lunes, 29 de febrero de 2016

GREEN earthquake alert (5M,depth:25.46km) in Southwestern Ryukyu Isl., Japan at 2/29/2016 7:47:38 PM

Green Earthquake in Southwestern Ryukyu Isl., Japan


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 5M, Depth:25.46km
  • 29 Feb 2016 19:47:38 UTC
  • About 42543 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: 5 M
  • Depth: 25.46 km (shallow)
  • Source: NEIC
  • Location (latitude/longitude): 23.867, 123.4594
  • Time (UTC): 29 Feb 2016 19:47:38
  • Time (ECT): 29 Feb 2016 20:47:38

Earthquake Impact Details

The earthquake happened off shore, near Japan, Region of Okinawa (population 1,242,315). The distance to the nearest coast is 56km.

The following vulnerable infrastructure is nearby and may be affected.

For logistics, the following access points are nearby. The nearest airports are Hateruma (41km), and Iriomote Jima (64km). The nearest ports are Irionote Island (63km), Ishigaki (91km), and Ishigaki Island (99km).

The maximum altitude nearby is 400m. The area has steep slopes (up to 10 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 3100 people 0
50 km <1000 people 0
20 km no people 0
10 km no people 0



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.