M 7.9 in Mexico from 20 Mar 2012 18:02 UTC to 18:02

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: 7.9M
Depth: 10 Km
Event Date: 20 Mar 2012 18:02 UTC
20 Mar 2012 12:02 Local
Exposed Population: 1270000 people within 100km
Source: NEIC usc0008m6h
Inserted at: 02 Feb 2017 13:09 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1.6 1 1.6
usc0008m6h 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
115596 1.5 20 Mar 2012 18:02 7.7M, 10km N/A 1.1 million (in 100km) 0m (at 00:00) 1779d 19:06 NEIC
115597 1.6 20 Mar 2012 18:02 7.9M, 10km N/A 1.3 million (in 100km) 0m (at 00:00) 1779d 19:06 NEIC
115599 1.4 20 Mar 2012 18:02 7.6M, 17.5km N/A 980 thousand (in 100km) 0m (at 03:38) 1779d 19:06 NEIC
115601 1.3 20 Mar 2012 18:02 7.4M, 20km 7.7 220 thousand (in MMI>=VII) 0m (at 00:00) 1779d 19:06 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: "eqid"

Fault parameters

  • Latitude: 17.041
  • Longitude: -98.115
  • Length: 141 km
  • Width: 39 km
  • Magnitude: 7.9 M

Okada parameters:

  • Slip: 3.6 m
  • Strike: 288 (geogr angle: north=0, south=180)
  • Dip: 12 degree
  • Rake: 90 degree
  • Depth: 10 km

Calculation parameters

  • Calculation space (lon/lat): -111.615, 3.541, -84.615, 30.541
  • Instead of Step -> use Cell size:2.25 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.