M 5.5 in Japan on 16 Jul 2021 04:19 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: 5.5M
Depth: 11.26 Km
Lat/Lon: 33.3082 , 139.4983
Event Date: 16 Jul 2021 04:19 UTC
16 Jul 2021 13:19 Local
Exposed Population: About 1000 people in MMI
About 11000 people within 100km
Source: NEIC us7000emeg
Inserted at: 16 Jul 2021 04:41 UTC
INFORM Coping capacity of the alert score: 1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us7000emeg Scaled population (raster) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1385904 0 16 Jul 2021 04:19 5.5M, 11.26km 4.53 N/A (in MMI>=VII) 00:21 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 unknowed a zone. The alertlevel for this event is GREEN

Intensity Population
1200 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1385904 33.308/139.498 5.5 11.3 4.529 16 Jul 2021 04:44 00:24 (new episode)
2 0 1385904 33.308/139.498 5.5 11.3 4.529 16 Jul 2021 05:50 01:30 (upd of #1)
3 0 1385904 33.308/139.498 5.5 11.3 4.529 16 Jul 2021 06:24 02:04 (upd of #2)
4 0 1385904 33.308/139.498 5.5 11.3 4.529 17 Jul 2021 04:24 1d 00:04 (upd of #3)

Affected Provinces


Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Mitsune Shizuoka Japan City - 36 km
Sato Shizuoka Japan Village - 65 km
Ako Shizuoka Japan Village - 86 km

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Hachijo Jima HAC 92 Civ. Paved Yes 5900 34 km
Miyake Jima MYE 20 Civ. Paved Yes 3900 85 km

Ports

Intensity Name LOCODE Country Distance
Yaene Japan 35 km
Mikura Japan 61 km
Miyake Japan 82 km

More information

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