M 5.6 in Northern Mariana Islands on 20 Jul 2018 23:56 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: 5.6M
Depth: 125.75 Km
Lat/Lon: 18.4709 , 145.9983
Event Date: 20 Jul 2018 23:56 UTC
21 Jul 2018 09:56 Local
Exposed Population: No people within 100km
Source: NEIC us2000gaa3
Inserted at: 21 Jul 2018 00:16 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)		 GDACS score
NEIC 0 0
us2000gaa3 Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1220487 0 20 Jul 2018 23:56 5.6M, 125.75km 3.59 N/A (in MMI>=VII) 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 unknowed a zone. The alertlevel for this event is GREEN

Intensity Population
no people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1220487 18.471/145.998 5.6 125.75 3.59 21 Jul 2018 00:21 00:25 (new episode)
2 0 1220487 18.471/145.998 5.6 125.75 3.59 21 Jul 2018 02:02 02:06 (upd of #1)

Affected Provinces


Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance

see full list


Critical infrastructure

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

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Pagan Airstrip 10 0 45 km

Ports

Intensity Name LOCODE Country Distance
Pagan Island Northern Mariana Islands 45 km
Guguan Island Northern Mariana Islands 130 km
Farallon de Pajaros Japan 255 km

More information

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