The International Information Center for Geotechnical Engineers

On Saturday, September 3rd, an earthquake struck northern Oklahoma at around 7 am. The quake was also felt accross Kansas, Missouri, Arkansas, and Texas. The epicenter was determined to be near Pawnee, about 74 miles north of Oklahoma City at a depth of 3.7 miles.

The quake was initially measured at a 5.6 magnitude, tying the state record. After further depth analysis, the USGS has updated the reading to a 5.8, making it the largest earthquake on record in the state of Oklahoma.

This week, several smaller earthquakes struck the same part of Oklahoma. So far, there have been 8 recorded earthquakes over a magnitude of 3.0. The Oklahoma Geological Survey believes it is possible that these quakes my be linked wastewater injection wells from fracking. They are beginning a study to determine ways to reduce the chances of "inadvertently inducing a seismic event". At this time, the USGS believes the event was a result of shallow strike-slip faulting.

Source: NPR

Source: USGS

More than 250,000 people in California, who live in coastal zones, are in danger due to flooding by a potential tsunami, according to research of the American Center of Geophysics (USGS).

In the Buffalo National River, somebody can hear the running water and the next minute the water is gone! In the Ozarks, there are streams that disappear and reappear randomly! The ultimate question is about the reason that the streams become disappeared and the place in which the "disappeared" water goes.

A newly released report from the U.S. Geological Survey (USGS) has for the first time attempted to establish a connection between human activities such as fracking with earthquake occurrence. Even though small in magnitude, human-induced earthquakes are becoming gradually important and warnings that greater magnitude events may be generated are expressed. 

A new report with updated earthquake maps, issued by the U.S. Geological Survey, reveals the 16 states recognized as high risk areas for seismic activity. In addition, areas of 42 states, located in the country's western half, Midwest and Southeast have been identified to be at risk of earthquakes in the next 50 years, while the report includes geologists' predictions of the places, intensity and frequency of future shakes.

Published in Other News

iCoast: Did the coast change? This is the question that users of the new crowdsourcing application launched by USGS, will get the opportunity to answer. The obtained information will help scientists improve their predictive models and citizens to understand the coastal change procedure as well as realize their personal vulnerabilities against extreme storm events.

Page 2 of 2