M 6.6 in Japan on 21 Oct 2016 05:07 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 6.6M
Depth: 6.35 Km
Event Date: 21 Oct 2016 05:07 UTC
21 Oct 2016 14:07 Local
Exposed Population: 3050000 people within 100km
Source: NEIC us20007fta
Inserted at: 21 Oct 2016 05:27 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1.1 0 1.1
us20007fta Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1143515 1.1 21 Oct 2016 05:07 6.6M, 11km N/A 2.9 million (in 100km) 0m (at 00:21) 00:13 NTWC    
1143516 1.1 21 Oct 2016 05:07 6.6M, 11km N/A 2.9 million (in 100km) 0m (at 00:21) 00:14 PTWC
1143519 1.1 21 Oct 2016 05:07 6.6M, 6.35km N/A 3.1 million (in 100km) 0m (at 00:00) 00:19 NEIC
1143522 0.9 21 Oct 2016 05:07 6.2M, 10km 7.18 3 million (in 100km) 00:34 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: "8km S of Kurayoshi"

Fault parameters

  • Latitude: 35.353
  • Longitude: 133.821
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 244 (geogr angle: north=0, south=180)
  • Dip: 11 degree
  • Rake: 90 degree
  • Depth: 6 km

Calculation parameters

  • Calculation space (lon/lat): 132.321, 33.853, 135.321, 36.853
  • 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.