Cooperation from Strength the United States, China and the South China Sea

Total Page:16

File Type:pdf, Size:1020Kb

Cooperation from Strength the United States, China and the South China Sea JANUARY Cooperation from Strength 2012 The United States, China and the South China Sea Edited by Patrick M. Cronin Contributors: Patrick M. Cronin, Peter A. Dutton, M. Taylor Fravel, James R. Holmes, Robert D. Kaplan, Will Rogers and Ian Storey Acknowledgments I would like to thank the dozens of experts who generously contributed their time and expertise to this project, particularly the contributing authors who produced such insightful chapters. I am especially indebted to Kristin Lord and Nora Bensahel for their tremendous support and guidance throughout the course of the project, including their diligent editorial advice. Will Rogers contributed far more than a chapter to this vol- ume, from its inception through to its conclusion as a published report. I am particularly grateful to the many people who reviewed drafts of the chapters included in this volume, including Frank Hoffman, Thomas Mahnken and Benjamin Self. Christine Parthemore deserves special recognition for her role in helping conceptualize and launch this project while at the Center for a New American Security (CNAS). I offer special thanks to Brian Burton, Abraham Denmark and Daniel Kliman who also helped sculpt this project. In addition, I wish to thank the dozens of dedicated professionals in the U.S. government, armed services and private sector who candidly shared their perspectives. I would like to recognize the valuable contributions made by my colleagues at CNAS, particularly Nate Fick, John Nagl, David Asher, Sara Conneighton, Richard Fontaine, Andrew Exum, Zachary M. Hosford and Shannon O’Reilly. Liz Fontaine provided her usual high caliber of design expertise. Rickisha Berrien provided scrupulous research and fact checking for this project. Readers should note that the views expressed in each chapter belong to the author(s) alone. They do not necessarily reflect the views of the editor or any of the other contributing authors, nor do they necessarily reflect the views of the authors’ employers or any other organization. This publication was made possible through the support of grants from the Smith Richardson Foundation, GE Foundation and Chevron. Readers should also note that some organizations that have an interest in the issues discussed in this report support CNAS financially. CNAS maintains a broad and diverse group of more than 100 funders, including private founda- tions, government agencies, corporations and private individuals, and retains sole editorial control over its ideas, projects and products. A complete list of the Center’s financial supporters can be found on our website at www.cnas.org/support/ our-supporters. Cover Image (PHOTO BY SHUTTERSTOCK) TABLE OF CONTENts Chapter 1: Cooperation from Strength: 3 Chapter 4: Cracks in the Global Foundation: 67 U.S. Strategy and the South China Sea International Law and Instability By Patrick M. Cronin and Robert D. Kaplan in the South China Sea Chapter 2: Maritime Security in the South China 31 By Peter A. Dutton Sea and the Competition over Maritime Rights Chapter 5: The Role of Natural Resources 83 By M. Taylor Fravel in the South China Sea Chapter 3: China’s Bilateral and Multilateral 51 By Will Rogers Diplomacy in the South China Sea Chapter 6: Rough Waters for Coalition Building 99 By Ian Storey By James R. Holmes JANUARY 2012 Cooperation from Strength The United States, China and the South China Sea Edited by Patrick M. Cronin Contributors: Patrick M. Cronin, Peter A. Dutton, M. Taylor Fravel, James R. Holmes, Robert D. Kaplan, Will Rogers and Ian Storey Cooperation from Strength JANUARY 2012 The United States, China and the South China Sea About the Authors Patrick M. Cronin is a Senior Advisor and Senior Director of the Asia-Pacific Security Program at the Center for a New American Security. Peter A. Dutton is a Professor of Strategic Studies and Director of the China Maritime Studies Institute at the U.S. Naval War College. M. Taylor Fravel is an Associate Professor at the Massachusetts Institute of Technology. James R. Holmes is an Associate Professor at the U.S. Naval War College. Robert D. Kaplan is a Senior Fellow at the Center for a New American Security. Will Rogers is a Research Associate at the Center for a New American Security. Ian Storey is a Fellow at the Institute of Southeast Asian Studies. 