M 5.5 in Solomon Is. on 27 Feb 2023 09:50 UTC

Hazard models

Rapid Impact
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: 5.5M
Depth: 83.403 Km
Lat/Lon: -11.2688 , 166.2826
Event Date: 27 Feb 2023 09:50 UTC
27 Feb 2023 20:50 Local
Exposed Population: 20 thousand in MMI IV
Source: NEIC us6000jrwn
Inserted at: 27 Feb 2023 10:11 UTC
INFORM Coping capacity of the alert score: 1.1 (Solomon Is.)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 GDACS score
NEIC 0 0
us6000jrwn Scaled population (raster) 0  
  C1 shakemap 0  
  C2 shakemap 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
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
1492469 0 27 Feb 2023 09:50 5.5M, 83.403km 4.14 N/A (in MMI>=VII) 00:21 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 Solomon Islands ,of Solomon Is. (population 6,078) . 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 1492469 166.283/-11.269 5.5 83.4 4.14 27 Feb 2023 10:16 00:26 (new episode)
2 0 1492469 166.283/-11.269 5.5 83.4 4.14 27 Feb 2023 11:55 02:04 (upd of #1)
3 0 1492469 166.283/-11.269 5.5 83.4 4.14 28 Feb 2023 10:40 1d 00:49 (upd of #2)

Affected Provinces

Intensity Region Province Country Population
Solomon Is. Solomon Islands 6100 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Nimbau Solomon Islands Village - 18 km
Avita Solomon Islands Village - 20 km
Asimboa Solomon Islands Village - 20 km
Apakhö Solomon Islands Village - 21 km
Tanabili Solomon Islands Village - 27 km
Malombo Solomon Islands Village - 27 km
Nama Solomon Islands Village - 67 km
Vana Solomon Islands Village - 68 km
Nonea Solomon Islands Village - 68 km
Masoko Solomon Islands Village - 68 km
Neembuna Solomon Islands Village - 69 km
Lale Solomon Islands Village - 69 km
Noli Solomon Islands Village - 69 km
Vanikoro Is Solomon Islands Village - 73 km
Noka Solomon Islands Village - 73 km
Nemboe Solomon Islands Village - 74 km
Taepe Solomon Islands Village - 75 km
Peu Solomon Islands Village - 75 km
Menamini Solomon Islands Village - 76 km
Arambu Solomon Islands Village - 77 km
Nuela Solomon Islands Village - 78 km
Malemgeulu Solomon Islands Village - 79 km
Foa Solomon Islands Village - 80 km
Menelu Solomon Islands Village - 80 km
Nudung Solomon Islands Village - 81 km
Malue Solomon Islands Village - 82 km
Nevea Solomon Islands Village - 82 km
Buma Solomon Islands Village - 83 km
Matamotu Solomon Islands Village - 83 km
Numbuko Solomon Islands Village - 84 km
Vanikoro Solomon Islands Village - 84 km
Trevanion Solomon Islands Village - 86 km
Oeili Solomon Islands Village - 86 km
Bema Solomon Islands Village - 86 km
Lomlom Solomon Islands Village - 107 km
Nuali Solomon Islands Village - 109 km
Namania Solomon Islands Village - 110 km
Lipe Solomon Islands Village - 111 km
Tuo Solomon Islands Village - 112 km
Malapu Solomon Islands Village - 118 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
Santa Cruz SCZ unknown 0 73 km

Ports

Intensity Name LOCODE Country Distance
Peu Soloman Islands 76 km
Graciosa Bay Soloman Islands 76 km

More information

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