News tagged with earthquake fault zone

Tremors on southern San Andreas Fault may mean increased quake risk

Space & Earth / Earth Sciences

Jul 09, 2009 | 4.2 / 5 (11) | 4

(PhysOrg.com) -- Increases in mysterious underground tremors observed in several active earthquake fault zones around the world could signal a build-up of stress at locked segments of the faults and presumably ...

Underwater gas may hold clues on Turkey quake risk

Space & Earth / Earth Sciences

Dec 15, 2009 | 5 / 5 (2) | 0

Natural gas that lies under Turkey's Marmara Sea close to Istanbul could provide advance warning of an earthquake experts believe will hit the country's largest city, scientists said on Tuesday.

Tremors between slip events: More evidence of great quake danger to Seattle

Space & Earth / Earth Sciences

Dec 15, 2009 | 4.4 / 5 (7) | 0

(PhysOrg.com) -- For most of a decade, scientists have documented unfelt and slow-moving seismic events, called episodic tremor and slip, showing up in regular cycles under the Olympic Peninsula of Washington state and Vancouver ...

Going vertical: Fleeing tsunamis by moving up, not out

Space & Earth / Earth Sciences

Dec 14, 2009 | 4.7 / 5 (3) | 0

(PhysOrg.com) -- In the minutes after a strong earthquake struck offshore of the Indonesian city of Padang on Sept. 30, fears of a tsunami prompted hundreds of thousands of residents to evacuate the coastal ...

Yellowstone's plumbing exposed

Space & Earth / Earth Sciences

Dec 14, 2009 | 4.8 / 5 (39) | 17

(PhysOrg.com) -- The most detailed seismic images yet published of the plumbing that feeds the Yellowstone supervolcano shows a plume of hot and molten rock rising at an angle from the northwest at a depth ...

New study cites lower rate of quakes along some subduction zones

Space & Earth / Earth Sciences

Dec 04, 2009 | not rated yet | 0

Most earthquakes occur along fault lines, which form boundaries between two tectonic plates. As the relative speed of the plates around a fault increases, is there a corresponding increase in the number of earthquakes produced ...

Samoan Tsunami wave was 46 feet high

Space & Earth / Earth Sciences

Dec 04, 2009 | 4.7 / 5 (7) | 0

(AP) -- The tsunami that killed more than 200 people in the Samoan islands and Tonga earlier this year towered up to 46 feet (14 meters) high - more then twice as tall as most of the buildings it slammed into, scientists ...

Small faults in Southeast Spain reduce earthquake risk of larger ones

Space & Earth / Earth Sciences

Nov 25, 2009 | not rated yet | 0

A team of Spanish scientists, studying recent, active deformations in the Baetic mountain range, have shown that the activity of smaller tectonic structures close to larger faults in the south east of the ...

Using new technique, scientists find 11 times more aftershocks for 2004 quake

Space & Earth / Earth Sciences

Nov 23, 2009 | 4.5 / 5 (2) | 0

(PhysOrg.com) -- Using a technique normally used for detecting weak tremor, scientists at the Georgia Institute of Technology discovered that the 2004 magnitude 6 earthquake along the Parkfield section of the San Andreas ...

Underwater robot probes depths for Istanbul quake clues

Space & Earth / Earth Sciences

Nov 14, 2009 | 4.8 / 5 (4) | 0

A state-of-the-art underwater robot called BOB may hold the key to protecting millions of people around Turkey's biggest city against a massive earthquake scientists say is all but inevitable.

Deep creep means milder, more frequent earthquakes along Southern California's San Jacinto fault

Space & Earth / Earth Sciences

Nov 08, 2009 | 3.8 / 5 (6) | 1

With an average of four mini-earthquakes per day, Southern California's San Jacinto fault constantly adjusts to make it a less likely candidate for a major earthquake than its quiet neighbor to the east, the ...

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