Fault lines

By ICLR | Earthquake-related news from the Institute for Catastrophic Loss Reduction (ICLR).

Small earthquakes can increase risk of the Big One. Now, seismologists say they can create public quake forecasts

One day, next to the traffic map and weather forecast on your smartphone, seismologist Thomas H. Jordan envisions an app that you can check to see when the chances of a major earthquake in California rise.<p>Jordan, director of the Southern California Earthquake Center, is quick to make clear this is …

Earthquakes

2011 Tohoku-oki earthquake: Results from seismic reflection data

A striking finding of the 2011 Tohoku-oki earthquake (Mw 9.0) is that more than 50 meters of coseismic fault slip reached the trench axis. In …

Earthquakes

The losses that come after the earthquake: Devastating and costly

Earthquakes: Nature's most unpredictable and one of her most devastating natural disasters. When high intensity earthquakes strike they can cause …

Earthquakes

CoreLogic Primer on How Earthquake Loss Modeling Benefits the Insurance Industry

The insurance industry primarily utilizes earthquake data through the use of probabilistic risk models.<p>Ultimately, the goal of using a probabilistic …

How friction evolves during an earthquake

By simulating earthquakes in a lab, engineers at Caltech have documented the evolution of friction during an earthquake—measuring what could once …

Earthquakes

How a 9.2 earthquake in Alaska in 1964 changed our understanding is explained in 'The Great Quake'

Geological tumult is all around us in the American West, in our vertiginous topography and in our heads — fear of the Big One. But a little over half a century ago there came what, befitting its magnitude and locale — in the “Great Land” of the Aleut — may be called the Great One. Henry Fountain’s …

Earthquakes

What's Causing So Many Earthquakes in Oklahoma?

A magnitude-4.2 earthquake hit just outside Edmond, Oklahoma, last night (Aug. 2) at 9:56 p.m. local time — the fifth significant temblor to shake …

Earthquakes

Seismic Zone Off Alaska Could Trigger Massive Earthquake and Tsunami

A so-called seismic zone off the coast of Alaska could trigger deadly tsunamis like the one that caused the Fukushima nuclear disaster in Japan in …

Earthquakes

Watch The Earth Crack: Animated Map Shows Every Earthquake For 15 Years

The National Ocean and Atmospheric Administration (NOAA) released an animation last year that displays every recorded earthquake between January 1, 2001, and December 31, 2015. Despite the fact that this video was released several months ago, it’s a remarkable way to visualize Earth’s plate …

Geology

Slow Earthquakes Occur Continuously in the Alaska-Aleutian Subduction Zone

UC Riverside seismologists studying earthquakes in the seismically and volcanically active Alaska-Aleutian subduction zone have found that “slow …

Earthquakes

Earthquake physics on multiple scales

Scientists are working hard to determine the how, why and when of earthquakes, but getting answers is a complex team effort, says a Victoria …

Earthquakes

Earthquake fault maps for Beverly Hills, Santa Monica and other Westside areas could bring development restrictions

Officials on Thursday released new draft maps showing the locations of earthquake faults in Santa Monica, Beverly Hills and the Westside, raising the prospect of development restrictions in areas directly above the fissures.<p>The earthquake faults run along some of Southern California’s most …

Earthquakes

Eastern Canada could be out billions in the event of an earthquake, report finds

People living in Ontario, Quebec and Atlantic Canada are ill-prepared for an earthquake – unlike their counterparts in the West – despite a long history of seismic activity in those areas, according to a report from Swiss Re, a reinsurance company.<p>Swiss Re predicts $10.6-billion in private …

Canada

A M=7 aftershock is 300 times more likely in the week after a M=7 mainshock in new study

By David Jacobson and Ross Stein, Temblor<p>Tomorrow, a new study on the California earthquake hazard model will be published, which shows, through …

Earthquakes

The Fragile Ground Beneath 66 Million Barrels of Oil

The Fragile Ground Beneath 66 Million Barrels of OilWastewater from oil drilling is triggering earthquakes, and no one can predict where they will …

Earthquakes

Snow and rain tug on earthquake faults in California

View the animationWinter weather brings seismic tremors. A new study reveals how water buildup and runoff throughout the year can increase stress …

Earthquakes

Weekend earthquakes along the San Andreas Fault mark tips of great historic quakes

By David Jacobson, Temblor<p>Over the weekend, there were earthquakes on either end of the San Andreas Fault system, highlighting the tips of two great …

The World's Most Powerful Earthquake Ended With An Eruption And A Human Sacrifice

It’s not surprising that the most powerful natural disasters in the world have often been signs of impending doom; indications that the gods up above, or the demons down below, are unhappy. As a result, offerings have often been made to the fires of a volcano, the depths of the sea, and the chasms …

Anthropology

This earthquake fault in northeast L.A. and Pasadena isn't well known, but experts say it poses dangers

California officials have mapped a new stretch of an earthquake fault through northeast Los Angeles — a fault that could cause major damage in the heart of the metro area.<p>The Raymond fault has long been known as a potentially dangerous fault for Los Angeles and the San Gabriel Valley, and caused …

Earthquakes

More than 2,100 buildings are already being retrofitted under L.A.'s earthquake safety law

Eighteen months after Los Angeles passed the nation’s most sweeping seismic retrofit law, more than 15% of the city’s earthquake-vulnerable wood apartment buildings have begun the process of retrofits.<p>More than 2,100 buildings have either been retrofitted or are in the process of being strengthened …

Earthquakes

Novel Seismic Software Sheds Light on Earthquake Paths

ArticleResearchers achieve record performance in new seismic simulations.Contributed Author: Alexander Breuer, Ph.D., University of California, San …

Research

Deep in a South African gold mine, scientists drill for the heart of an earthquake

Shaft gives a 3-kilometer head start to drillers seeking the aftermath of a "fresh" rupture

Earthquakes

Researchers drill deep to understand why the Sumatra earthquake was so severe

An international team of scientists has found evidence suggesting the dehydration of minerals deep below the ocean floor influenced the severity of …

Earthquakes

Nowcasting may help forecast big earthquakes in 53 major cities

Records of small quakes can help us gauge how close we are to really big ones, using a technique borrowed from economics and finance

Earthquakes

Californians need to be so afraid of a huge earthquake that they take action, scientists say

Fear of earthquakes is part of life in California.<p>But people experience this anxiety in different ways. For some, the fear prompts them to take steps to protect themselves: strapping down heavy furniture, securing kitchen cabinets and retrofitting homes and apartments.<p>For others, the fear prompts …

Earthquakes

After years of planning, California is likely to roll out its earthquake warning system next year

California will likely roll out a limited public earthquake early warning system sometime next year, researchers building the network say.<p>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 …

Earthquakes

A M~8.3 Chile earthquake has become more likely

<i>By David Jacobson and Ross Stein, Temblor</i><p>Updated: 3 p.m. (PDT) 1 May 2017<p>Since 22 April 2017, an earthquake swarm has been in progress offshore the …

New model could help predict major earthquakes

A Nagoya University-led team reveals the mechanisms behind different earthquakes at a plate boundary on the west coast of South America, shedding …

Earthquakes

Nepal's earthquake disaster: Two years and $4.1bn later

Despite the billions pledged, the majority of Nepalis affected by the earthquake still don't have proper housing.<p>On April 25, 2015, a powerful earthquake killed nearly 9,000 people and destroyed more than 824,000 homes in Nepal. Shortly after, the country's Reconstruction Authority published a …