Volcanoes Educator's Guide
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Umbrella Falls Trail #667 Northwest Forest Pass Required Recreation Opportunity Guide May 15 - Oct 1
Umbrella Falls Trail #667 Northwest Forest Pass Required Recreation Opportunity Guide May 15 - Oct 1 Distance ........................................ 3.1 miles (one way) Elevation ....................................... 4550-5750 feet Snow Free .................................... July to October More Difficult Trail Highlights: This trail is on the southeast side of Mount Hood. The trail passes Umbrella Falls on the way to the Mount Hood Meadows Ski Area. The trail provides easy access to Timberline Trail #600. Trail Description: This trail begins at its junction with Timberline Trail #600, heads southeast and ends at its junction with Sahalie Falls Trail #667C. From Timberline Trail #600 (5,800’), the trail heads southeast through a meadow and crosses two small creeks. After 0.4 miles, the trail switches back several times before heading north another 0.3 mile to Mitchell Creek (5,540’). Cross Mitchell Creek on the wooden bridge and continue downhill (southeast) 0.5 mile to Mount Hood Meadows Road (5,200’). (This is a good place to start the hike). Cross Mount Hood Meadows Road and follow the trail north 0.25 mile to Umbrella Falls (5,250’). Continue past the falls 0.25 mile to the first junction with Sahalie Falls Trail #667C. Continue from the junction, crossing several ski runs, 1.3 miles to the second junction with Sahalie Falls Trail #667C and the end of this trail. Hikers can return on this trail or take Sahalie Falls Trail #667C 2.1 miles back to the first junction with this trail. Regulations & Leave No Trace Information: There are no bikes allowed between Timberline Trail #600 and Forest Road 3555. -
Human Health and Vulnerability in the Nyiragongo Volcano Crisis Democratic Republic of Congo 2002
Human Health and Vulnerability in the Nyiragongo Volcano Crisis Democratic Republic of Congo 2002 Final Report to the World Health Organisation Dr Peter J Baxter University of Cambridge Addenbrooke’s Hospital Cambridge, UK Dr Anne Ancia Emergency Co-ordinator World Health Organisation Goma Nyiragongo Volcano with Goma on the shore of Lake Kivu Cover : The main lava flow which shattered Goma and flowed into Lake Kivu Lava flows from the two active volcanoes CONGO RWANDA Sake Munigi Goma Lake Kivu Gisenyi Fig.1. Goma setting and map of area and lava flows HUMAN HEALTH AND VULNERABILITY IN THE NYIRAGONGO VOLCANO CRISIS DEMOCRATIC REPUBLIC OF CONGO, 2002 FINAL REPORT TO THE WORLD HEALTH ORGANISATION Dr Peter J Baxter University of Cambridge Addenbrooke’s Hospital Cambridge, UK Dr Anne Ancia Emergency Co-ordinator World Health Organisation Goma June 2002 1 EXECUTIVE SUMMARY We have undertaken a vulnerability assessment of the Nyiragongo volcano crisis at Goma for the World Health Organisation (WHO), based on an analysis of the impact of the eruption on January 17/18, 2002. According to volcanologists, this eruption was triggered by tectonic spreading of the Kivu rift causing the ground to fracture and allow lava to flow from ground fissures out of the crater lava lake and possibly from a deeper conduit nearer Goma. At the time of writing, scientists are concerned that the continuing high level of seismic activity indi- cates that the tectonic rifting may be gradually continuing. Scientists agree that volcano monitoring and contingency planning are essential for forecasting and responding to fu- ture trends. The relatively small loss of life in the January 2002 eruption (less than 100 deaths in a population of 500,000) was remarkable, and psychological stress was reportedly the main health consequence in the aftermath of the eruption. -
