M 4.5 in Costa Rica on 18 Sep 2012 19:10 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: 44.2 Km
Lat/Lon: 9.792 , -85.561
Event Date: 18 Sep 2012 19:10 UTC
18 Sep 2012 13:10 Local
Exposed Population:
380000 people within 100km
Source: NEIC usc000crbn
Inserted at: 18 Sep 2012 20:11 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0.5 0.5
usc000crbn 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
119704 0.5 18 Sep 2012 19:10 4.5M, 44.2km N/A 380 thousand (in 100km) 01:00 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, and Sámara.

Radius Population
100 km 400000 people
75 km 190000 people
50 km 95000 people
20 km 3400 people
10 km <1000 people
5 km no people
2 km no people

Affected Provinces

Region Province Country Population
Guanacaste Costa Rica 230000 people

Affected populated places

Name Region Province Country City class Population Distance
Sámara Guanacaste Costa Rica Village - 7 km
San José San José Costa Rica Capital 330000 people 162 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
Carrillo RIK 2 Civ. Unpaved No 3900 9 km
Nosara NOB 10 Civ. Paved No 3200 21 km

Ports

Name LOCODE Country Distance
Puntarenas CRPAS Costa Rica 79 km
Caldera CRCAL Costa Rica 92 km

More information

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