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Earthquakes / Tsunamis

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On this day in 1931 UK struck by M6.1 earthquake (dogger bank in North Sea), the largest instrumentally recorded. Market Street, San Francisco after the earthquake, 1906. Missing from President Trump's budget: Funds for California's earthquake early warning system. President Trump’s budget would eliminate federal funding for an earthquake early warning system being developed for California and the rest of the West Coast which, if enacted, probably would kill the long-planned effort.

Missing from President Trump's budget: Funds for California's earthquake early warning system

The budget proposal for the year ending in September 2018 also seeks to eliminate U.S. funding for critical tsunami-monitoring stations in oceans and reduce funds for a next-generation weather forecasting system. Scientists said the loss of federal funding would derail the early warning system, which officials hope would one day send public earthquake alerts to smartphones seconds or even minutes before a temblor. “It probably would kill the early warning system if we thought there were no more funding coming from the U.S. Geological Survey,” said John Vidale, director of the Pacific Northwest Seismic Network and a seismology professor at the University of Washington.

#Nowcasting may help forecast big #earthquakes in 53 major cities. Via @newscientist. How do you make a building earthquake resistant? *****After years of planning, California is likely to roll out its earthquake warning system next year / Holy grail of earthquake prediction? California will likely roll out a limited public earthquake early warning system sometime next year, researchers building the network say.

*****After years of planning, California is likely to roll out its earthquake warning system next year / Holy grail of earthquake prediction?

New earthquake sensing stations are being installed in the ground, software is being improved, and operators are being hired to make sure the system is properly staffed, Caltech seismologist Egill Hauksson said at a joint meeting of the Japan Geoscience Union and American Geophysical Union. ‘Rapid expansion’ The new sensor stations are particularly important for rural Northern California, where gaps in the network have put San Francisco at risk for a slower alert if an earthquake begins on the San Andreas fault near the Oregon border and barrels down to the city. Last summer, California lawmakers and Gov. Tsunami Travel Times to Coastal Locations. Getting Ready for the Big One. Winter 2017 By Jim Baumann, Esri Writer This article as a PDF.

Getting Ready for the Big One

On June 7, 2016, at 8:03 a.m., a 9.0 magnitude earthquake, centered 70 miles off the Oregon coast, violently shook the Pacific Northwest from Northern California to southern Canada for about five minutes. Because the earthquake's epicenter occurred deep in the crustal plates beneath the Pacific Ocean, tsunami waves as high as 40 feet formed and struck the coast about 20 minutes after the initial earthquake jolt. The other side of this wall of water surged west, taking 10 hours to reach the Japanese coast 5,000 miles away. Agencies in the Pacific NW are using #GIS to prep for a major earthquake. @ArcUser. *****The World Stress Map – 2016 Release. The latest version of the World Stress Map Project has been officially released this week.

*****The World Stress Map – 2016 Release

This is the 30th anniversary of the project, and sees a big boost in data over the prior release in 2008. The latest version of the World Stress Map contains 42870 stress data records, which is approximately double that of the prior release, and about 10 times more than the first release over 25 years ago.The World Stress Map Project started back in 1986, and was the brainchild of Professor Karl Fuchs and the International Lithosphere Programme, who asked Mary-Lou Zoback to head up a 5-year global effort to map out the state of tectonic stress in the Earth’s lithosphere. *****From where will the next big earthquake hit the city of Istanbul? - Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences. From where will the next big earthquake hit the city of Istanbul?

*****From where will the next big earthquake hit the city of Istanbul? - Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences

(Figure: C. Wollin, GFZ) The city of Istanbul is focus of great concern for earthquake researchers. *****From where will the next big earthquake hit Istanbul? Now published in Geophysical Journal International. *****How do you make a building earthquake-resistant? VIDEO. Scientists Look to Skies to Improve Tsunami Detection. U.S. coastal areas where freshwater and seawater mix unseen below ground, making them vulnerable to ocean and/or drinking water contamination.

Scientists Look to Skies to Improve Tsunami Detection

Dark blue areas are vulnerable to land-to-sea pollution; pink to sea-to-land pollution; light blue to both. Areas may appear larger for visibility purposes. Mount Everest's famous Hillary Step destroyed, mountaineers confirm. Image copyright STR/AFP/Getty Images A famous feature of Mount Everest has collapsed, potentially making the world's highest peak even more dangerous to climbers.

