Quantcast
Channel: Phys.org news tagged with:seismological
Browsing latest articles
Browse All 30 View Live

Haiti should brace for more devastating quakes: study

The 2010 earthquake that devastated southern Haiti may have opened a new era of seismic activity and residents should brace for more massive temblors, said a US study on Thursday.

View Article



Pattern of large earthquakes on San Jacinto fault identified with help of LiDAR

The San Jacinto Fault (SJF) Zone is a seismically active, major component of the overall southern San Andreas Fault system. Researchers from San Diego State University (SDSU) and U.S. Geological Survey...

View Article

Warning signs from ancient Greek tsunami

In the winter of 479 B.C., a tsunami was the savior of Potidaea, drowning hundreds of Persian invaders as they lay siege to the ancient Greek village. New geological evidence suggests that the region...

View Article

Scientists compile first study of potential for tsunamis in northwestern...

Using studies that span the last three decades, scientists at UC Santa Barbara have compiled the first evidence-based comprehensive study of the potential for tsunamis in Northwestern California. The...

View Article

Digging up lessons from an ancient quake

Beth Arcos picked her way through muck and pickleweed just west of the Bremerton waterfront, on the trail of an ancient earthquake and tsunami.

View Article


Homing in on a potential pre-quake signal

In a new analysis of the 2004 magnitude 6.0 Parkfield earthquake in California, David Schaff suggests some limits on how changes measured by ambient seismic noise could be used as a pre-earthquake...

View Article

Italy quake verdict puts all science on trial: seismologists

Seismologists said they were horrified after six of their colleagues were sentenced to six years in jail for manslaughter Monday on charges of underestimating the risk of an earthquake that struck...

View Article

2011 Virginia quake triggered landslides at extraordinary distances

The 2011 Mineral, Virginia M-5.8 earthquake was felt over an extraordinarily large area. A new study details landslides triggered by the earthquake at distances four times greater and over an area 20...

View Article


6.5-magnitude quake rattles Guatemala's coast

A 6.5-magnitude earthquake shook Guatemala's Pacific coastline on Sunday, just four days after a major quake killed dozens and left thousands without homes in the region.

View Article


Peru's capital highly vulnerable to major quake

(AP)—The earthquake all but flattened colonial Lima, the shaking so violent that people tossed to the ground couldn't get back up. Minutes later, a 50-foot (15-meter) wall of Pacific Ocean crashed into...

View Article

Underwater robots help discover hidden faults

(Phys.org)—Hidden beneath ocean waves and masked by sand and mud on the seafloor, underwater faults are notoriously difficult to see and even more difficult to study. As a result, geologists struggle...

View Article

Shedding light on the earthquake situation

Researchers from the Swiss Seismological Service have worked together with the Seismology and Geodynamics group at ETH Zurich and with local support in Bhutan to install a temporary seismological...

View Article

Helping to forecast earthquakes in Salt Lake Valley

Salt Lake Valley, home to the Salt Lake City segment of the Wasatch fault zone and the West Valley fault zone, has been the site of repeated surface-faulting earthquakes (of about magnitude 6.5 to 7)....

View Article


Superstorm Sandy shook the US: 'Standing waves' in Atlantic caused seismicity...

When superstorm Sandy turned and took aim at New York City and Long Island last October, ocean waves hitting each other and the shore rattled the seafloor and much of the United States – shaking...

View Article

Mine disaster: Hundreds of aftershocks

A new University of Utah study has identified hundreds of previously unrecognized small aftershocks that happened after Utah's deadly Crandall Canyon mine collapse in 2007. The aftershocks suggest the...

View Article


Measuring the hazards of global aftershock

The entire world becomes an aftershock zone after a massive magnitude (M) 7 or larger earthquake—but what hazard does this pose around the planet? Researchers are working to extend their earthquake...

View Article

Calculating tsunami risk for the US East Coast

The greatest threat of a tsunami for the U.S. east coast from a nearby offshore earthquake stretches from the coast of New England to New Jersey, according to John Ebel of Boston College, who presented...

View Article


'Caldas tear' resolves puzzling seismic activity beneath Colombia

Colombia sits atop a complex geological area where three tectonic plates are interacting, producing seismicity patterns that have puzzled seismologists for years. Now seismologists have identified the...

View Article

Cosmic quiver: Saturn's vibrations create spirals in rings

(Phys.org) —Astronomers know that gravity from Saturn's various moons tug at the planet's rings and make spirals in them. But the catalyst for certain spiral patterns has been difficult to pin down....

View Article

Revised location of 1906 rupture of San Andreas Fault in Portola Valley

New evidence suggests the 1906 earthquake ruptured the San Andreas Fault in a single trace through Portola Village, current day Town of Portola Valley, and indicates a revised location for the fault...

View Article

Muddy island formed by Pakistan quake may not last (Update)

Alongside the carnage of Pakistan's massive earthquake came a new creation: a small island of mud, stone and bubbling gas pushed forth from the seabed.

View Article


Tiny sensor used in smart phones could create urban seismic network

A tiny chip used in smart phones to adjust the orientation of the screen could serve to create a real-time urban seismic network, easily increasing the amount of strong motion data collected during a...

View Article


Dynamic stressing of a global system of faults results in rare seismic silence

In the global aftershock zone that followed the major April 2012 Indian Ocean earthquake, seismologists noticed an unusual pattern – a dynamic "stress shadow," or period of seismic silence when some...

View Article

Experts defend operational earthquake forecasting, counter critiques

Experts defend operational earthquake forecasting (OEF) in an editorial published in the Seismological Research Letters (SRL), arguing the importance of public communication as part of a suite of...

View Article

Wastewater injection is culprit for most quakes in southern Colorado and...

The deep injection of wastewater underground is responsible for the dramatic rise in the number of earthquakes in Colorado and New Mexico since 2001, according to a study to be published in the...

View Article


Seabed samples rewrite earthquake history near Istanbul

Located in the Marmara Sea, major earthquakes along the North Anatolian Fault (NAF) system have repeatedly struck what is current-day Istanbul and the surrounding region, but determining the recurrence...

View Article

Magma intrusion is likely source of Columbia-Ecuador border quake swarms

The "seismic crisis" around the region of the Chiles and Cerro Negro de Mayasquer volcanoes near the Columbia-Ecuador border is likely caused by intruding magma, according to a report by R. Corredor...

View Article

More Americans at risk from strong earthquakes, says new report

More than 143 million Americans living in the 48 contiguous states are exposed to potentially damaging ground shaking from earthquakes, with as many as 28 million people likely to experience strong...

View Article

The 2011 Tohoku-Oki earthquake—felt from space

For the first time, a natural source of infrasonic waves of Earth has been measured directly from space—450 kilometers above the planet's surface. The source was the massive 2011 Tohoku-Oki earthquake...

View Article



Enhancing earthquake early warning in the Pacific Northwest

Earthquake Early Warning (EEW) systems depend on speed and accuracy in delivering seismic monitoring data to areas at risk from a quake or volcanic eruption. Paul Bodin of the University of Washington...

View Article
Browsing latest articles
Browse All 30 View Live




Latest Images