M 6.6 in Japan from 29 Nov 2021 12:40 UTC to 12:40

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: 6.6M
Depth: 10 Km
Event Date: 29 Nov 2021 12:40 UTC
29 Nov 2021 22:40 Local
Exposed Population: No people affected in 100km
Source: NTWC at00r3bsb4
Inserted at: 29 Nov 2021 12:56 UTC
INFORM Coping capacity of the alert score:
1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NTWC 0 0 0
at00r3bsb4 Scaled population (vector) 0 Max wave alert 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 6.6, Izu Islands, Japan region""

Fault parameters

  • Latitude: 31.1
  • Longitude: 142.8
  • Length: 31 km
  • Width: 8 km
  • Magnitude: 6.6 M

Okada parameters:

  • Slip: .9 m
  • Strike: 172 (geogr angle: north=0, south=180)
  • Dip: 15 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): 141.3, 29.6, 144.3, 32.6
  • 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.