M 5.8 in Samoa on 22 Oct 2019 04:18 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: 5.8M
Depth: 10 Km
Lat/Lon: -15.1979 , -173.0498
Event Date: 22 Oct 2019 04:18 UTC
21 Oct 2019 16:18 Local
Exposed Population: No people within 100km
Source: NEIC us70005x1t
Inserted at: 23 Oct 2019 04:25 UTC
INFORM Coping capacity of the alert score: 1.1 (Samoa)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us70005x1t 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
1275633 0 22 Oct 2019 04:18 6M, 89.1km N/A No people affected (in 100km) 00:09 PTWC
1275636 0 22 Oct 2019 04:18 5.8M, 10km 3.58 N/A (in MMI>=VII) 1d 00:06 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
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1275636 -15.198/-173.05 5.8 10.0 3.557 22 Oct 2019 04:39 00:21 (new episode)
2 0 1275636 -15.198/-173.05 5.8 10.0 3.557 22 Oct 2019 06:20 02:01 (upd of #1)
3 0 1275636 -15.198/-173.05 5.8 10.0 3.557 22 Oct 2019 06:47 02:28 (upd of #2)
4 0 1275636 -15.198/-173.05 5.8 10.0 3.585 23 Oct 2019 04:25 1d 00:06 (upd of #3)

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.