2 | CHAPTER I: COOperatiON frOM Strength: U.S. StrategY and the SOuth China Sea By Patrick M. Cronin and Robert D. Kaplan Cooperation from Strength JANUARY 2012 The United States, China and the South China Sea COOPERATION FROM STRENGTH: I. EXECUTIVE SummarY U.S. StrategY AND THE SOUTH CHINA SEA American interests are increasingly at risk in the South China Sea due to the economic and military rise of China and concerns about its willingness to uphold existing legal norms. The United States and countries throughout the region have a deep and abiding interest in sea lines of communication that remain open to all, both for commerce and for peaceful military activity such as humanitarian interventions and coastal defense. China, however, continues to challenge that openness, both by questioning historical maritime norms and by developing military capabilities that allow it to threaten access to this maritime region. The geostrategic significance of the South China Sea is difficult to overstate. The South China Sea functions as the throat of the Western Pacific and Indian Oceans – a mass of connective economic tissue where global sea routes coalesce, account- By Patrick M. Cronin and Robert D. Kaplan ing for $1.2 trillion in U.S. trade annually. It is the demographic hub of the 21st-century global econ- omy, where 1.5 billion Chinese, nearly 600 million Southeast Asians and 1.3 billion inhabitants of the Indian subcontinent move vital resources and exchange goods across the region and around the globe. It is an area where more than a half-dozen countries have overlapping territorial claims over a seabed with proven oil reserves of seven billion barrels as well as an estimated 900 trillion cubic feet of natural gas. Defending U.S. interests and promoting the status quo need not – and should not – lead to conflict with China. Both the United States and China will continue to benefit from cooperation and, indeed, no Asian country has benefitted more from the U.S.-led system of international order than China. Nevertheless, managing ten- sions and advancing cooperation in the South China Sea will require persistent, painstaking attention in Washington. | 5 Cooperation from Strength JANUARY 2012 The United States, China and the South China Sea In the decades ahead, the challenge for the United to build multilateral institutions over the long run States will be how to preserve historic norms while recognizing that it may need to focus on regarding the freedom of navigation while adapt- bilateral or minilateral approaches in practice to ing to the growing power and activity of regional avoid provoking China. actors, including China. The aim is cooperation, but cooperation can best be advanced from a posi- Fourth, the United States should promote further tion of strength. This will require maintaining U.S. economic integration within the region, as well strength and wider regional cooperation, a concept as between the United States and the region, with that might be called “cooperative primacy.” a particular focus on trade. Trade is the currency of the realm in Asia and can help link America’s To protect U.S. and allied interests in the South strategic investments to the most dynamic region China Sea and preserve longstanding legal norms, in the world. U.S. policymakers should take five general steps: Fifth and finally, the United States will need to First, the United States should strengthen its get its China policy right. This will require active naval presence over the long term by building diplomatic and economic engagement backed by toward a 346-ship fleet rather than retreating to a strong U.S. military and a growing economy. A the 250-ship mark that the United States faces realistic policy begins by shoring up American due to budget cuts and the decommissioning of power and then actively supports rules-based aging warships in the next decade. Diplomatic and cooperation; it avoids military conflict but not economic engagement with China and others will diplomatic confrontation. work better when backed by a credible military posture. However, growing the Navy must be con- tingent on healthy economic growth in the future – a strategic priority for the United States. Second, the United States should foster a new web of security partnerships. The “hub and spoke” model of alliances between the United States and its East Asian partners is being eclipsed by a broader, more complicated and more diffuse web of relationships in which Asian countries are the primary drivers. Building a distributed network of stronger partners and allies in Southeast Asia should be an important, long-term objective of the United States. Third, the United States needs to ensure that peace and security in the South China Sea remain at the top of its diplomatic and security agenda. Freedom of navigation is a universal concern, and mari- time cooperation and mechanisms for peacefully resolving disputes should continue to be tackled in regional forums. The United States also needs 6 | II . INTRODUCTION varying degrees, they all depend on this exceed- ingly narrow choke point joining the Indian Ocean American interests are increasingly at risk in the to the Western Pacific – the Bay of Bengal to the South China Sea. Defending these interests need South China Sea – so that Middle Eastern oil and not – and should not – lead to conflict with China. natural gas can safely transit the high seas en route However, managing tensions and advancing to the burgeoning middle-class conurbations of cooperation in the South China Sea will require East Asia that are so critical to the world economy.
