seismic zone – Shamskm: A site to exchange knowledge and solutions

Threat of Earthquakes Occurring in Central United States Still Alive

PASADENA, Calif. — Earthquake activity in the New Madrid Seismic Zone in the central United States does not seem to be slowing down. In a new study published in the journal “Science,” seismologists Morgan Page and Susan Hough of the U.S. Geological Survey investigate whether current quakes in the region could be aftershocks of large earthquakes that occurred 200 years earlier.

Using extensive computer modeling of aftershock behavior, they show that the dearth of moderate (Magnitude 6) earthquakes following the series of large earthquakes in 1811-1812, combined with the high rates of small earthquakes today, is not consistent with the long-lived aftershock hypothesis. (more…)

What Will You Do If an Earthquake Hits?

By Guest PostOctober 14, 2012Environmentaftershock, california, california drill, canada, central virginia, concept, earthquake, earthquake risk, east coast, fault, great shakeout, greg anderson, Japan, large earthquake, magnitude, mark benthien, material, mid atlantic, nsf, potential loss, region, san andreas, scec, seismic zone, shakeout scenario, territories, tremor, US, usgs, washington d.c., website

Join the Great ShakeOut on October 18, 2012, to prepare

The Central Virginia Seismic Zone, it’s called, and it sometimes shakes everything in sight.

As long ago as 1774, people in central Virginia felt small earthquakes and suffered damage from intermittent larger ones. A magnitude 4.8 quake happened in 1875.

Then last year, on August 23, 2011, a magnitude 5.8 quake hit the same region. Several aftershocks, ranging up to magnitude 4.5, occurred after the main tremor.

Will there be another such quake in the mid-Atlantic region? (more…)

Tag Archives: seismic zone

Threat of Earthquakes Occurring in Central United States Still Alive

What Will You Do If an Earthquake Hits?