M 5.3 Off-shore on 08 Apr 2021 01:00 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: 5.3M
Depth: 10 Km
Lat/Lon: -28.9739 , -176.3436
Event Date: 08 Apr 2021 01:00 UTC
07 Apr 2021 13:00 Local
Exposed Population: No people within 100km
Source: NEIC us6000dzw2
Inserted at: 08 Apr 2021 21:36 UTC
INFORM Coping capacity of the alert score: 1.1 ()

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000dzw2 Scaled population (vector) 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
1369097 0 08 Apr 2021 01:00 5.4M, 10km 2.21 No people affected (in 100km) 00:19 NEIC
1369209 0 08 Apr 2021 01:00 5.3M, 10km 2.13 N/A (in MMI>=VII) 20:35 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

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1369097 -29.054/-176.367 5.4 10.0 2.746 08 Apr 2021 01:21 00:20 (new episode)
2 0 1369097 -29.054/-176.367 5.4 10.0 2.214 08 Apr 2021 02:03 01:02 (upd of #1)
3 0 1369097 -29.054/-176.367 5.4 10.0 2.214 08 Apr 2021 03:04 02:03 (upd of #2)
4 0 1369209 -28.974/-176.344 5.3 10.0 2.131 08 Apr 2021 21:31 20:30 (new episode)
5 0 1369209 -28.974/-176.344 5.3 10.0 2.131 09 Apr 2021 01:04 1d 00:03 (upd of #4)

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.