Strong but harmless seaquake - aftershock hits coastal Chile

Port of Valparaiso (Chile)

Valparaiso - Image via Wikipedia

Earthquake Report comment :
After a period of relative calm, a strong aftershock struck the Chilean coastal area. The epicenter was located in the same greater area than the devastating Magnitude 8.8 earthquake from February 27.
GDACS has issued a GREEN earthquake alert for this earthquake = very limited chance on damage and/or injuries
NO tsunami bulletins have been published.
QuakeSOS, out iPhone app for quick communication, has not been used once (usually we receive immediatly signals after scary shaking).
Because the epicenter was at a relatively big distance in the Pacific Ocean,  the maximum expected shaking for approx. 36,000 people was a Mercalli IV (light shaking).
Although the Magnitude would have created more fear, we can describe this powerful aftershock as weak.

Most important Earthquake Data:
Magnitude : 5.8
Wednesday, October 20, 2010 at 09:49:56 PM at epicenter
Depth (Hypocenter) : 7 km
Geo-location(s) :
190 km (120 miles) NW of Cauquenes, Maule, Chile
205 km (130 miles) WNW of Talca, Maule, Chile
235 km (145 miles) WSW of San Antonio, Valparaiso, Chile

Links to important maps
USGS Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
USGS Shaking map
USGS historic earthquakes map
USGS Pager map
GDACS Green Earthquake Alert (Global Disaster Alert and Coordination System)

* GDACS (Global Disaster Alert and Coordination System) provides near real-time alerts about natural disasters around the world. GDACS is a Joint Initiative of the United Nations and the European Commission

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with "Earthquake Report" news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.