Mount Everest's famous Hillary Step destroyed, mountaineers confirm

Mountaineers said the Hillary Step may have fallen victim to Nepal's devastating 2015 earthquake. The near-vertical 12-metre (39 ft) rocky outcrop stood on the mountain's southeast ridge, and was the last great challenge before the top. It was named after Sir Edmund Hillary, who was the first to scale it in 1953. BBC Radio 4 - Quake - The amazing technology that helps us survive disasters. BBC Radio 4 - Quake - 12 surprising facts about earthquakes. *****How the Tohocu tsunami spread across the Pacific Ocean in 2011. The World Stress Map – 2016 Release. Tsunami study challenges long-held formation theory. Leicester 3 Watford 0 , small footyquakes recorded on @LEGOIdeas seismometer. Pourquoi les bâtiments s'écroulent-ils lors des séismes ? - Vicki V. May. *****Anatolian Fault, Turkey: In this week’s classic #openaccess paper, Alper Gürbüz looks at the geometric characteristics of pull-apart basins.

Dataset. Description This animation shows every recorded earthquake in sequence as they occurred from January 1, 2001, through December 31, 2015, at a rate of 30 days per second.

dataset

Index. *****British Earthquake Hotspots Revealed In Groundbreaking Interactive Map. *****Just another earthquake: Sismo mayor Zona central Chile. Piso 19 - 24 de abril 2017. Updated cross section for #Valparaiso seismic sequence. USGS mechanism and centroid depth indicate rupture along subduction megathrust fault. 6.7 earthquake here at Holiday Inn - Santiago Airport. *****Do you know your faults? Plate Motions and Faults (student presentation) *****Grim Photos of the 1906 San Francisco Quake, Mapped - CityLab. See the disaster that transformed the city from a galaxy of perspectives.

*****Grim Photos of the 1906 San Francisco Quake, Mapped - CityLab

Of all the horrible scenes that poured out of the 1906 San Francisco earthquake—which killed roughly 3,000 people and injured 225,000 more—one of a refugee camp at the old Hamilton Square on April 19, a day after the quake, haunts Woody LaBounty. “There’s a guy actually sweeping the grass next to two women with a shocked, middle-distance stare,” says LaBounty, executive director at the Western Neighborhoods Project. “Shock, bewilderment, uncertainty in many faces.” For LaBounty, it’s a reminder that the famous disaster was just that—a catastrophe that left human lives as well as buildings in ruins.

Could Pulses in Earth's Magnetic Field Forecast Earthquakes? In the days leading up to some recent moderate-sized earthquakes, instruments nearby have picked up brief low-frequency pulses in Earth’s magnetic field.

Could Pulses in Earth's Magnetic Field Forecast Earthquakes?

A few scientists have proposed that such pulses, which seemed to become stronger and more frequent just before the earthquakes occurred, could serve as an early warning sign for impending seismic activity. Now, a team has come up with a model for how these magnetic pulses might be generated, though some critics say they may have a humanmade origin. Brief fluctuations in Earth’s magnetic field have been detected before many earthquakes in the past 50 years, says Friedemann Freund, a crystallographer at San Jose State University in California.

*****How the Japan tsunami spread across the Pacific Ocean in 2011. *****Danger zones: mapping Europe’s earthquakes. A deeper understanding and better communication of earthquake risk has been a major challenge in geosciences for a long time. The Global Earthquake Model initiative aims to become the world’s most complete source of earthquake risk resources and works towards a globally accepted standard for risk assessment. As part of this collaborative initiative, the EU-funded SHARE (‘Seismic Hazard Harmonization in Europe’) project helped in generating the first consistent regional seismic hazard model for Europe (including Turkey). The model, published in 2013, overcomes the limitation of national borders and includes a thorough quantification of the uncertainties. Seismic hazard data collected for this model consisted of records from more than 30,000 earthquakes with a magnitude of 3.5 and above on the Richter scale which occurred since the year 1000, as shown in the smaller map in this feature.

Map showing local ground acceleration as quake propagated. (via @eqalarm) Never faced an #earthquake? Then @AFADTurkey's truck simulator shows you how it feels (based on mag7.4 1999 shake). #EFDRR #MEXICOGP2017. *****Tsunami Preparedness Week! (GIF) "Know your zone" and prepare a kit for your family. Varied #gender+#age impacts of #disasters were starkly clear in 2004 #IndianOcean #tsunami. Very telling slide at #EFDRR. #MEXICOGP2017 #DRR.

