Overall Green Earthquake alert in North Of Ascension Island from 29 Aug 2016 04:29 UTC to 04:30

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 7.4 in North Of Ascension Island from 29 Aug 2016 04:29 UTC to 04:30

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:	7.4M
Depth:	10 Km
Event Date:	29 Aug 2016 04:30 UTC 29 Aug 2016 03:30 Local
Exposed Population:	No people within 100km
Source:	NTWC at00ocnltz
Inserted at:	29 Aug 2016 04:45 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		Tsunami		GDACS score
NTWC	0		1		0.5
at00ocnltz	Scaled population (vector)	n.a	Max wave scenario	0m
	C1 earthquake	n.a	Max wave realtime	0.16m
	C2 earthquake	n.a
	Country Vulnerability	n.a
	INFORM_normalised	n.a

Maximum expected impact using different data sources.

Click on image to zoom it.

Episode Timeline

ID	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1138205	0.5	29 Aug 2016 04:29	6.8M, 10km	N/A	No people affected (in 100km)	0m (at 00:00)	00:08	GEOFON
1138211	0.5	29 Aug 2016 04:30	7.4M, 10km	N/A	No people affected (in 100km)	0.2m (at 01:48)	00:15	NTWC
1138220	0.5	29 Aug 2016 04:29	6.9M, 10km	N/A	N/A (in MMI>=VII)	0m (at 00:00)	00:24	NEIC
1138225	0.5	29 Aug 2016 04:29	7.1M, 10km	N/A	N/A (in MMI>=VII)	0m (at 00:00)	00:54	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.

Tsunami affected locations

The maximum Wave height is 0.2m in Gombu, Sierra Leone. This height is estimated for 29-Aug-2016 06:18:00.