Lewis and Clark Mount Hood Final Wilderness Map 2009
!( !( !( !( !( !( !( R. 4 E. R. 5 E. R. 6 E. R. 7 E. R. 8 E. R. 9 E. R. 10 E. R. 11 E. R. 12 E. R. 13 E. (!141 !( !( !( n (!14 o ER 142 t RIV (! !( 14 (! 30 !( g IA ¤£ HOOD a MB 84 e LU ¨¦§ RIVER n Ar CO !( i WYETH VIENTO c !( i en !( h ROCKFORD MOSIER !( c 14 S !( !( (! ROWENA s l a ¤£30 a CASCADE 00 ! n !( 20 o LOCKS OAK GROVE i !( !( t !35 a R. ( 30 W N Hood !(VAN ¤£ T. HORN 2 !( 197 ge ¤£ N. or CRATES G BONNEVILLE 84 POINT !( ¨¦§ ODELL !( !( Gorge Face !( 84 500 er ¨¦§ (! 140 v MARK O. HATFIELD !( !( (! i !( R WILDERNESS !( !( a HOOD RIVER WASCO i !( WINANS THE DALLES !( b COUNTY COUNTY um !( l DEE !( !( !( o E !( ER . C IV F Wahtum R k. !( Ea Lake g . le r Cr. MULTNOMAH A C BI FALLS!( l . M a R LU p d O O E C o o . F T. 14 H 17 T. ! . ( k Ý BRIDAL k . !( H 1 VEIL F 1 . o N. ! M o !( N. !( !( 84 d MOUNT § R FAIRVIEW ¨¦ 15 HOOD 30 !( Ý . !( !( !( Byp 0 TROUTDALE CORBETT LATOURELL FALLS 0 ¤£ 0 2 Ý13 !( !( Ý20 !( HOOD RIVER WASCO PARKDALE !( !( !( !( !( COUNTY COUNTY TWELVEMILE SPRINGDALE Bu Ý18 Larch Mountain ll CORNER R 16 !( !( Ý10 u Ý ENDERSBY n !( !( R Lost !( Bull Run . Middle Fork !( Lake !( !( !( GRESHAM Reservoir #1 Hood River ! !( T. T. !( Elk Cove/ 1 Mazama 1 S. Laurance 35 S. !( Ý12 (! ORIENT Ý MULTNOMAH COUNTY Lake DUFUR !( !( !( CLACKAMAS COUNTY ! COTRELL Bull Run ! !( Lake Shellrock ile Cr. -
Democratic Republic of the Congo | Mount Nyiragongo Eruption
Emergency Response Coordination Centre (ERCC) – DG ECHO Daily Map | 04/06/2021 Democratic Republic of the Congo | Mount Nyiragongo eruption CENTRAL SOUTH Nyiragongo volcano • On 2 June, ERCC received a request from DRC to COPERNICUS GRADING PRODUCT AFRICAN SUDAN REPUBLIC 3,470 m activate the EU Civil Protection Mechanism A started erupting on the (UCPM) following to the volcanic eruption in 22nd May 2021 Mount Nyiragongo and the related seismic GDACS activity. UGANDA Red alert • The request consists of food and non-food items, DEMOCRATIC WASH items, shelter, medicines and medical RWANDA REPUBLIC OF KENYA equipment. THE CONGO BURINDI • The European Commission has allocated emergency humanitarian funding of €2 million INDIAN OCEAN for those affected by the eruption. TANZANIA Source: DG ECHO Shaheru ZAMBIA adventive cone MALAWI 2,800 m Vent 1 COPERNICUS GRADING PRODUCT B Vent 2 Destination of population displacement 10,555 North xx Number of displaced people Kivu Source: UN-OCHA as of 31 May Roads A Vent 3 52,650 62,802 53,345 8,747 Rwerere 13,473 4,320 Humanitarian 3,011 situation overview 4,224 Source: UN OCHA as of 25 May, 26 May, 12,669 01 June 31 Fatalities B 232,433 Total displaced 4,758 people 40 1,879 Missing people Nyiragongo Main fault Damage assessment Source: GDACS, Virunga Volcanoes Source: GEM Source: Copernicus EMSR513 Volcanic vent Damaged waste water station Source: UNITAR-UNOSAT Volcanic fissure 1,276 Closed airport Source: UNITAR-UNOSAT ID3300, USGS Airport Destroyed residential Source: UNOCHA Lava flow Latest lava flow detection Urban area buildings 23-30 May as of 1 Jun South Kivu Source: HOTOSM 130 Source: Copernicus EMSR513, UNITAR-UNOSAT ID3300 Rubavu Copernicus grading product Administrative division Lake Possibly damaged Source: Copernicus EMSR513 Goma Country border Kivu residential buildings Destroyed building © European Union, 2021. -