The 1985 #Mexico #Earthquake triggered a global drive to make #hospitals safe from #disasters #MEXICOGP2017 #DRR. This is how #europe would look if all the countries were scaled based on the #earthquake #hazard. *****Inertia: A beautiful visualization of the physics of inertia using leaves. After 2 quiet weeks, tremors have resumed. Will they continue to Canada? Will slow slip follow? TBC in the next episode of ETS: Cascadia. *****The bangs, crackles and hums of Earth's seismic orchestra. You are at a classical music concert. There is an orchestra with three main sections. High up at the back, the percussion section has one very loud, large and moody-looking drum that gets struck very rarely. A handful of triangles produce occasional quieter “tings”. Further down, in the middle, there is a small band of violinists, but they are playing the strings so slowly the audience can barely hear them.

Down at the front, a family of double bass instruments produces low-pitched, gentler hums from time to time. This somewhat unconventional orchestra is like a type of tectonic plate boundary known as a subduction zone. At the turn of the century, scientists discovered a new type of “sound” produced at subduction zones, known as Episodic Tremor and Slip (or ETS for short). Regions of the plate boundary that produce tremor and slow slip events are of vital interest. *****Tsunami Climbing: Incredible video of ship heading into wave in Japan. Currently exploring ways to visualise over 10,000 earthquakes that have hit the UK since 1970. Data. The King Power stadium was rocking tonight as @LCFC beat Sevilla 2-0 in the champions league. @ahageog a great resource. In @LivingAtlas from @Esri is an exercise to help students to see how pop. density and quake frequency match up. *****UK Risk Register: How climate change in arctic could cause tsunamis in UK Our @drsuedaw.

The search for the earthquake nucleus. Tricky business levelling a seismometer. Seismic record of commuter trains in a high school 200m away from the tracks. La Llagosta (Barcelona). @ICTJA_CSIC @Schoolseismo. Football quakes at the King Power again as @LCFC win 3-1 against Hull. Away fans make noise but do not register as #footyquakes. Sweet ! Drinkwater-quake picked up on Hazel School Lego seismometer as Leicester go 2-0 up against Liverpool. TAM is very close to "antipode" - other side of Earth from Fiji earthquake, so seismic waves arrive from all directions at almost same time. Insight into a physical phenomenon that leads to earthquakes. IMAGE: Aceh, Indonesia, following tsunami in 2004 and today. Massive ancient undersea landslide discovered off the Great Barrier Reef. Evidence of a massive undersea landslide that took place more than 300,000 years ago has been discovered off the Great Barrier Reef.

Scientists discovered remains of the slip off Innisfail on Australia’s north Queensland coast. Large blocks, or knolls, and smaller blocks were found scattered up to a depth of 1,350 metres, more than 30km from the main remnants of the slip known as the Gloria Knolls slide. Scientists unearthed the remnants from the sediment collapse, estimated at 32 cubic kilometres in volume, while conducting 3D multibeam mapping on the deep sea floor.

“We were amazed to discover this cluster of knolls,” James Cook University scientist Dr Robin Beam said. “In an area of the Queensland Trough that was supposed to be relatively flat were eight knolls, appearing like hills, with some over 100m high and 3km long.” Modelling earthquake resistant buildings (GIF) The Fukushima Cleanup Will Take Generations. The miracle pine - single tree that survived the 2011 Japanese tsunami turned into monument Rikuzentakata, Iwate, Japan. A #DisasterPreparedness Drill was held for foreign residents! Participants experienced disaster simulations and learned emergency protocol. *****NOAA videos re preparation for tsunamis. Tsunamis: Be Prepared and Stay Safe! Tsunamis: ¡Prepárate y mantente a salvo! Galu Lolo: Sauni nei ma tapena aua lou saogalemu!

Storm Surge Fast Draw Storm Surge Fast Draw - Spanish Version Tools for Resilience ECON 120 Video - Externalities ECON 120 Video - Value ECON 120 Video - Indicators ECON 120 Video - Ecosystem Services ECON 120 Video - Ocean Economy Intro to Data Registry Using Digital Coast Web Map Services to Develop Mashups Marketing Storm Surge Ocean Dimensions Tidal Flooding Animation Green Infrastructure Protective Services Coastal Management Fellowship. The Great Quake and the Great Drowning. In the year 1700, on January 26, at 9:00 at night, in what is now northern California, Earthquake was running up and down the coast. Jenga - impossible. 1556 #OTD, the deadliest #earthquake in history occurred in northern China (estimated >800,000 victims) Seismo peeps can you help me identify phase arrival at GB stations (CWF ESK) about 3 minutes before IASP91 reports PKiKP ?

