Overall Green Earthquake alert in North Of Ascension Island on 18 Aug 2017 02:59 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 6.6 in North Of Ascension Island on 18 Aug 2017 02:59 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:	6.6M
Depth:	10 Km
Lat/Lon:	-1.0845 , -13.6308
Event Date:	18 Aug 2017 02:59 UTC 18 Aug 2017 01:59 Local
Exposed Population:	No people within 100km
Source:	NEIC us2000a98r
Inserted at:	18 Aug 2017 04:19 UTC
INFORM Coping capacity of the alert score:	1.1 ()

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		Tsunami		GDACS score
NEIC	0		0		1
us2000a98r	Scaled population (vector)	0	Max wave scenario	0m
	C1 earthquake	1	Max wave realtime	0m
	C2 earthquake	0
	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

ID	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1177771	1	18 Aug 2017 02:59	6.7M, 19.2km	N/A	No people affected (in 100km)	0m (at 00:00)	00:15	PTWC
1177772	1	18 Aug 2017 02:59	6.7M, 19km	N/A	No people affected (in 100km)	0m (at 00:00)	00:17	NTWC
1177776	1	18 Aug 2017 02:59	6.8M, 10km	N/A	N/A (in MMI>=VII)	0m (at 00:00)	00:20	NEIC
1177787	1	18 Aug 2017 02:59	6.6M, 10km	N/A	N/A (in MMI>=VII)	0m (at 00:00)	01:19	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

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Date shake (UTC)	Delay (hh:mm)
1	1177776	-1.102/-13.656	6.8	10	18 Aug 2017 03:21	00:21	(new episode)
2	1177787	-1.084/-13.631	6.6	10	18 Aug 2017 04:21	01:22	(new episode)
3	1177787	-1.084/-13.631	6.6	10	18 Aug 2017 05:03	02:03	(upd of #2)

Affected Provinces

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.

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