Case Study Notes
Hazardous Earth: Sakurajima and Nyiragongo Volcano in a Developed Country: Sakurajima, Japan Sakurajima is a composite volcano (also called a stratovolcano) located in southern Japan. The volcano has been extremely active since the 1950s; some years, up to 200 eruptions have taken place! Sakurajima is on a convergent plate boundary, where the Pacific plate subducts beneath the Eurasian plate. (Source:www.flickr.com/photos/kimon/4506849144/) This type of plate boundary causes Sakurajima eruptions to be explosive, producing lots of ash, pyroclastic flows, volcanic bombs and poisonous gases. The lava is andesitic, which has a high gas content and is very viscous (thick). Japan is a developed country, with a GDP of 4.97 trillion USD (2018). Location of Sakurajima (orange icon). h Volcano in a Developing Country: Mount Nyiragongo, DRC Mount Nyiragongo is a composite volcano located in the east of the Democratic Republic of the Congo (DRC). The volcano consists of a huge (2km wide) crater usually filled with a lava lake, and is only 20km away from the city of Goma. Nyiragongo is currently classed as active (2020). (Source: wiki) Nyiragongo is on a divergent plate boundary: the African plate is being pulled apart into the Nubian plate (east) and Somali plate (west), causing lava to rise between. This results in non-explosive eruptions with basaltic lava which has a low viscosity (runny & fast-flowing - up to 37 mph). Location of Nyiragongo (orange icon). This work by PMThttps://bit.ly/pmt-edu-cc Education is licensed under https://bit.ly/pmt-ccCC BY-NC-ND 4.0 https://bit.ly/pmt-cc https://bit.ly/pmt-edu https://bit.ly/pmt-cc Impacts of Volcanoes in Contrasting Areas Impacts in Japan Developed country Primary impacts ● Around 30km3 of ash erupts from the volcano each year, damaging crops and electricity lines. -
Country Travel Risk Summaries
COUNTRY RISK SUMMARIES Powered by FocusPoint International, Inc. Report for Week Ending September 19, 2021 Latest Updates: Afghanistan, Burkina Faso, Cameroon, India, Israel, Mali, Mexico, Myanmar, Nigeria, Pakistan, Philippines, Russia, Saudi Arabia, Somalia, South Sudan, Sudan, Syria, Turkey, Ukraine and Yemen. ▪ Afghanistan: On September 14, thousands held a protest in Kandahar during afternoon hours local time to denounce a Taliban decision to evict residents in Firqa area. No further details were immediately available. ▪ Burkina Faso: On September 13, at least four people were killed and several others ijured after suspected Islamist militants ambushed a gendarme patrol escorting mining workers between Sakoani and Matiacoali in Est Region. Several gendarmes were missing following the attack. ▪ Cameroon: On September 14, at least seven soldiers were killed in clashes with separatist fighters in kikaikelaki, Northwest region. Another two soldiers were killed in an ambush in Chounghi on September 11. ▪ India: On September 16, at least six people were killed, including one each in Kendrapara and Subarnapur districts, and around 20,522 others evacuated, while 7,500 houses were damaged across Odisha state over the last three days, due to floods triggered by heavy rainfall. Disaster teams were sent to Balasore, Bhadrak and Kendrapara districts. Further floods were expected along the Mahanadi River and its tributaries. ▪ Israel: On September 13, at least two people were injured after being stabbed near Jerusalem Central Bus Station during afternoon hours local time. No further details were immediately available, but the assailant was shot dead by security forces. ▪ Mali: On September 13, at least five government soldiers and three Islamist militants were killed in clashes near Manidje in Kolongo commune, Macina cercle, Segou region, during morning hours local time. -
