Source AP ©

Caribbean quake arouses false quake alarms in California

A powerful earthquake in the Caribbean caused the appearance of a series of false quake alarms in California.

Scientists with the U.S. Geological Survey said a wave of seismic energy confused computers that try to triangulate the location of earthquakes along the West Coast. It began shortly after 11 a.m., when a magnitude 7.3 earthquake struck 23 miles (37 kilometers) southeast of Roseau, the capital of Dominica, a temblor that was felt as far away as Puerto Rico.

As the wave of energy from that quake passed through California, computers initially spit out warnings that a magnitude 6.0 temblor had struck near Chico in the north-central part of the state. Seconds later, monitors indicated an arc of earthquakes stretching from San Luis Obispo on the state's central coast to Lake Tahoe.

The readings were posted automatically on the Geological Survey's Web sites.

"These were all mislocated, picking up energy coming out of the Caribbean and treating it as a local earthquake," said Bob Dollar, a geophysicist with the Geological Survey.

"All of these mythical quakes struck within a few seconds of each other, and frankly that's a clue for us that the rash didn't actually occur. The trick is you have to make sure every one of them was false."

Dollar and a team of scientists analyzed each of the reported California earthquakes and determined all were false alarms. The wave of fake quakes began registering nine minutes after the Caribbean quake.

In September, a similar incident occurred when a massive earthquake struck off the Mariana Islands in the Pacific Ocean. The quake triggered six false quakes in California.

Comments
Hillary in 2020?
Russia unveils nuclear-powered interstellar spaceship
Russia close to recognising Donetsk and Luhansk republics after Donbass elections
Presidential and midterm elections in the USA change the 'American project' entirely
Hillary in 2020?
Presidential and midterm elections in the USA change the 'American project' entirely
Paris Peace Forum: A First Step but watch the Lobbies
Paris Peace Forum: A First Step but watch the Lobbies
Without INF Treaty, USA can destroy Russian nuclear weapons easily
Without INF Treaty, USA can destroy Russian nuclear weapons easily
Russia close to recognising Donetsk and Luhansk republics after Donbass elections
Norwegians complain of demoralised NATO soldiers
Mikhail Gorbachev shares his thoughts on nuclear war
2018: A critical lack of common sense in world governance
2018: A critical lack of common sense in world governance
Russia unveils nuclear-powered interstellar spaceship
Without INF Treaty, USA can destroy Russian nuclear weapons easily
Russia close to recognising Donetsk and Luhansk republics after Donbass elections
The difference between Polish and Ukrainian nationalism is plain to see
The difference between Polish and Ukrainian nationalism is plain to see
Capital outflow from Russia sets new records