Could Typhoons Help to Prevent Severe Quakes?

New research suggests that ocean storms could be helping to prevent powerful earthquakes — at least on the island of Taiwan. Typhoons often strike the island during the second half of the year. Typhoon is the name used for major storms in the western Pacific Ocean. Scientists call them cyclones when they develop over the Indian Ocean.

Recently, scientists reported that typhoons striking Taiwan can cause slow earthquakes. Slow earthquakes are different from violent earthquakes, which happen suddenly and can be extremely destructive. Instead, slow earthquakes release their energy over a period of hours or even days.

People cannot feel slow earthquakes on the ground, and instruments like seismometers cannot measure them. However, scientists say a slow earthquake could be helping to release pressure, and possibly preventing more powerful quakes.

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Magnitude-5.4 earthquake Shakes Pacific Coast of Nicaragua

An earthquake measuring 5.4 on the Richter scale shook on Monday morning the Pacific coast of Nicaragua, with no injuries or property damage reported, official sources said.

The Nicaraguan Institute of Territorial Studies (INETER) said at its website that the earthquake occurred at 8:37 a.m. local times (1437 GMT).

The INETER said that the earthquake was felt in the Nicaraguan Pacific Litoral, La Boquita and Casares in the department of Carazo, some 46 km south of Managua.

The earthquake was a result of the clash between the tectonic plates Coco and Caribe, it added.

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Strong Earthquake Shakes Panama

A strong earthquake measuring a magnitude of six shook Panama early Saturday, but there were no immediate reports of casuaties or damage, the US Geological Survey reported.

The epicenter of the tremor, which occurred at 1:49 am (0649 GMT), was located 97 kilometers (60 miles) northeast of the capital Panama City.

The reading was based on the open-ended Moment Magnitude scale, now used by US seismologists, which measures the area of the fault that ruptured and the total energy released

6.0 Earthquake Hits off Mexico and California Coast

A 6.0 magnitude earthquake struck off the coast of Mexico and California early Friday morning. The U.S. Geological Survey says the quake’s epicenter was located in the Gulf of California near the southern tip of Baja, California and Ahome, Mexico.

The temblor occurred at 5 a.m. No injuries, deaths or damages have been reported.

4 Minor Quakes Shake Western U.S.

Three minor earthquakes Wednesday morning shook areas along the U.S. Pacific Coast, including Alaska, and a tremor hit Hawaii late Tuesday, officials said.

All four quakes were between magnitude 3.0 and 3.9 on the Richter scale, the U.S. Geological Survey said. That is defined as strong enough to be felt but unlikely to cause any real damage. About 49,000 quakes in that range are reported worldwide every year.

Earthquake Preparedeness Triangle of Life

This is truly the first new emergency preparedness information in over 50 years.

Duck and Cover is outdated and should not be used. Standing in doorways during an earthquake is dangerous. The most experienced rescue organization in the world, American Rescue Team International of San Francisco, California and its founder, Doug Copp, explain in detail new emergency preparedness procedures that can save lives during disasters. [Read more...]

Earthquake Shakes up Delaware and New Jersey

Delaware was shaken up by an earthquake Wednesday morning that rattled some homes in New Jersey too!!

The tremor hit at 9:44 a.m. weighing in on the Richter scale at a 2.8 magnitude, according to Associated Press. A quake of that level means people could feel the quake, but did not experience any severe damages from it.

The United States Geological Survey’s Web site located the start of the earth quake around two miles from Pennsville, N.J., after reports originally placed its epicenter in Wilmington by the Delaware River.

Its epicenter spread out about three miles deep making it approximately 30 miles away from Philadelphia.

USGS’s web site says that while earthquakes in the western states tend to be less frequent; they do cover a “much broader region” as seen in this case.

People described the small earthquake to Philadelphia news stations as the explosion that burst in June at Sunoco’s Marcus Hook oil refinery.

City officials from eight different towns began answering around 150 phone calls from concerned citizens that felt the shake.

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Mystery Solved About Dangerous Blind Faults

It’s a mystery of earthquakes that takes a deadly toll on humans: faults buried several miles deep in Earth’s crust breed more damaging earthquakes than their surface counterparts. Over the years, unusually powerful shaking born from these “blind” faults has brought cities from California to Japan to their knees, without explanation. Until now.

Blind faults reside in rock layers perfectly suited to violent rupture, according to a new study. And when they strike, they focus explosions of energy toward the surface, jarring the nearby vicinity with a violence that can belie their modest size.

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Faults And Earthquakes In China Monitored From Space

China is in a very seismically active area and has had many catastrophic earthquakes during its history. A joint European-Chinese team is using satellite radar data to monitor ground deformation across major continental faults in China to understand better the seismic cycle and how faults behave.

Using Synthetic Aperture Radar (SAR) satellite data and a technique known as SAR Interferometry (InSAR), along with GPS data, scientists participating in ESA’s Dragon 2 Programme have been able to measure the ground deformation that occurred during the Wenchuan earthquake that struck China’s Sichuan Province last May.

InSAR involves combining two or more radar images of the same ground location in such a way that very precise measurements – down to a scale of a few centimetres or even millimetres in some cases – can be made of any ground motion taking place between image acquisitions.

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Moderate Earthquake Strikes Northern Mexico

A moderately strong earthquake has struck off Mexico’s Pacific coast, but there are no reports of damage or injuries.

The U.S. Geological Survey says the quake had a preliminary magnitude of 6 and was centered in the Gulf of California off the coast of Sinaloa state, 50 miles (65 kilometers) southwest of the coastal town of Los Mochis.

Friday’s pre-dawn quake had a depth of six miles (10 kilometers) below sea level. The Gulf of California separates mainland Mexico from the Baja California peninsula.

Meanwhile, a 5.2-magnitude quake hit southeast Colombia in the Valle de Cauca region Friday, without reports of damages or victims.