M 5.5 in Guam from 16 May 2017 03:56 UTC to 03:56

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: 5.5M
Depth: 40.3 Km
Lat/Lon: 12.373 , 145.145
Event Date: 16 May 2017 03:56 UTC
16 May 2017 13:56 Local
Exposed Population:
No people within 100km
Source: PTWC pt17136050
Inserted at: 16 May 2017 04:12 UTC
INFORM Coping capacity of the alert score
1.1 (Guam)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
PTWC 0 0
pt17136050 Scaled population (vector) 0  
  C1 earthquake 1  
  C2 earthquake 0  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1167955 0 16 May 2017 03:56 5.5M, 40.3km N/A No people affected (in 100km) 00:15 PTWC
1167957 0.2 16 May 2017 03:56 5.6M, 65.48km N/A 160 thousand (in 100km) 00:21 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.

Exposed population

The earthquake happened in Guam , of Guam (population 143,173) .

Radius Population
100 km no people
75 km no people
50 km no people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Guam Guam 140000 people
Northern Mariana Is. Northern Mariana Islands 61000 people

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

More information

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