Earthquake overview : A massive subduction earthquake occurred below the Colombian Andes at 11:31 local time.
Update 18:21 UTC : USGS has changed his Pager color from Green to Yellow, a move we do not like at all. This indicates that there is certainly a chance on fatalities from secondary effects like landslides and Rockfall. We do not expect any shaking fatalities as the max. shaking reported is a V MMI (moderate shaking)
Update 17:52 UTC : The massive earthquake wave is now travelling around the world and will be noticed on every seismograph worldwide. A good example is the below graph at El Hierro, Canary Islands, Spain. The wave departed at the epicenter at 16:31:34 UTC and arrived at El Hierro at 16:42. It took the earthquake wave only 11 minutes to travel this huge distance from Colombia to the Canary Islands* 2 million people are expected to have felt a moderate shaking* 14.5 million people a light shaking and 10 million people a weak shaking. These 3 shaking values are normally NOT generating any damage. Small cracks in walls and falling objects are often experienced though.
Sunday, September 30, 2012
"Massive" (7.1) But Fortunately, Deep Earthquake In Columbia
Massive Deep Earthquake Felt All Over Columbia And Ecuador
Posted by Scott at Sunday, September 30, 2012