M 4.05 in Puerto Rico on 29 Aug 2020 16:33 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: 4.1M
Depth: 7 Km
Lat/Lon: 17.9626 , -66.9743
Event Date: 29 Aug 2020 16:33 UTC
29 Aug 2020 12:33 Local
Exposed Population: Less then 100 people in MMI V
2200000 people within 100km
Source: PRICO RS pr2020242004
Inserted at: 29 Aug 2020 18:37 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
PRICO RS 0 0
pr2020242004 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

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1329165 0.1 29 Aug 2020 16:33 4.5M, 6.9km N/A 2.3 million (in 100km) 00:09 PTWC
1329167 0 29 Aug 2020 16:33 4.3M, 10km 4.39 N/A (in MMI>=VII) 00:16 NEIC
1329170 0 29 Aug 2020 16:33 4.05M, 7km 4.43 N/A (in MMI>=VII) 02:03 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 1,271) . The alertlevel for this event is GREEN

Intensity Population
<1000 people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1329167 17.949/-66.977 4.3 10.0 4.39 29 Aug 2020 16:53 00:19 (new episode)
2 0 1329170 17.949/-66.977 4.3 10.0 4.444 29 Aug 2020 18:37 02:03 (new episode)
3 0 1329170 17.949/-66.977 4.3 10.0 4.429 30 Aug 2020 16:37 1d 00:03 (upd of #2)

Affected Provinces

Intensity Region Province Country Population
Mayag?ez Puerto Rico 59000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Ensenada Guanica Puerto Rico Village - 4 km
Guanica Guanica Puerto Rico Village 9200 people 7 km
Machuchal Sabana Grande Puerto Rico Village - 10 km
Lajas Lajas Puerto Rico Village 5000 people 13 km
San German San German Puerto Rico Village 12000 people 15 km

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
Parguera 10 0 8 km
Lajas Airpark 9 0 12 km
Boqueron 1 0 19 km

More information

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