M 4.9 in Japan on 15 Mar 2011 12:33 UTC

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: Km
Lat/Lon: 38.9765 , 142.631
Event Date: 15 Mar 2011 12:33 UTC
15 Mar 2011 22:33 Local
Exposed Population:
300000 people within 100km
Source: NEIC usc00023fe
Inserted at: 15 Mar 2011 12:56 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc00023fe 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
105497 0.5 15 Mar 2011 12:33 4.9M, 24.9km N/A 300 thousand (in 100km) 00:22 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 in Japan , Region of Tohoku (population 9,984,608) . The nearest places are Shirahama, Oishi, and Sakihama.

Radius Population
100 km 270000 people
75 km 34000 people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Tohoku Japan 10 million people
Kanto Japan 38.5 million people
Hokkaido Japan 5.8 million people
Chubu Japan 5.2 million people

Affected populated places

Name Region Province Country City class Population Distance
Shirahama Iwate Japan Village - 67 km
Oishi Iwate Japan Village - 68 km
Sakihama Iwate Japan Village - 68 km

see full list

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Kamaishi JPKIS Japan 72 km
Yamada Japan 79 km
Ofunato JPOFT Japan 79 km
Kesennuma Ko Japan 90 km
Miyako JPMYK Japan 93 km

More information

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