M 5.5 in Japan on 03 May 2021 05:07 UTC
EQ parameters

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: 5.5M
Depth: 189.23 Km
Lat/Lon: 25.7309 , 123.9688
Event Date: 03 May 2021 05:07 UTC
03 May 2021 13:07 Local
Exposed Population:
Few people within 100km
Source: NEIC us7000dzma
Inserted at: 03 May 2021 05:18 UTC
INFORM Coping capacity of the alert score: 1.1 (Japan)


For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us7000dzma Scaled population (vector) 0.6  
  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
1373325 0 03 May 2021 05:07 5.5M, 189.23km N/A Few people (in 100km) 00:11 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 Okinawa (population 1,242,315) .

Radius Population
100 km <1000 people
75 km <1000 people
50 km <1000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Okinawa Japan 1.2 million people
Taiwan China 22.4 million people
Zhejiang China 45.9 million people
Fujian China 33.2 million people

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.