M 4.7 in Japan on 26 Sep 2020 06:23 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: 4.7M
Depth: 15.87 Km
Lat/Lon: 23.8236 , 123.3845
Event Date: 26 Sep 2020 06:23 UTC
26 Sep 2020 14:23 Local
Exposed Population:
About 38000 people within 100km
Source: NEIC us6000c1j8
Inserted at: 26 Sep 2020 06:41 UTC
INFORM Coping capacity of the alert score
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us6000c1j8 Scaled population (vector) 3.72  
  C1 earthquake 0.73  
  C2 earthquake -0.22  
  Country Vulnerability -0.71  
  INFORM_normalised 0.57  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1334696 0 26 Sep 2020 06:23 4.7M, 15.87km N/A 40 thousand (in 100km) 00:18 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) . The nearest places are Shirabaramitake, Sakiyama, and Toyohara.

Radius Population
100 km 39000 people
75 km 1700 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 22.5 million people
Fujian China 33.3 million people
Zhejiang China 45.9 million people

Affected populated places

Name Region Province Country City class Population Distance
Shirabaramitake Okinawa Japan Village - 47 km
Sakiyama Okinawa Japan Village - 61 km
Toyohara Okinawa Japan Village - 69 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Hateruma HTR unknown 0 48 km
Iriomote Jima 12 0 70 km
Yonaguni OGN 21 Civ. Paved Yes 4900 82 km
Ishigaki ISG 26 Civ. Paved Yes 4900 100 km

Ports

Name LOCODE Country Distance
Irionote Island Japan 68 km
Ishigaki Japan 97 km

More information

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