Overall Green Earthquake alert in Central Mid-Atlantic Ridge on 18 Sep 2020 21:43 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 6.9 in Central Mid-Atlantic Ridge on 18 Sep 2020 21:43 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:	6.9M
Depth:	10 Km
Lat/Lon:	0.9604 , -26.8332
Event Date:	18 Sep 2020 21:43 UTC 18 Sep 2020 19:43 Local
Exposed Population:	No people within 100km
Source:	NEIC us7000bq10
Inserted at:	18 Sep 2020 23:49 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
us7000bq10	Scaled population (raster)	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

ID	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1333485	18 Sep 2020 21:43	6.8M, 33km	N/A	No people affected (in 100km)	0m (at 00:00)	00:13	PTWC
1333486	18 Sep 2020 21:44	6.8M, 33km	N/A	No people affected (in 100km)	0m (at 00:00)	00:15	NTWC
1333489	18 Sep 2020 21:43	6.9M, 10km	3.45	No people affected (in 100km)	0m (at 00:00)	02:05	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 off shore.

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

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.

Disclaimer
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