M 4.5 Off-shore on 04 Jan 2015 03:18 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: 4.5M
Depth: 6 Km
Lat/Lon: 34.565 , -118.636
Event Date: 04 Jan 2015 03:18 UTC
03 Jan 2015 19:18 Local
Exposed Population:
No people within 100km
Source: USGS at00nhmui8
Inserted at: 04 Jan 2015 03:25 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
USGS 0 0
at00nhmui8 Scaled population (vector) n.a  
  C1 earthquake n.a  
  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
1068705 0 04 Jan 2015 03:18 4.5M, 8.91km N/A No people affected (in 100km) 00:06 NEIC
1068706 0 04 Jan 2015 03:18 4.5M, 6km N/A No people affected (in 100km) 00:07 USGS
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 United States , State of California (population 30,971,320) . The nearest places are Los Angeles, and Naylor Place.

Radius Population
100 km 10.8 million people
75 km 5.6 million people
50 km 1.6 million people
20 km 35000 people
10 km <1000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
California United States 31 million people

Affected populated places

Name Region Province Country City class Population Distance
Naylor Place California United States Village - 4 km
Los Angeles California United States Major city 3.7 million people 76 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
Castaic Dam 463 12 km
Camp 14 570 15 km
Sheriff's Wayside 366 17 km
Quail Lake Sky Park 1027 19 km

Ports

Name LOCODE Country Distance
Ventura Wake Island 72 km
Hueneme Wake Island 74 km

Dams

Reservoir Dam Name River Year Distance
Elderberry Castaic Creek 1974 6 km
Castaic Castaic Creek 1973 11 km
Pyramid Piru Creek 1974 13 km

More information

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