Recommended publications
  • South China Sea Overview
    ‹ Countries South China Sea Last Updated: February 7, 2013 (Notes) full report Overview The South China Sea is a critical world trade route and a potential source of hydrocarbons, particularly natural gas, with competing claims of ownership over the sea and its resources. Stretching from Singapore and the Strait of Malacca in the southwest to the Strait of Taiwan in the northeast, the South China Sea is one of the most important trade routes in the world. The sea is rich in resources and holds significant strategic and political importance. The area includes several hundred small islands, rocks, and reefs, with the majority located in the Paracel and Spratly Island chains. Many of these islands are partially submerged land masses unsuitable for habitation and are little more than shipping hazards. For example, the total land area of the Spratly Islands encompasses less than 3 square miles. Several of the countries bordering the sea declare ownership of the islands to claim the surrounding sea and its resources. The Gulf of Thailand borders the South China Sea, and although technically not part of it, disputes surround ownership of that Gulf and its resources as well. Asia's robust economic growth boosts demand for energy in the region. The U.S. Energy Information Administration (EIA) projects total liquid fuels consumption in Asian countries outside the Organization for Economic Cooperation and Development (OECD) to rise at an annual growth rate of 2.6 percent, growing from around 20 percent of world consumption in 2008 to over 30 percent of world consumption by 2035. Similarly, non-OECD Asia natural gas consumption grows by 3.9 percent annually, from 10 percent of world gas consumption in 2008 to 19 percent by 2035.
    [Show full text]
  • A Move from the Himalayas to the High Seas?
    India-China conflict: A move from the Himalayas to the high seas? A risky naval blockade in the Indian Ocean is touted by some as a way to pressure China’s vital energy routes. By Dr David Brewster Last month’s clash between Indian and Chinese troops in Ladakh was the most significant conflict between the two countries since 1967. Despite signs of a partial tactical pullback in some places, there is considerable risk of further confrontations and even escalation along the disputed border. Some have been urging the Indian government to respond to China’s moves in the Himalayas by placing pressure on Beijing in the Indian Ocean. What are India’s options and how likely is it to take such actions? The Indian Ocean holds a particular place in the India-China strategic relationship. In almost every dimension, whether it be economic, nuclear or the conventional strategic balance along the Line of Actual Control in the Himalayas, India is probably at a considerable strategic disadvantage to China. Only in the Indian Ocean, which includes China’s vital energy routes from the Persian Gulf and Africa, does India have the upper hand. This has important implications for the strategy dynamic. Decades ago, prominent US Sinologist John Garver argued that in the event of a conflict between the two countries, India might be tempted to escalate from the land dimension, where it may suffer reverses, to the maritime dimension, where it enjoys substantial advantages, and employ those advantages to restrict China’s vital Indian Ocean trade. In strategic jargon, the Indian Ocean represents “interior lines” for India – where the Indian Navy is close to its own bases and logistics – and “exterior lines” for China, where its navy is operating with limited logistical support, away from home.
