M 4.9 in Guam on 05 Apr 2016 17:34 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: 4.9M
Depth: 62.52 Km
Lat/Lon: 12.9137 , 144.3804
Event Date: 05 Apr 2016 17:34 UTC
06 Apr 2016 03:34 Local
Exposed Population:
173456 people within 100km
Source: NEIC
Inserted at: 06 Apr 2016 17:21 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.1 0.1
Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1124309 0.1 05 Apr 2016 17:34 4.9M, 54.11km N/A 170 thousand (in 100km) 00:55 NEIC
1124417 0.1 05 Apr 2016 17:34 4.9M, 62.52km N/A 170 thousand (in 100km) 23:46 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) . The nearest places are Merizo, Umatac, Inarajan, Agat, Santa Rita, Camp Bright, Talofofo, Lockwood Terrace, Ylig, and Hagåtña.

Radius Population
100 km 160000 people
75 km 32000 people
50 km <1000 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

Affected populated places

Name Region Province Country City class Population Distance
Merizo Guam Village 1700 people 53 km
Umatac Guam Village - 55 km
Inarajan Guam Village <1000 people 59 km
Agat Guam Village 4400 people 62 km
Santa Rita Guam Village 1300 people 63 km
Camp Bright Guam Village - 65 km
Talofofo Guam Village 2700 people 66 km
Lockwood Terrace Guam Village - 66 km
Ylig Guam Village - 69 km
Hagåtña Guam Capital 1000 people 75 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
A.B. Won Pat International GUM 91 0 80 km
Andersen AFB UAM 191 0 98 km

Ports

Name LOCODE Country Distance
Apra Harbor Guam 66 km
Apra (Agana) GUAPR Guam 69 km

More information

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