Earthquake overview : At 05.09 AM on November 18 2011, a moderate earthquake struck the western USA / Canada border. The shallow depth of 11.9 km made it feel as a strong earthquake

Keep this page open or return regularly as we will be back with more details when they become available

Update : Based on the cartography and on condition that the preliminary epicenter is correct, we can report that the epicenter was below a rocky area 3.5 km from a valley with a lot of cultivated fields.

Update : Within a radius of 270 km NO important + M5 earthquakes were registered in the recent history

Update : We ask ourselves at Earthquake-Report.com why USGS earthquake maps are stopping at the Canadian border for this earthquake.

Update : Theoretical estimates are giving the following MMI numbers for the various cities and villages near the epicenter :
V MMI (moderate shaking) : Omak and Okanogan
II MMI (very weak shaking) : Brewster, Bridgeport, Coulee Dam and Entiat

Update : Based on the I Have Felt It reports received from the British Columbia area, the number of people who have felt the earthquake is far more than the expected numbers from USGS.

Update : Following the theoretical calculations from USGS, the earthquake was felt by 1,000 people as a moderate V MMI shaking, 12,000 people have felt a light shaking and 36,000 people a weak to very weak shaking.

to read more, and for updates, go to:    http://earthquake-report.com/2011/11/18/magnitude-4-6-earthquake-strikes-the-washington-british-columbia-border-area/