    [Show full text]
  • Shexiang Baoxin Pill, a Traditional Chinese Herbal Formula, Rescues the Cognitive Impairments in APP/ PS1 Transgenic Mice
    ORIGINAL RESEARCH published: 14 July 2020 doi: 10.3389/fphar.2020.01045 Shexiang Baoxin Pill, a Traditional Chinese Herbal Formula, Rescues the Cognitive Impairments in APP/ PS1 Transgenic Mice † † Wei-Hui Hu 1,2,3 , Shing-Hung Mak 1,2 , Zhong-Yu Zheng 1,2, Ying-Jie Xia 1,2, Miranda Li Xu 1,2, Ran Duan 1,2,3, Tina Ting-Xia Dong 1,2,3, Shao-Ping Li 4, Chang-Sen Zhan 5,6, Xiao-Hui Shang 5,6 and Karl Wah-Keung Tsim 1,2,3* 1 Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Shenzhen, China, 2 Division of Life Science and Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Hong Kong, Hong Kong, 3 Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, China, 4 Institute of Chinese Medical Sciences, University of Macau, Macau, Macau, 5 Shanghai Edited by: Engineering Research Center for Innovation of Solid Preparation of TCM, Shanghai, China, 6 Shanghai Hutchison Qiaobing Huang, Pharmaceuticals Ltd., Shanghai, China Southern Medical University, China Reviewed by: Background: Shexiang Baoxin Pill (SBP), a formulated traditional Chinese medicine Bing-Xing Pan, Nanchang University, China (TCM), has been widely used to treat cardiovascular diseases for years. This herbal Wenda Xue, mixture has been shown to promote differentiation of cultured neuronal cells. Here, we Nanjing University of Chinese aimed to investigate the effects of SBP in attenuating cognitive impairment in APP/PS1 Medicine, China *Correspondence: transgenic mice.
    [Show full text]
  • China's Postal Services
    Studies on the Changing Postal Marketplace: Vol. 1 China’s Postal Services: Which Path Forward? Jessica Ciccone Adams and Don Soifer June 2014 EXECUTIVE SUMMARY T his report represents the first in a series examining the postal and delivery sectors of the world’s major economies. It focuses on China’s postal services, market dynamics and the extent to which the needs of household and business consumers are being met. China was selected as the first post to review due to its significant market presence and growing influence, with China Post revenue exceeding 97 billion yuan (US $15 billion), and delivering nearly 2.4 billion pieces during the first half of 2012. While China Post has realized significant growth in both postal and non-postal revenue, it has largely ignored trends that have characterized the reform strategies of other national posts. For example: • Service standards such as those published by postal operators in most industrialized countries do not exist for China Post, whose annual report instead publishes numbers of complaints received and the results of customer surveys on satisfaction and perceptions of improvement. • Regulation by an independent regulatory authority, with delineated separation between operational and regulatory responsibilities. • Draft regulations introduced in 2013 would impose new fees on private delivery operators, with no evident link to the proceeds contributing to either improvements in service quality or increased liberalization to expand consumer options. • Deregulation of the postal monopoly. Laws that create and protect postal monopolies have tended to result in decreased delivery performance and increased costs, to the detriment of the consumer.
    [Show full text]
  • Geohack - Boroo Gold Mine
    GeoHack - Boroo Gold Mine DMS 48° 44′ 45″ N, 106° 10′ 10″ E Decim al 48.745833, 106.169444 Geo URI geo:48.745833,106.169444 UTM 48U 585970 5399862 More formats... Type landmark Region MN Article Boroo Gold Mine (edit | report inaccu racies) Contents: Global services · Local services · Photos · Wikipedia articles · Other Popular: Bing Maps Google Maps Google Earth OpenStreetMap Global/Trans-national services Wikimedia maps Service Map Satellite More JavaScript disabled or out of map range. ACME Mapper Map Satellite Topo, Terrain, Mapnik Apple Maps (Apple devices Map Satellite only) Bing Maps Map Aerial Bird's Eye Blue Marble Satellite Night Lights Navigator Copernix Map Satellite Fourmilab Satellite GeaBios Satellite GeoNames Satellite Text (XML) Google Earthnote Open w/ meta data Terrain, Street View, Earth Map Satellite Google Maps Timelapse GPS Visualizer Map Satellite Topo, Drawing Utility