Preliminary Ranking of Geothermal Potential in the Cascade and Aleutian Volcanic Arcs, Part I: Data Collection
GRC Transactions, Vol. 39, 2015 Preliminary Ranking of Geothermal Potential in the Cascade and Aleutian Volcanic Arcs, Part I: Data Collection Lisa Shevenell1, Mark Coolbaugh1,2, Nicholas H. Hinz2, Pete Stelling3, Glenn Melosh4, William Cumming5, and Corné Kreemer2 1ATLAS Geoscience, Inc., Reno NV, USA 2Nevada Bureau of Mines and Geology, UNR, Reno NV, USA 3Western Washington University, Bellingham WA, USA 4GEODE, Santa Rosa CA, USA • 5Cumming Geoscience, Santa Rosa CA, USA [email protected] • [email protected] • [email protected] • [email protected] [email protected] • [email protected] • [email protected] Keywords Cascade, Aleutian, volcanic, geothermal, potential, structure, database ABSTRACT As part of a DOE funded project on Geothermal Play Fairway Analysis, a geothermal assessment of volcanic centers in the Cascade and Aleutian volcanic arcs is being conducted that includes a large data gathering effort dis- cussed in this paper, and a statistical modeling effort to qualitatively rank the geothermal potential of individual VCs in these two US arcs, discussed in a second companion paper. The data compiled from the Cascades and Aleutians are compared to geologic, geochemical and geophysical information from productive volcanic arc centers in the other parts of the world. Seven other volcanic arc segments from around the globe are used in this comparative study. Preliminary findings from data evaluation indicate that there are systematic changes in structural setting, from an extensional influ- ence south of Mt. Hood (in part due to encroachment of the back arc in the southern half) to more compressional north of Mt. Hood. Comparison with productive geothermal fields around the world shows that large fumarolic areas are associated with most >240°C power-producing geothermal systems outside the US arcs (e.g., Kamojang, Indonesia, among others), whereas there is a general absence of large fumarolic areas in the Cascades and Aleutian arcs, aside from of the Lassen volcano area. -
Recent Activity at Nyiragongo and Lava-Lake Occurrences
RECENT ACTIVITY AT NYIRAGONGO AND LAVA-LAKE OCCURRENCES HAROUN TAZIEFF TAZIEFF, HAROUN, 1985: Recent Activity at Nyiragongo and lava-lake occurrences. Bull. Geol. Soc. Finland 57, Part 1—2, 11—19. The behaviour of Nyiragongo, before and after its outbreak on January 10th, 1977, as compared with the behaviour of the other two volcanoes containing sub- permanent lava-lakes nowadays, Erta'Ale and Mount Erebus, suggests that the considerable convection necessary to feed such a lake with fresh magma can exist only if wide open fractures intersect at a given spot, thus creating a channel broad enough to allow such a convection. In contrast to Halemaumau, whose lava-lake vanished during the Kilauea eruption in 1924 and has still not reappeared, and Nyamlagira, whose lava-lake was drained out during its long (from 1938 to 1940) eruption, Mount Nyiragongo has resumed this exceptional type of activity a mere five years after its own lake was tapped off. The proposed hypothesis is that the January 1977 outbreak was a »passive» one whereas the 1924 and 1938 eruptions