Overall Green Earthquake alert in United States on 18 Dec 2016 16:30 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 4.5 in United States on 18 Dec 2016 16:30 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:	4.5M
Depth:	36.526 Km
Lat/Lon:	18.41 , -155.5172
Event Date:	18 Dec 2016 16:30 UTC 18 Dec 2016 06:30 Local
Exposed Population:	About 7000 people within 100km
Source:	NEIC us200082cz
Inserted at:	18 Dec 2016 18:27 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake		GDACS score
NEIC	0		0
us200082cz	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.

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	Date	Mag, Depth	MMI*	Population**	Delay (hh:mm)	Source
1151117	18 Dec 2016 16:30	4.5M, 7.6km	N/A	5 thousand (in 100km)	00:06	PTWC
1151122	18 Dec 2016 16:30	4.53M, 36.526km	2.57	7 thousand (in 100km)	01:03	HVO
1151123	18 Dec 2016 16:30	4.5M, 20.69km	2.96	8 thousand (in 100km)	01:17	NEIC
1151128	18 Dec 2016 16:30	4.5M, 36.526km	3.51	7 thousand (in 100km)	01:56	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

Shakemaps Timeline

Alert	Shake id #	Score	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
	1	0	1151123	18.508/-155.564	4.5	20.69	2.96	18 Dec 2016 17:49	01:19	(new episode)
	2	0	1151128	18.41/-155.517	4.5	36.526	3.51	18 Dec 2016 18:28	01:57	(new episode)

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
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.