M 7.1 in Guam from 17 Sep 2014 06:14 UTC to 06:14

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: 7.1M
Depth: 171.6 Km
Event Date: 17 Sep 2014 06:14 UTC
17 Sep 2014 16:14 Local
Exposed Population: 170000 people within 100km
Source: USGS pt14260000
Inserted at: 17 Sep 2014 06:25 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
USGS -0.4 0 0
pt14260000 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
1060467 0 17 Sep 2014 06:14 6.8M, 166km N/A 180 thousand (in 100km) 0m (at 00:00) 00:06 GEOFON
1060468 0 17 Sep 2014 06:14 7.1M, 171.6km N/A 180 thousand (in 100km) 0m (at 00:00) 00:10 USGS
1060469 0 17 Sep 2014 06:14 7.1M, 171.6km N/A 180 thousand (in 100km) 0m (at 00:00) 00:15 NEIC
1060472 0.5 17 Sep 2014 06:14 7.1M, 133.86km N/A 180 thousand (in 100km) 0m (at 00:00) 00:24 NEIC
1060476 0.5 17 Sep 2014 06:14 6.7M, 136.7km N/A 180 thousand (in 100km) 0m (at 00:00) 01:15 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: "M7.1 Off-shore"

Fault parameters

  • Latitude: 13.74
  • Longitude: 144.539
  • Length: 56 km
  • Width: 15 km
  • Magnitude: 7.1 M

Okada parameters:

  • Slip: 1.5 m
  • Strike: 237 (geogr angle: north=0, south=180)
  • Dip: 38 degree
  • Rake: 90 degree
  • Depth: 172 km

Calculation parameters

  • Calculation space (lon/lat): 140.039, 9.24, 149.039, 18.24
  • Instead of Step -> use Cell size:.73 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.