were »ac- tive». By active, we mean those which are due to a specific magma eruptivity, that is to say, vesiculation of the gaseous phase previously dissolved in the silicated melt. The outbreak on 10th January 1977 was passive in that both the lava-lake end the underlying magma were flowing out of the volcanic cone when the cone cracked not under its own magma pressure, which in fact had not yet reached vesicular eruptive maturity, but under the subjacent parental magma, pushing up both the Nyiragongo and Nyamlagira volcanoes from beneath. -
The Tragedy of Goma Most Spectacular Manifestation of This Process Is Africa’S Lori Dengler/For the Times-Standard Great Rift Valley
concentrate heat flowing from deeper parts of the earth like a thicK BlanKet. The heat eventually causes the plate to bulge and stretch. As the plate thins, fissures form allowing vents for hydrothermal and volcanic activity. The Not My Fault: The tragedy of Goma most spectacular manifestation of this process is Africa’s Lori Dengler/For the Times-Standard Great Rift Valley. Posted June 6, 2021 https://www.times-standard.com/2021/06/06/lori- In Africa, we are witnessing the Birth of a new plate dengler-the-tragedy-of-goma/ boundary. Extensional stresses from the thinning crust aren’t uniform. The result is a number of fissures and tears On May 22nd Mount Nyiragongo in the Democratic oriented roughly north south. The rifting began in the Afar RepuBlic of the Congo (DRC) erupted. Lava flowed towards region of northern Ethiopia around 30 million years ago the city of Goma, nine miles to the south. Goma, a city of and has slowly propagated to the south at a rate of a few 670,000 people, is located on the north shore of Lake Kivu inches per year and has now reached MozamBique. In the and adjacent to the Rwanda border. Not all of the details coming millennia, the rifts will continue to grow, eventually are completely clear, but the current damage tally is 32 splitting Ethiopia, Kenya, Tanzania and much of deaths, 1000 homes destroyed, and nearly 500,000 people Mozambique into a new small continent, much liKe how displaced. Madagascar Began to Be detached from the main African continent roughly 160 million years ago. -
GEOLOGIC MAP of the MOUNT ADAMS VOLCANIC FIELD, CASCADE RANGE of SOUTHERN WASHINGTON by Wes Hildreth and Judy Fierstein
U.S. DEPARTMENT OF THE INTERIOR TO ACCOMPANY MAP 1-2460 U.S. GEOLOGICAL SURVEY GEOLOGIC MAP OF THE MOUNT ADAMS VOLCANIC FIELD, CASCADE RANGE OF SOUTHERN WASHINGTON By Wes Hildreth and Judy Fierstein When I climbed Mount Adams {17-18 August 1945] about 1950 m (6400') most of the landscape is mantled I think I found the answer to the question of why men by dense forests and huckleberry thickets. Ten radial stake everything to reach these peaks, yet obtain no glaciers and the summit icecap today cover only about visible reward for their exhaustion... Man's greatest 2.5 percent (16 km2) of the cone, but in latest Pleis experience-the one that brings supreme exultation tocene time (25-11 ka) as much as 80 percent of Mount is spiritual, not physical. It is the catching of some Adams was under ice. The volcano is drained radially vision of the universe and translating it into a poem by numerous tributaries of the Klickitat, White Salmon, or work of art ... Lewis, and Cis pus Rivers (figs. 1, 2), all of which ulti William 0. Douglas mately flow into the Columbia. Most of Mount Adams and a vast area west of it are Of Men and Mountains administered by the U.S. Forest Service, which has long had the dual charge of protecting the Wilderness Area and of providing a network of logging roads almost INTRODUCTION everywhere else. The northeast quadrant of the moun One of the dominating peaks of the Pacific North tain, however, lies within a part of the Yakima Indian west, Mount Adams, stands astride the Cascade crest, Reservation that is open solely to enrolled members of towering 3 km above the surrounding valleys. -
