M 7.7 in Canada on 28 Oct 2012 03:04 UTC

Hazard models

EQ parameters
Shakemap
Tsunami

Event summary

This earthquake is expected to have a medium humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 7.7M
Depth: 20.1 Km
Lat/Lon: 52.7417 , -132.131
Event Date: 28 Oct 2012 03:04 UTC
27 Oct 2012 20:04 Local
Exposed Population:
About 2000 people within 100km
Source: NEIC usb000df7n
Inserted at: 02 Feb 2017 13:11 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake Tsunami GDACS score
NEIC 1.5 0.3 1.5
usb000df7n Scaled population (vector) n.a Max wave scenario 0m  
  C1 earthquake n.a Max wave realtime 0.36m  
  C2 earthquake n.a      
  Country Vulnerability n.a      
  INFORM_normalised n.a      
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
120503 0.5 28 Oct 2012 03:04 7.1M, 19km N/A 3 thousand (in 100km) 0.3m (at 02:54) 00:06 NEIC
120504 0.5 28 Oct 2012 03:04 7.3M, 10km N/A 2 thousand (in 100km) 0.6m (at 00:00) 1558d 10:07 NEIC
120505 0.1 28 Oct 2012 03:04 7.7M, 9.9km N/A 2 thousand (in 100km) 0.2m (at 03:06) 1558d 10:07 NEIC
120506 0.5 28 Oct 2012 03:04 7.6M, 10km N/A 2 thousand (in 100km) 0.6m (at 00:04) 00:21 NEIC
120508 0.3 28 Oct 2012 03:04 7.7M, 17.5km N/A 2 thousand (in 100km) 0.3m (at 02:18) 1558d 10:07 NEIC
120631 1.5 28 Oct 2012 03:04 7.7M, 20.1km N/A 2 thousand (in 100km) 0.4m (at 02:18) 1558d 10:07 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 , Province of British Columbia (population 3,415,527) . The nearest places are Tasu, Lockeport, Pacofi, Aero, Alliford Bay, Queen Charlotte, Skidegate, Sandspit, and Haida.

Radius Population
100 km 2100 people
75 km 2000 people
50 km <1000 people
20 km no people
10 km no people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
British Columbia Canada 3.4 million people

Affected populated places

Name Region Province Country City class Population Distance
Tasu British Columbia Canada Village - 7 km
Lockeport British Columbia Canada Village - 20 km
Pacofi British Columbia Canada Village - 21 km
Aero British Columbia Canada Village - 36 km
Alliford Bay British Columbia Canada Village - 52 km
Queen Charlotte British Columbia Canada Village - 57 km
Skidegate British Columbia Canada Village - 59 km
Sandspit British Columbia Canada Village - 59 km
Haida British Columbia Canada Village - 67 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Queen Charlotte Is ZQS unknown 0 30 km
Sandspit YZP 6 Civ. Paved Yes 5100 61 km

Ports

Name LOCODE Country Distance
Queen Charlotte CASKI Canada 57 km
Sandspit Canada 61 km

More information

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