Italy avalanche: A cruel coincidence. Image copyright Reuters. Italy earthquakes: Why the country gets so many of them, and how to survive one. Once again, Italy has been shaken by deadly earthquakes. Tweets with replies by GeoBlogs (@GeoBlogs) Bang Goes the Theory s04ep01 Japanese earthquake special WnA. Promoting marsquakes and football-quakes at the same time at #geoliv2017 conference in Liverpool.

@bobdigby @mreddavies Excellent example of a government educating the public on tsunamis in Matamata, New Zealand #alevelgeography. On this day 162 years ago: the Dec. 23 1854 M8.4 Tokai earthquake, 1st of Ansei great quakes. Followed the next day by M8.4 Honshu quake. *Creating Earthquake Heat Maps: Temperature Spikes Leave Clues in the Rock. Lamont Associate Research Professor Heather Savage explains how scientists are using biomarkers and temperature to locate past earthquake activity.

When you rub your hands together to warm them, the friction creates heat. The same thing happens during earthquakes, only on a much larger scale: When a fault slips, the temperature can spike by hundreds of degrees, high enough to alter organic compounds in the rocks and leave a signature. 'Elephant Rock' in Taranaki truncated. Part of an iconic rock formation in Taranaki, known as Elephant Rock, has collapsed, with the elephant's 'trunk' completely wiped out.

Joint Australian Tsunami Warning Centre. Live Earthquakes Map. 'Smart boulders' record huge underwater avalanche. Earthquakes of the First 15 Years of the 21st Century. Great use of science! Seismic trace at Hazel School homemade sensor in @Leicester_News detects @vardy7 hat-trick and @10_kingy goal as @lcfc beat @ManCity 4-2. Earthquake Statistics. Watching California M6.8 #earthquake waves appear on cool global monitor swarm software by @alaska_avo.

Undersea landslides threaten Britain with tsunamis. NOAA Science on a Sphere - earthquakes from 2001 through 2015 #geomatics #geology. Can Asteroids, Meteorites or Man-Made Explosions Cause Tsunamis? - International Tsunami Information Center. Fortunately, for mankind, it is indeed very rare for a meteorite or an asteroid to reach the earth. Although no documented tsunami has ever been generated by an asteroid impact, the effects of such an event would be disastrous. Index.html?webmap=5bc970ba86c743d497bcdab66b576ac6&extent=3.3699,26.7786,27.0124,53. Io Non Rischio LA PERICOLOSITÀ SISMICA La pericolosità sismica di un territorio è la probabilità che in una data area ed in un certo intervallo di tempo si verifichino effetti sismici di entità uguale o superiore ad un certo livello.

La mappa della pericolosità sismica del territorio italiano è stata realizzata dall’Ingv a partire dall’analisi dei terremoti del passato, dalle informazioni geologiche disponibili e dalle conoscenze rispetto al modo in cui si propagano le onde dall’ipocentro di un terremoto all’area in esame. Giant underwater landslide in the Kaikōura Canyon. As well as triggering tens of thousands of landslides on land, the magnitude 7.8 Kaikōura earthquake also caused a massive underwater landslide. It moved down the deep canyon system that lies just offshore, generating a turbulent turbidity current of mud, sand and water that was detected more than 300km away, off the coast of Hawke’s Bay.

Powerful Earthquake Exposes Seabed Near Kaikoura. On November 13, 2016, a powerful earthquake jolted the northeastern coast of New Zealand’s South Island. Turkish researchers demonstrated that carbon fiber could prevent the collapse of buildings during a major earthquake. #eqnz changes course of river (Kekerengu fault: Offset stream) Amrai Pari: If you're indoors during an earthquake! An epic earthquake survival story... Geologist, Richard Phillips rescued this little lamb after five days down a fault in Waiau. #EQNZ. Fault rupture #eqnz Nov 2016.

Friday's #Geology 101 - Book vs Reality: Descending Slab. We can "see" them in seismic profile, outlined by earthquake foci. #tectonics. School seismometer system on display @rutlandmuseum , great data except when kids using the jump-mat next to it ! Huge earthquake & tsunami hits the area around Seattle every 243 years. The last one was 316 years ago.

UN Women raise issue of gender in disasters like #tsunami which kill more women than men #afrp2016 #switch2sendai. Japan tsunami triggers rare tidal waves. A mega-quake stretching from L.A. to San Francisco would devastate California, with $289 billion in...