M 6.4 in Northern Mariana Islands on 28 Aug 2018 22:35 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: 6.4M
Depth: 59.9 Km
Lat/Lon: 16.7605 , 146.8723
Event Date: 28 Aug 2018 22:35 UTC
29 Aug 2018 08:35 Local
Exposed Population: No people within 100km
Source: NEIC us1000gj78
Inserted at: 28 Aug 2018 22:56 UTC
INFORM Coping capacity of the alert score
1.1 (Northern Mariana Is.)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us1000gj78 Scaled population (vector) 0 Max wave alert 0m  
  C1 shakemap -0.59 Max wave realtime 0m  
  C2 shakemap 0.53      
  Country Vulnerability 0      
  INFORM_normalised 1      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1226168 0 28 Aug 2018 22:35 6.5M, 10km N/A No people affected (in 100km) 0m (at 00:00) 00:06 GEOFON
1226170 0 28 Aug 2018 22:35 6.6M, 51.3km 4.1 N/A (in MMI>=VII) 0m (at 00:00) 00:10 PTWC
1226172 0 28 Aug 2018 22:35 6.6M, 53km N/A No people affected (in 100km) 0m (at 00:00) 00:11 NTWC    
1226176 0 28 Aug 2018 22:35 6.4M, 59.9km 4.04 N/A (in MMI>=VII) 0m (at 00:00) 00:20 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 61000 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.