IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on this powerful magnitude 7.3 earthquake, which struck off the Pacific coast of Central America late Monday night. Early reports indicate one death.The earthquake occurred at a depth of 40 km (24.9 miles).  Its epicenter was offshore, 86 km (53 miles) SSW of La Union, El Salvador.

IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on this powerful magnitude 7.1 earthquake near the intersection of the Pacific, Nazca and Antarctic Plates. The epicenter was located ~3000 km off the Chilean coast and occurred on October 9, 2014.

IRIS page: http://www.iris.edu/hq/retm/2764

IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on this powerful earthquake (M6.0), when early Sunday morning, the Bay Area was awakened by the biggest earthquake the region has experienced since the Loma Prieta earthquake nearly 25 years ago.  The earthquake was centered 6 miles (10 km) south of the city of Napa, which is located about 50 miles northeast of San Francisco.

From USGS  --  The rate of earthquakes in Oklahoma has increased by about 50 percent since October 2013, significantly increasing the chance for a damaging quake in central Oklahoma. 

From USGS  --  Climate change research in Glacier National Park, Montana entails many methods of documenting the landscape change, including the decline of the parks namesake glaciers. While less quantitative than other high-tech methods of recording glacial mass, depth, and rate of retreat, repeat photography has become a valuable tool for communicating effects of global warming.

April has been a busy month for notable earthquakes.  Here, we compile links to the IRIS Teachable Moment resources (MS PowerPoint files) and USGS links.  For general earthquake information, be sure to check out PAESTA Recommends Earthquake Resources.