Overall Green Earthquake alert Off-shore on 24 Apr 2024 21:26 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 4.6 Off-shore on 24 Apr 2024 21:26 UTC

Hazard models

Rapid Impact

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:	4.6M
Depth:	40.7 Km
Lat/Lon:	51.2763 , 179.9637
Event Date:	24 Apr 2024 21:26 UTC 25 Apr 2024 09:26 Local
Exposed Population:
Source:	NEIC us6000mtk8
Inserted at:	24 Apr 2024 21:45 UTC
INFORM Coping capacity of the alert score:	1.1 ()

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
NEIC	0		0
us6000mtk8	Scaled population (raster)	0
	C1 shakemap	0
	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

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
1567064		0	24 Apr 2024 21:26	4.6M, 40.7km	3.19	N/A (in MMI>=VII)		00:19	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 United States ,of Alaska (population 572,432) . The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Alert	Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
	1	0	1567064	179.78/51.153	4.5	14.7	3.727	24 Apr 2024 21:48	00:22	(new episode)
	2	0	1567064	179.975/51.226	4.3	25.7	3.185	24 Apr 2024 22:00	00:34	(upd of #1)

Affected Provinces

Intensity	Region Province	Country	Population
	Alaska	United States	no people
	Alaska	United States	no people

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
	Amchitka Island	AHT	69				0	50 km

Ports

Name	Country	Distance
Constantine Harbour	Wake Island	49 km
Amchitka Island	Wake Island	72 km
Semisopochroi	Wake Island	79 km

More information

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.