Overall Green Earthquake alert in Puerto Rico on 29 Sep 2020 13:29 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 3.9 in Puerto Rico on 29 Sep 2020 13:29 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:	3.9M
Depth:	11 Km
Lat/Lon:	17.9475 , -67.0695
Event Date:	29 Sep 2020 13:29 UTC 29 Sep 2020 09:29 Local
Exposed Population:	1730000 people within 100km
Source:	PRICO RS pr2020273010
Inserted at:	30 Sep 2020 13:34 UTC

GDACS Score

For more info on GDACS alert score click here.

	Earthquake (Shakemap)		GDACS score
PRICO RS	0		0
pr2020273010	Scaled population (raster)	0
	C1 shakemap	-0.59
	C2 shakemap	0.53
	Country Vulnerability	0
	INFORM_normalised	1

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
1335280		0	29 Sep 2020 13:29	4.5M, 10km	3.54	N/A (in MMI>=VII)		00:17	NEIC
1335281		0	29 Sep 2020 13:29	3.9M, 11km	4.21	N/A (in MMI>=VII)		1d 00:04	PRICO RS

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 Puerto Rico ,of Mayag?ez (population 44,567) . The alertlevel for this event is GREEN

Intensity	Population
	no people

Shakemaps Timeline

Shake id #	episodeid	Lat/Lon	Magnitude	Depth	Max MMI	Date shake (UTC)	Delay (hh:mm)
1	1335280	17.852/-67.059	4.5	10.0	3.544	29 Sep 2020 13:47	00:17	(new episode)
2	1335281	17.948/-67.07	4.5	11.0	3.913	29 Sep 2020 14:30	01:00	(new episode)
3	1335281	17.948/-67.07	4.5	11.0	4.204	29 Sep 2020 15:33	02:03	(upd of #2)
4	1335281	17.948/-67.07	4.5	11.0	4.213	30 Sep 2020 13:34	1d 00:04	(upd of #3)

Affected Provinces

Intensity	Region Province	Country	Population
	Mayag?ez	Puerto Rico	45000 people

Affected populated places. Areas of interest

Name	Region Province	Country	City class	Population	Distance
Rojo Cabo	Cabo Rojo	Puerto Rico	Village	-	13 km
Boqueron	Cabo Rojo	Puerto Rico	Village	2000 people	14 km
Cabo Rojo	Cabo Rojo	Puerto Rico	Village	11000 people	18 km

see full list

Critical infrastructure

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

Airports

Name	Elevation (m)	Distance
Parguera	10	4 km
Lajas Airpark	9	7 km
Boqueron	1	11 km
Cullingford Field	4	11 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.
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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.