M 5.5 in Canada on 17 Sep 2023 11:28 UTC
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: 10 Km
Lat/Lon: 50.7944 , -130.2998
Event Date: 17 Sep 2023 11:28 UTC
17 Sep 2023 02:28 Local
Exposed Population:
Source: NEIC us7000kwaz
Inserted at: 17 Sep 2023 11:49 UTC
INFORM Coping capacity of the alert score: 1.1 (Canada)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
GDACS score
NEIC 0 0
us7000kwaz 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
1525832 0 17 Sep 2023 11:28 5.8M, 12km 6.53 No people affected (in 100km) 00:05 NTWC
1525835 0 17 Sep 2023 11:28 5.5M, 10km 3.19 N/A (in MMI>=VII) 00:21 NEIC
1525836 0 17 Sep 2023 11:28 5.6M, 10km 3.06 N/A (in MMI>=VII) 00:33 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 Canada ,of British Columbia (population 29) . 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 1525835 -130.3/50.794 5.5 10 3.452 17 Sep 2023 11:52 00:24 (new episode)
2 0 1525836 -130.299/50.796 5.6 10 3.55 17 Sep 2023 12:04 00:36 (new episode)
3 0 1525836 -130.299/50.796 5.6 10 3.458 17 Sep 2023 12:22 00:54 (upd of #2)
4 0 1525836 -130.299/50.796 5.6 10 3.458 17 Sep 2023 13:33 02:05 (upd of #3)
5 0 1525836 -130.299/50.796 5.6 10 3.458 18 Sep 2023 12:40 1d 01:12 (upd of #4)
6 0 1525836 -130.334/50.808 5.5 10 3.359 30 Sep 2023 23:52 13d 12:24 (upd of #5)

Affected Provinces

Intensity Region Province Country Population
British Columbia Canada <1000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Holberg British Columbia Canada Village - 163 km
Quatsino British Columbia Canada Village - 192 km

see full list


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.