M 4.9 in Bonin Islands, Japan Region on 28 Apr 2017 21:01 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: 52.71 Km
Lat/Lon: 26.4211 , 141.9188
Event Date: 28 Apr 2017 21:01 UTC
29 Apr 2017 06:01 Local
Exposed Population:
About 2000 people within 100km
Source: NEIC us10008ltv
Inserted at: 28 Apr 2017 22:03 UTC
INFORM Coping capacity of the alert score
1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us10008ltv Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1165768 0 28 Apr 2017 21:01 4.9M, 52.71km N/A 2 thousand (in 100km) 01:01 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 2300 people
75 km <1000 people
50 km <1000 people
20 km <1000 people
10 km no people
5 km no people
2 km no people

Affected Provinces

Affected populated places

Name Region Province Country City class Population Distance
Oki Shizuoka Japan Village - 34 km
Hyogidaira Shizuoka Japan Village - 34 km

see full list

Critical infrastructure

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

Ports

Name LOCODE Country Distance
Haha Japan 30 km
Omura Japan 78 km

More information

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