M 6.3 in Ascension Island Region on 11 Nov 2017 00:36 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: 6.3M
Depth: 10 Km
Lat/Lon: -11.7482 , -14.0995
Event Date: 11 Nov 2017 00:36 UTC
10 Nov 2017 23:36 Local
Exposed Population: No people within 100km
Source: NEIC us2000blul
Inserted at: 11 Nov 2017 00:57 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us2000blul Scaled population (vector) 0 Max wave scenario 0m  
  C1 shakemap 0 Max wave realtime 0m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
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
1187058 0 11 Nov 2017 00:36 6.3M, 10km 2.68 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 unknowed a zone. The alertlevel for this event is GREEN

Intensity Population
no people
no people
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1187058 -11.748/-14.1 6.3 10 2.68 11 Nov 2017 00:59 00:23 (new episode)
2 0 1187058 -11.748/-14.1 6.3 10 2.68 11 Nov 2017 02:39 02:03 (upd of #1)

Affected Provinces


Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Georgetown St. Helena City <1000 people 423 km

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
Wideawake Field ASI 85 0 419 km

Ports

Intensity Name LOCODE Country Distance
Georgetown SHASI Saint Helena 423 km
Ascencion SHASC Saint Helena 424 km

More information

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