M 4.9 Off-shore from 27 Dec 2009 23:32 UTC to 23:32

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 4.9M
Depth: 10.6 Km
Lat/Lon: 3.3776 , -31.4867
Event Date: 27 Dec 2009 23:32 UTC
27 Dec 2009 21:32 Local
Exposed Population:
no people within 100km
Source: NEIC us2009qsa8
Inserted at: 01 Jan 2010 03:29 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
us2009qsa8 Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
71725 0.5 27 Dec 2009 23:32 4.8M, 10km N/A No people affected (in 100km) 00:20 NEIC
71944 0.5 27 Dec 2009 23:32 4.9M, 10.6km N/A No people affected (in 100km) 4d 03:56 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened off shore.

Radius Population
100 km no people
75 km no people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.