HERE Map Satellite Terrain MapQuest Map Satellite NASA World Open Wind more maps, Nominatim OpenStreetMap Map (reverse geocoding), OpenStreetBrowser Sentinel-2 Open maps.vlasenko.net Old Soviet Map Waze Map Editor, App: Open, Navigate Wikimapia Map Satellite + old places WikiMiniAtlas Map Yandex.Maps Map Satellite Zoom Earth Satellite Photos Service Aspect WikiMap (+Wikipedia), osm-gadget-leaflet Commons map (+Wikipedia) Flickr Map, Listing Loc.alize.us Map VirtualGlobetrotting Listing See all regions Wikipedia articles Aspect Link Prepared by Wikidata items — Article on specific latitude/longitude Latitude 48° N and Longitude 106° E — Articles on
    [Show full text]
  • China's Claim of Sovereignty Over Spratly and Paracel Islands: a Historical and Legal Perspective Teh-Kuang Chang
    Case Western Reserve Journal of International Law Volume 23 | Issue 3 1991 China's Claim of Sovereignty over Spratly and Paracel Islands: A Historical and Legal Perspective Teh-Kuang Chang Follow this and additional works at: https://scholarlycommons.law.case.edu/jil Part of the International Law Commons Recommended Citation Teh-Kuang Chang, China's Claim of Sovereignty over Spratly and Paracel Islands: A Historical and Legal Perspective, 23 Case W. Res. J. Int'l L. 399 (1991) Available at: https://scholarlycommons.law.case.edu/jil/vol23/iss3/1 This Article is brought to you for free and open access by the Student Journals at Case Western Reserve University School of Law Scholarly Commons. It has been accepted for inclusion in Case Western Reserve Journal of International Law by an authorized administrator of Case Western Reserve University School of Law Scholarly Commons. China's Claim of Sovereignty Over Spratly and Paracel Islands: A Historical and Legal Perspective Teh-Kuang Chang* I. INTRODUCTION (Dn August 13, 1990, in Singapore, Premier Li Peng of the People's Re- public of China (the PRC) reaffirmed China's sovereignty over Xisha and Nansha Islands.1 On December. 29, 1990, in Taipei, Foreign Minis- ter Frederick Chien stated that the Nansha Islands are territory of the Republic of China.2 Both statements indicated that China's claim to sov- ereignty over the Paracel and Spratly Islands was contrary to the claims of other nations. Since China's claim of Spratly and Paracel Islands is challenged by its neighboring countries, the ownership of the islands in the South China Sea is an unsettled international dispute.3 An understanding of both * Professor of Political Science, Ball State University.
    [Show full text]
  • Association for Postal Commerce
    Association for Postal Commerce 1901 N. Fort Myer Dr., Ste 401 * Arlington, VA 22209-1609 * USA * Ph.: +1 703 524 0096 * Fax: +1 703 524 1871 Postal News from December 2011: December 31, 2011 Express and Star: A pay row between Royal Mail and temporary workers has intensified after staff waiting for Christmas wages had just 1p put into their bank accounts. Hundreds of workers employed to tackle the Christmas rush have suffered after payroll problems delayed their wages. The firm insists it has managed to pay most of its seasonal workers but staff, some of whom say they are owed hundreds of pounds, say they were stunned to find their accounts credited with just a penny. The mix-up has affected staff at sorting offices in Wolverhampton, Birmingham and Stafford. Royal Mail has apologised but said the "vast majority" of those issued 1p had been overpaid previously and it was a nominal fee to complete a transaction. At the Postal Regulatory Commission: Postal Regulatory Commission NOTICES New Postal Products , 143–144 [2011–33671] [TEXT] [PDF] Moconews.net: According to figures from ZenithOptimedia, global advertising revenues will reach $486 billion in 2012, a rise of 4.7 percent compared to 2011. With wider economic pressures bearing down on the overall ad market, digital ad spend is still seeing healthy growth: it will account for slightly more than one-fifth of all ad spend, but more than half of all growth, as advertisers become more confident in digital media metrics, and the ad industry gets more sophisticated in what it offers to brands and publishers in the name of digital advertising—which will remain a key way of funding digital content, as media companies continue to tinker with other charging models.
