Nov 23, 2016

Green earthquake alert (5.6M,depth:10km) in Japan at 11/23/2016 9:23:37 PM

Green Earthquake in 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 5.6M, Depth:10km
  • 23 Nov 2016 21:23:37 UTC
  • 868009 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: 5.6 M
  • Depth: 10 km (very shallow)
  • Area affected by light damage (estimated radius): 17 km (MMI IV)
  • Source: NEIC NEIC
  • Location (latitude/longitude): 37.2451, 141.2964
  • Time (UTC): 23 Nov 2016 21:23:37
  • Time (ECT): 23 Nov 2016 22:23:37

Earthquake Impact Details

The earthquake happened off shore, near Japan, Region of Tohoku (population 9,984,608). The distance to the nearest coast is 24km. The nearest places are Shimo-Kitabo (25km), Ide (26km), Oragahama (26km), Kami-Shigeoka (26km), Kami-Asamigawa (27km), and 152 more.

The following vulnerable infrastructure is nearby and may be affected.

For logistics, the following access points are nearby. The nearest airports are Fukushima (runway 8200ft, 77km). The nearest ports are Onahama (48km), and Soma (71km).

The maximum altitude nearby is NaNm.

The approximate distance within which light damage may occur is 17km (equivalent to Modified Mercalli Index IV).

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

Radius Population Density (people/km2) Affected with damage
75 km 470000 people 26
50 km 110000 people 14
20 km no people 0 Likely
10 km no people 0 Very likely



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