Alert	Date (UTC)	Name	Country	Wave height (m)
	29-Aug-2016 06:18:00	Gombu	Sierra Leone	0.2
	29-Aug-2016 06:18:00	Mani	Sierra Leone	0.2
	29-Aug-2016 06:18:00	Talia	Sierra Leone	0.2
	29-Aug-2016 06:18:00	Mosine	Sierra Leone	0.2
	29-Aug-2016 06:19:38	Mano_Bonjema	Sierra Leone	0.1
	29-Aug-2016 06:18:00	Dibia	Sierra Leone	0.1
	29-Aug-2016 06:18:00	Bengani	Sierra Leone	0.1
	29-Aug-2016 06:18:00	Taninahun	Sierra Leone	0.1
	29-Aug-2016 06:22:64	Latia	Liberia	0.1
	29-Aug-2016 06:22:64	Fali	Liberia	0.1
	29-Aug-2016 06:28:64	Gombia	Liberia	0.1
	29-Aug-2016 06:28:64	Jimija	Liberia	0.1
	29-Aug-2016 06:28:64	Sawilo	Liberia	0.1
	29-Aug-2016 06:28:64	Maveima	Liberia	0.1
	29-Aug-2016 07:07:38	Sopwe_Town	Liberia	0.1
	29-Aug-2016 07:07:38	Gbono_Town	Liberia	0.1
	29-Aug-2016 06:40:64	Wamba_Town	Liberia	0.1
	29-Aug-2016 06:37:38	Kpatia	Liberia	0.1
	29-Aug-2016 06:37:38	Sinje	Liberia	0.1
	29-Aug-2016 06:37:38	Mima	Liberia	0.1
	29-Aug-2016 06:16:64	Kasi	Sierra Leone	0.1
	29-Aug-2016 06:25:38	Monrovia	Liberia	0.1
	29-Aug-2016 06:24:00	Periwahun	Sierra Leone	0.1
	29-Aug-2016 06:24:00	Sembehun	Sierra Leone	0.1
	29-Aug-2016 06:24:00	Mano	Sierra Leone	0.1
	29-Aug-2016 06:24:00	Manna_Pt	Sierra Leone	0.1
	29-Aug-2016 08:00:00	Sulima	Sierra Leone	0.1
	29-Aug-2016 06:37:38	Kawinbli	Liberia	0.1
	29-Aug-2016 06:37:38	Saa	Liberia	0.1
	29-Aug-2016 06:37:38	Blama_Gogo	Liberia	0.1
	29-Aug-2016 06:37:38	Bonjebli	Liberia	0.1
	29-Aug-2016 06:46:64	Gomboja	Liberia	0.1
	29-Aug-2016 06:34:64	Scheiffelin	Liberia	0.1
	29-Aug-2016 06:34:64	Ben_Town	Liberia	0.1
	29-Aug-2016 06:52:64	Grayja	Liberia	0.1
	29-Aug-2016 06:52:64	Guazohn	Liberia	0.1
	29-Aug-2016 06:19:38	Bomi	Liberia	0.1
	29-Aug-2016 06:31:38	Congo_Town	Liberia	0.1
	29-Aug-2016 06:31:38	Sinda_Town	Liberia	0.1
	29-Aug-2016 06:31:38	Kennytown	Liberia	0.1
	29-Aug-2016 06:31:38	Gaska	Liberia	0.1
	29-Aug-2016 06:31:38	Duport	Liberia	0.1
	29-Aug-2016 06:18:00	Sembehun	Liberia	0.1
	29-Aug-2016 06:31:38	Royesville	Liberia	0.1
	29-Aug-2016 06:46:64	Kakhei	Sierra Leone	0.1
	29-Aug-2016 06:46:64	Garinga	Sierra Leone	0.1
	29-Aug-2016 06:40:64	Naiagolehun	Sierra Leone	0.1
	29-Aug-2016 06:40:64	Jabama	Sierra Leone	0.1
	29-Aug-2016 06:40:64	Dibia	Sierra Leone	0.1
	29-Aug-2016 06:34:64	Bomboja	Liberia	0.1
	29-Aug-2016 06:34:64	Wolako	Liberia	0.1
	29-Aug-2016 06:34:64	Ioto	Liberia	0.1
	29-Aug-2016 06:42:00	Saluna	Liberia	0.1
	29-Aug-2016 06:48:00	Marshall	Liberia	0.1
	29-Aug-2016 06:16:64	Toso	Liberia	0.1
	29-Aug-2016 06:22:64	Seya_Town	Liberia	0.1
	29-Aug-2016 07:12:00	Mano_Salija	Sierra Leone	0.1
	29-Aug-2016 07:01:38	Bagwu	Liberia	0.1
	29-Aug-2016 07:01:38	Gbenang	Liberia	0.1
	29-Aug-2016 07:06:00	Yonkale	Liberia	0.1
	29-Aug-2016 07:06:00	Bofuma	Liberia	0.1
	29-Aug-2016 06:37:38	Sewulu	Liberia	0.1
	29-Aug-2016 06:12:00	Gewojahun	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Walbai	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Mesima	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Bondebu	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Mano	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Vile	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Mabompa	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Mattru	Sierra Leone	0.1
	29-Aug-2016 06:12:00	Gbaan	Sierra Leone	0.1
	29-Aug-2016 06:54:00	Gbaoko	Liberia	0.1
	29-Aug-2016 06:10:64	Baba	Sierra Leone	0.1
	29-Aug-2016 06:10:64	Yile	Sierra Leone	0.1
	29-Aug-2016 06:10:64	Petewoma	Sierra Leone	0.1
	29-Aug-2016 06:10:64	Petowoma	Sierra Leone	0.1
	29-Aug-2016 06:10:64	Torma	Sierra Leone	0.1
	29-Aug-2016 07:12:00	Gbandi	Sierra Leone	0.1
	29-Aug-2016 07:31:38	Belbul	Sierra Leone	0.1
	29-Aug-2016 06:49:38	Mina	Sierra Leone	0.1
	29-Aug-2016 06:49:38	Njala	Sierra Leone	0.1
	29-Aug-2016 07:06:00	Simiyei	Sierra Leone	0.1
	29-Aug-2016 06:13:38	Kposso	Sierra Leone	0.1
	29-Aug-2016 06:13:38	Male	Sierra Leone	0.1
	29-Aug-2016 06:13:38	Folu	Sierra Leone	0.1
	29-Aug-2016 06:13:38	Latu	Sierra Leone	0.1

See full locations list (RSS)

Initial conditions

Title: "North of Ascension Island"

Fault parameters

Latitude: .1
Longitude: -17.8
Length: 79 km
Width: 22 km
Magnitude: 7.4 M

Okada parameters:

Slip: 2 m
Strike: 180 (geogr angle: north=0, south=180)
Dip: 45 degree
Rake: 90 degree
Depth: 10 km

Calculation parameters

Calculation space (lon/lat): -25.3, -7.4, -10.3, 7.6
Instead of Step -> use Cell size:1.25 minutes

Sea Level

More information

Timeline:
Tsunami calculations performed to this case, click here

Populated places affected by tsunami:
http://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2016/08/19112/locations.xml
Populated places affected by tsunami (KML):
http://webcritech.jrc.ec.europa.eu/ModellingOutput/TsunamiSurge/JETS_System/2016/08/19112/locations.kml

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

Disclaimer
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information.
The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.
The designations employed and the presentation of material on the map do not imply the expression of any opinion whatsoever on the part of the European Union concerning the legal status of any country, territory or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.