sábado, 31 de octubre de 2015

GREEN earthquake alert (4.6M,depth:15.6km) in Costa Rica at 10/31/2015 3:10:14 PM

Green Earthquake in Costa Rica


Population Density near epicenter (people/km2). Image area: 6x4 decimal degrees (approx. 650x450km2).


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:15.6km
  • 31 Oct 2015 15:10:14 UTC
  • 3383560 people within 100km

Whether international humanitarian aid is needed must be decided by an expert.

See the GDACS website for live news coverage (including OCHA Situation Reports), the full earthquake report

For information on emergency response, please consult the GDACS Virtual OSOCC.


Earthquake Event


  • Magnitude: 4.6 M
  • Depth: 15.6 km (shallow)
  • Source: NEIC
  • Location (latitude/longitude): 10.1586, -83.9866
  • Time (UTC): 31 Oct 2015 15:10:14
  • Time (ECT): 31 Oct 2015 16:10:14

Earthquake Impact Details

The earthquake happened inCosta Rica, Province of San Jose (population 1,218,925). The nearest places are Carrillo (8km), Finca Laguna (9km), and San Jos� (320000 people , 27km).

The following vulnerable infrastructure is nearby and may be affected. The nearest hydrodams are Cachi (40km). The nearest protected areas are Braulio Carrillo (0km), Cordillera Volc�nica Central (1km), Cubujuqu� (8km), Cerro Dantas (9km), Jaguarandi (11km), and 5 more.

For logistics, the following access points are nearby. The nearest airports are Guapiles (runway 3600ft, 22km), Rio Frio (22km), and Tobias Bolanos International (runway 3200ft, 27km). The nearest ports are Quepos (Puerto Quepos) (83km), and Caldera (84km).

The maximum altitude nearby is 3600m. The area has steep slopes (up to 50 percent) and may be susceptible to landslides.

The population near the earthquake is shown in the table below.

Radius Population Density (people/km2)
75 km 3 million people 172
50 km 2.6 million people 339
20 km 73000 people 58
10 km <1000 people 1



While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information. The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website. Please refer to the GDACS website for subscribing or unsubscribing from the earthquake alert email or SMS service.