M 6.2 in Northern Mariana Islands from 11 Feb 2018 23:14 UTC to 23:14

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: 6.2M
Depth: 41.9 Km
Lat/Lon: 13.835 , 146.521
Event Date: 11 Feb 2018 23:14 UTC
12 Feb 2018 09:14 Local
Exposed Population: No people within 100km
Source: PTWC pt18042001
Inserted at: 11 Feb 2018 23:24 UTC
INFORM Coping capacity of the alert score: 1.1 (Northern Mariana Is.)


For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
PTWC 0 0 0
pt18042001 Scaled population (vector) 0 Max wave scenario 0.01m  
  C1 earthquake 1 Max wave realtime 0m  
  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
1198498 0 11 Feb 2018 23:14 6.2M, 41.9km N/A No people affected 0m (at 00:00) 00:09 PTWC
1198501 0 11 Feb 2018 23:14 6M, 10km 3.64 No people affected 00:17 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 Northern Mariana Islands , of Northern Mariana Is. (population 60,963) .

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
Northern Mariana Is. Northern Mariana Islands 60000 people
Guam Guam 140000 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.