Sentences with phrase «small earthquakes occur»

There have been small earthquakes occur within the state.

Not exact matches

But plenty of smaller earthquakes, most not even felt by humans, occur across the world every day due to detonations, such as nuclear weapons testing or mining, or rising magma linked to volcanic activity.

So far, scientists believe that larger earthquakes are unlikely to occur following tremors or earthquakes below a Richter scale of 2 that are caused by small vibrations or slow fault movements such as those observed in the area of Parkfield along the San Andreas Fault in California, USA.

The earthquake — estimated at magnitude 9.0 on the Richter scale — occurred in a total area much smaller than previous large earthquakes, such as the 8.8 Chilean earthquake last year, arguing that the slippage was much greater for the Japan quake, one of the four most powerful earthquakes on record.

In contrast, similar earthquake swarms that occur near the surface can take hours or days to finish, and would likely include a large number of small aftershocks.

Nine small earthquakes had already occurred between March and November 2011 within an eight - kilometer radius of a wastewater injection well run by Northstar Disposal Services.

First detected by networks monitoring seismic activity in 1998, the tiny ripples were initially chalked up to the many small earthquakes that occur each day around the world.

A new study of the Jones earthquake swarm, occurring near Oklahoma City since 2008, demonstrates that a small cluster of high - volume injection wells triggered earthquakes tens of kilometers away.

Japanese government used the AGW theory to promote nuclear power in this small country where huge earthquakes and tsunamis have occurred repeatedly.

A tiny seismic event that occurred in North Korea on 12 May 2010 appears to have bene an earthquake rather than a small underground nuclear explosion, according to a new analysis published in the Bulletin of the Seismological...

An aftershock is a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock.