Overall Green Earthquake alert Off-shore on 21 Oct 2002 21:24 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 3.6 Off-shore on 21 Oct 2002 21:24 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:	3.6M
Depth:	Km
Lat/Lon:	54.42 , -163.85
Event Date:	21 Oct 2002 21:24 UTC
Exposed Population:
Source:	NEIC
Inserted at:	01 Jan 1900 00:00 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0.5		0.5
	Scaled population (vector)	n.a
	C1 earthquake	n.a
	C2 earthquake	n.a
	Country Vulnerability	n.a
	INFORM_normalised	n.a

Maximum expected impact using different data sources.

Episode Timeline

ID	Alert	Score	Date	Mag, Depth	MMI*	Population**	Tsunami risk***	Delay (hh:mm)	Source
513		0.5	21 Oct 2002 21:24	3.6M, 10km	N/A	No people affected (in 100km)		-21:-24	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 , State of Alaska (population 572,432) . The nearest places are Ikatan, False Pass, Morzhovoi, and Sanak.

Radius	Population
100 km	<1000 people
75 km	<1000 people
50 km	<1000 people
20 km	no people
10 km	no people
5 km	no people
2 km	no people

Affected Provinces

Region Province	Country	Population
Alaska	United States	570000 people

Affected populated places

Name	Region Province	Country	City class	Population	Distance
Ikatan	Alaska	United States	Village	-	50 km
False Pass	Alaska	United States	Village	<1000 people	55 km
Morzhovoi	Alaska	United States	Village	-	64 km
Sanak	Alaska	United States	Village	-	68 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name	IATA Code	Elevation (m)	Usage	Runway type	IFR	Runway Length (ft)	Distance
False Pass	KFP	6				0	56 km
Cape Sarichef	CSH	89	Civ.	Unpaved	No	3500	71 km
Pauloff Harbor	KPH	unknown				0	75 km

Ports

Name	Country	Distance
Unimak	Wake Island	44 km
Sanak Island	Wake Island	67 km
Fort Randal	Wake Island	86 km

More information

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

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