    [Show full text]
  • The 1974 Paracels Sea Battle: a Campaign Appraisal
    Naval War College Review Volume 69 Article 6 Number 2 Spring 2016 The 1974 aP racels Sea Battle: A aC mpaign Appraisal Toshi Yoshihara The U.S. Naval War College Follow this and additional works at: https://digital-commons.usnwc.edu/nwc-review Recommended Citation Yoshihara, Toshi (2016) "The 1974 aP racels Sea Battle: A aC mpaign Appraisal," Naval War College Review: Vol. 69 : No. 2 , Article 6. Available at: https://digital-commons.usnwc.edu/nwc-review/vol69/iss2/6 This Article is brought to you for free and open access by the Journals at U.S. Naval War College Digital Commons. It has been accepted for inclusion in Naval War College Review by an authorized editor of U.S. Naval War College Digital Commons. For more information, please contact [email protected]. Yoshihara: The 1974 Paracels Sea Battle: A Campaign Appraisal THE 1974 PARACELS SEA BATTLE A Campaign Appraisal Toshi Yoshihara n 19 January 1974, the Chinese and South Vietnamese navies clashed near the disputed Paracel Islands� The short but intense battle left China in Ocontrol of seemingly unremarkable spits of land and surrounding waters in the South China Sea� The skirmish involved small, secondhand combatants armed with outdated weaponry� The fighting lasted for several hours, producing modest casualties in ships and men� The incident merited little public attention, espe- cially when compared with past titanic struggles at sea, such as those of the two world wars� Unsurprisingly, the battle remains an understudied, if not forgotten, episode in naval history�1
    [Show full text]
  • Beyond the Wall: Chinese Far Seas Operation
    U.S. Naval War College U.S. Naval War College Digital Commons CMSI Red Books China Maritime Studies Institute 5-2015 Beyond the Wall: Chinese Far Seas Operation Peter A. Dutton Ryan D. Martinson Follow this and additional works at: https://digital-commons.usnwc.edu/cmsi-red-books Recommended Citation Dutton, Peter A. and Martinson, Ryan D., "Beyond the Wall: Chinese Far Seas Operation" (2015). CMSI Red Books, Study No. 13. This Book is brought to you for free and open access by the China Maritime Studies Institute at U.S. Naval War College Digital Commons. It has been accepted for inclusion in CMSI Red Books by an authorized administrator of U.S. Naval War College Digital Commons. For more information, please contact [email protected]. Beyond the Wall Chinese Far Seas Operations Peter A. Dutton and Ryan D. Martinson, Editors CHINA MARITIME STUDIES INSTITUTE U.S. NAVAL WAR COLLEGE Newport, Rhode Island www.usnwc.edu/Research---Gaming/China-Maritime-Studies-Institute.aspx Naval War College The China Maritime Studies are extended research projects Newport, Rhode Island that the editor, the Dean of Naval Warfare Studies, and the Center for Naval Warfare Studies President of the Naval War College consider of particular China Maritime Study No. 13 interest to policy makers, scholars, and analysts. May 2015 Correspondence concerning the China Maritime Studies President, Naval War College may be addressed to the director of the China Maritime Rear Admiral P. Gardner Howe III, U.S. Navy Studies Institute, www.usnwc.edu/Research---Gaming/ Provost China-Maritime-Studies-Institute.aspx. To request ad- Dr.
    [Show full text]
  • RUSSIA and CHINA and Central Asia Programme at ISPI
    RUSSIA AND CHINA. ANATOMY OF A A PARTNERSHIP OF AND RUSSIA CHINA. ANATOMY Aldo Ferrari While the “decline of the West” is now almost taken is Head of the Russia, Caucasus for granted, China’s impressive economic performance RUSSIA AND CHINA and Central Asia Programme at ISPI. and the political influence of an assertive Russia in the international arena are combining to make Eurasia a key Founded in 1934, ISPI is Eleonora Tafuro Ambrosetti Anatomy of a Partnership hub of political and economic power. That, certainly, an independent think tank is a Research Fellow committed to the study of is the story which Beijing and Moscow have been telling at the Russia, Caucasus and international political and Central Asia Centre at ISPI. for years. edited by Aldo Ferrari and Eleonora Tafuro Ambrosetti economic dynamics. Are the times ripe for a “Eurasian world order”? What It is the only Italian Institute exactly does the supposed Sino-Russian challenge to introduction by Paolo Magri – and one of the very few in the liberal world entail? Are the two countries’ worsening Europe – to combine research clashes with the West drawing them closer together? activities with a significant This ISPI Report tackles every aspect of the apparently commitment to training, events, solidifying alliance between Moscow and Beijing, but also and global risk analysis for points out its growing asymmetries. It also recommends companies and institutions. some policies that could help the EU to deal with this ISPI favours an interdisciplinary “Eurasian shift”, a long-term and multi-faceted power and policy-oriented approach made possible by a research readjustment that may lead to the end of the world team of over 50 analysts and as we have known it.
