M 4.6 in Costa Rica on 05 Sep 2012 22:46 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: 4.6M
Depth: 37.3 Km
Lat/Lon: 10.1294 , -85.4112
Event Date: 05 Sep 2012 22:46 UTC
05 Sep 2012 16:46 Local
Exposed Population:
560000 people within 100km
Source: NEIC usc000cggr
Inserted at: 05 Sep 2012 23:06 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000cggr 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
119355 0.5 05 Sep 2012 22:46 4.6M, 37.3km N/A 560 thousand (in 100km) 00:19 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 Costa Rica , Province of Guanacaste (population 226,557) . The nearest places are San José, Nicoya, Mansión, and Los Ángeles.

Radius Population
100 km 560000 people
75 km 370000 people
50 km 210000 people
20 km 47000 people
10 km 20000 people
5 km 9700 people
2 km 1200 people

Affected Provinces

Region Province Country Population
Guanacaste Costa Rica 230000 people

Affected populated places

Name Region Province Country City class Population Distance
Nicoya Guanacaste Costa Rica City 15000 people 5 km
Los Ángeles Guanacaste Costa Rica Village - 5 km
Mansión Guanacaste Costa Rica Village - 6 km
San José San José Costa Rica Capital 330000 people 147 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
Nicoya 120 4 km
Nicoya Guanacaste NCT unknown 10 km
Playa Samara PLD unknown 13 km

Ports

Name LOCODE Country Distance
Puntarenas CRPAS Costa Rica 65 km
Caldera CRCAL Costa Rica 80 km

Dams

Reservoir Dam Name River Year Distance
Arenal Arenal Arenal 1978 81 km

More information

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