Recco® Detectors Worldwide
RECCO® DETECTORS WORLDWIDE ANDORRA Krimml, Salzburg Aflenz, ÖBRD Steiermark Krippenstein/Obertraun, Aigen im Ennstal, ÖBRD Steiermark Arcalis Oberösterreich Alpbach, ÖBRD Tirol Arinsal Kössen, Tirol Althofen-Hemmaland, ÖBRD Grau Roig Lech, Tirol Kärnten Pas de la Casa Leogang, Salzburg Altausee, ÖBRD Steiermark Soldeu Loser-Sandling, Steiermark Altenmarkt, ÖBRD Salzburg Mayrhofen (Zillertal), Tirol Axams, ÖBRD Tirol HELICOPTER BASES & SAR Mellau, Vorarlberg Bad Hofgastein, ÖBRD Salzburg BOMBERS Murau/Kreischberg, Steiermark Bischofshofen, ÖBRD Salzburg Andorra La Vella Mölltaler Gletscher, Kärnten Bludenz, ÖBRD Vorarlberg Nassfeld-Hermagor, Kärnten Eisenerz, ÖBRD Steiermark ARGENTINA Nauders am Reschenpass, Tirol Flachau, ÖBRD Salzburg Bariloche Nordkette Innsbruck, Tirol Fragant, ÖBRD Kärnten La Hoya Obergurgl/Hochgurgl, Tirol Fulpmes/Schlick, ÖBRD Tirol Las Lenas Pitztaler Gletscher-Riffelsee, Tirol Fusch, ÖBRD Salzburg Penitentes Planneralm, Steiermark Galtür, ÖBRD Tirol Präbichl, Steiermark Gaschurn, ÖBRD Vorarlberg AUSTRALIA Rauris, Salzburg Gesäuse, Admont, ÖBRD Steiermark Riesneralm, Steiermark Golling, ÖBRD Salzburg Mount Hotham, Victoria Saalbach-Hinterglemm, Salzburg Gries/Sellrain, ÖBRD Tirol Scheffau-Wilder Kaiser, Tirol Gröbming, ÖBRD Steiermark Schiarena Präbichl, Steiermark Heiligenblut, ÖBRD Kärnten AUSTRIA Schladming, Steiermark Judenburg, ÖBRD Steiermark Aberg Maria Alm, Salzburg Schoppernau, Vorarlberg Kaltenbach Hochzillertal, ÖBRD Tirol Achenkirch Christlum, Tirol Schönberg-Lachtal, Steiermark Kaprun, ÖBRD Salzburg -
Hoyas Hidrográficas De Chile: Segunda Región
HOYAS HIDROGRÁFICAS DE CHILE: SEGUNDA REGIÓN REALIZADO POR: HANS NIEMEYER F. HOVA DEL RlO LOA La hoya hidrográfica del río Loa~ con una superf! cie tota~'de 33 570 km2 , se desarrolla en el tercio norte de la IIa R~ gión de Chile, entre latitudes extremas 20Q52' y 22Q57' L.S. ylongit~ des 68QOO' y 7oQ02' L.o. El río Loa nace en la falda norte del Vn. Mi ño~ en los Ojos del Hiño, casi en los límites entre la la y IIa Regio nes de Chile, en 21Q15' L.S. y 70Q L.O~ Su longitud total se acerca a 440 km. A pesar de su extensa hoya, los recursos h!dricos provienen de la cuenca alta que comprende alrededor del 20% de la su~ perficie total. Con curso aproximadamente norte-sur~ el Loa reco rre casi 150 km en un profundo cañón de altura variable, desde su nací miento hasta el oasis de Chiu ~hiu, pueblo que se levanta en su margen izquierda. En este trayecto recibe sus dos tributarios más importantes que le caen del este: el río San Pedro o Inacaliri y el río Salado. En Chiu Chiu dobla su curso sensiblemente hacia el oeste para alcanzar en un recorrido de 115 km el punto denominado Chacance. En él se le reúne por la derecha el río San Salvador. En Chacance,el Loa toma franca di= recci6n sur-norte hasta fertilizar el oasis de Quillagua, despu~s de una trayectoria de 80 km. A partir de Quillagua el Loa describe un gran arco y luego desemboca en el Pacífico~ en Caleta Huel~n, despu~8 de trasponer el macizo costero en un tajo profundo~ de más de 500 m de al tura.