M 6.3 in Japan on 04 Aug 2019 10:23 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: 6.3M
Depth: 38.56 Km
Event Date: 04 Aug 2019 10:23 UTC
04 Aug 2019 19:23 Local
Exposed Population: About 87000 people in MMI
2570000 people within 100km
Source: NEIC us600050if
Inserted at: 05 Aug 2019 10:27 UTC
INFORM Coping capacity of the alert score:
1.5 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us600050if Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 0.57      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1268212 0 04 Aug 2019 10:23 6.3M, 38.56km 4.92 N/A (in MMI>=VII) 0m (at 00:00) 1d 00:04 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.

Tsunami affected locations

Alert Date (UTC) Name Country Wave height (m)

See full locations list (RSS)


Initial conditions

Title: ""54km ENE of Namie""

Fault parameters

  • Latitude: 37.734
  • Longitude: 141.536
  • Length: 22 km
  • Width: 6 km
  • Magnitude: 6.3 M

Okada parameters:

  • Slip: .6 m
  • Strike: 198 (geogr angle: north=0, south=180)
  • Dip: 21 degree
  • Rake: 90 degree
  • Depth: 39 km

Calculation parameters

  • Calculation space (lon/lat): 140.036, 36.234, 143.036, 39.234
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

  • Timeline:
    Tsunami calculations performed to this case, click here

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