M 6.3 in Volcano Islands, Japan Region on 16 Aug 2018 18:22 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: 6.3M
Depth: 20 Km
Lat/Lon: 23.4356 , 143.3143
Event Date: 16 Aug 2018 18:22 UTC
17 Aug 2018 04:22 Local
Exposed Population: No people within 100km
Source: NEIC us1000gaqv
Inserted at: 17 Aug 2018 18:02 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0.5 0.5
us1000gaqv Scaled population (vector) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0.51m  
  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
1224344 0 16 Aug 2018 18:22 6.4M, 11.51km 3.51 N/A (in MMI>=VII) 0m (at 00:00) 00:28 NEIC
1224467 0.5 16 Aug 2018 18:22 6.3M, 20km 2.94 N/A (in MMI>=VII) 0.5m (at 00:00) 23:39 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
no people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1224344 23.441/143.341 6.4 11.51 3.21 16 Aug 2018 18:53 00:30 (new episode)
2 0 1224344 23.441/143.341 6.4 11.51 3.51 16 Aug 2018 20:27 02:04 (upd of #1)
3 0 1224467 23.441/143.341 6.4 11.51 3.51 17 Aug 2018 18:02 23:39 (new episode)
4 0 1224467 23.436/143.314 6.3 20 2.94 17 Aug 2018 18:04 23:41 (upd of #3)

Affected Provinces


Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance

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
Iwo To (Iwo Jima) IWO 113 Mil. Paved Yes 8700 251 km

Ports

Intensity Name LOCODE Country Distance
Minami Lo Japan 207 km
Iwo Jima Japan 251 km

More information

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