M 6.4 in Japan on 29 Nov 2021 12:40 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: 6.4M
Depth: 19.85 Km
Event Date: 29 Nov 2021 12:40 UTC
29 Nov 2021 21:40 Local
Exposed Population: No people affected in 100km
Source: NEIC us7000fxyq
Inserted at: 29 Nov 2021 13:07 UTC
INFORM Coping capacity of the alert score:
1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 0 0 0
us7000fxyq Scaled population (raster) 0 Max wave scenario 0m  
  C1 earthquake 1 Max wave realtime 0m  
  C2 earthquake 0      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.
Click on image to zoom it.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1412649 0 29 Nov 2021 12:40 6.6M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:13 PTWC
1412650 0 29 Nov 2021 12:40 6.6M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:16 NTWC
1412652 0 29 Nov 2021 12:40 6.4M, 19.85km 2.95 N/A (in MMI>=VII) 0m (at 00:00) 00:26 NEIC
1412654 0 29 Nov 2021 12:40 6.3M, 6.14km 2.82 N/A (in MMI>=VII) 0m (at 00:00) 00:35 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: ""M 6.4, Izu Islands, Japan region""

Fault parameters

  • Latitude: 31.2
  • Longitude: 142.494
  • Length: 25 km
  • Width: 7 km
  • Magnitude: 6.4 M

Okada parameters:

  • Slip: .6 m
  • Strike: 172 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 20 km

Calculation parameters

  • Calculation space (lon/lat): 140.994, 29.7, 143.994, 32.7
  • Instead of Step -> use Cell size:.25 minutes

Sea Level

More information

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

  • Montecarlo:
    Tsunami Montecarlo simulation performed to this case, click here

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