    [Show full text]
  • Visualization of the Geophysical Settings in the Philippine Sea Margins by Means of GMT and ISC Data
    Central European Journal of Geography and Sustainable Development 2020, Volume 2, Issue 1, Pages: 5-15 ISSN 2668-4322, ISSN-L 2668-4322 https://doi.org/10.47246/CEJGSD.2020.2.1.1 Visualization of the geophysical settings in the Philippine Sea margins by means of GMT and ISC data Polina Lemenkova* Ocean University of China, College of Marine Geo-sciences, 238 Songling Rd, Laoshan, 266100, Qingdao, Shandong, China; [email protected] Received: 22 February 2020; Revised: 12 March 2020; Accepted: 20 March 2020; Published online: 25 March 2020 _________________________________________________________________________________________________________________________ Abstract: The presented research aimed to perform geophysical modelling (gravity and geoid) and to evaluate the spatio-temporal variation of the marine geological data (distribution and depth of earthquakes) using combination of the Generic Mapping Tools (GMT) and available sources from the International Seismological Centre (ISC-EHB) that produce data on earthquakes as part of seismic survey and regional research projects. The target study area is a Philippine Sea basin (PSB) with two focused marginal areas: Philippine Trench and Mariana Trench, two hadal trenches located in the places of the tectonic plates subduction. Marine free-air gravity anomaly in the PSP shows higher values (>80 mGal) of the gravity fields structure at the volcanic areas and Philippine archipelago. Current study presented comparative geophysical analysis, and mapping free-air gravity and geoid in the Philippine Sea basin area. As a result of this study, the average level of earthquakes located in the Philippine Trench and Mariana Trench areas were compared, and those located in the Philippine archipelago are determined to be in the souther-western part (area of west Mindanao, south-west Visayas islands), while Luzon Islands shown shallower located earthquakes.
    [Show full text]
  • Team Publishes New Data About the History of the Pacific Ring of Fire 10 February 2017
    Team publishes new data about the history of the Pacific Ring of Fire 10 February 2017 level, it holds the record as the deepest point of the world's ocean. This 4000-kilometer-long trench extends from the Mariana Islands in the south through the Izu-Bonin Islands to Japan in the north. Here, the Pacific Plate is subducted beneath the Philippine Sea Plate, resulting in intense volcanic activity and a high number of earthquakes. The entire area is part of the "Pacific Ring of Fire." But when and how exactly did the subduction of the Pacific Plate begin? This is a controversial topic among scientists. An international team led by the GEOMAR Helmholtz Center for Ocean Research Kiel, the Japan Agency for Marine Earth Science and Technology (JAMSTEC) and the Australian National University investigated this early phase of subduction along the Izu-Bonin-Mariana trench, with findings published in the March edition of the scientific journal Earth and Planetary Science Letters. The graphic shows the early stages of the Izu-Bonin The study is based on a drill core that was obtained subduction zone. The active subduction zone has been by the International Ocean Discovery Program moving eastwards throughout its history. The drilling (IODP) in 2014 with the US research drilling vessel took place where the process has begun. Credit: Philipp JOIDES RESOLUTION some 600 kilometers west Brandl, GEOMAR of the current Izu-Bonin Trench. "For the first time, we were able to obtain samples of rocks that originate from the first stages of subduction," says Dr. Philipp Brandl from GEOMAR, first author of the The movements of Earth's tectonic plates shape study.
    [Show full text]