M 5.5 in Japan on 15 Sep 2018 16:24 UTC
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: 5.5M
Depth: 10 Km
Lat/Lon: 26.5641 , 129.522
Event Date: 15 Sep 2018 16:24 UTC
Exposed Population: No people within 100km
Source: NEIC us2000hf73
Inserted at: 15 Sep 2018 16:43 UTC
INFORM Coping capacity of the alert score: 1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)
GDACS score
NEIC 0 0
us2000hf73 Scaled population (vector) 0  
  C1 shakemap -0.59  
  C2 shakemap 0.53  
  Country Vulnerability 0  
  INFORM_normalised 1  
Maximum expected impact using different data sources.

ShakeMap is a product of the USGS Earthquake Hazards Program in conjunction with the regional seismic networks. ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.


Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1228435 0 15 Sep 2018 16:24 5.5M, 10km 3.12 No people affected 00:18 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
* 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 Japan ,of Okinawa (population 1,242,315) . The alertlevel for this event is GREEN

Intensity Population
no people


Shakemaps Timeline

AlertShake id #ScoreepisodeidLat/LonMagnitudeDepthMax MMIDate shake (UTC)Delay (hh:mm) 
1 0 1228435 26.564/129.522 5.5 10 3.08 15 Sep 2018 16:44 00:20 (new episode)
2 0 1228435 26.564/129.522 5.5 10 3.12 15 Sep 2018 18:27 02:02 (upd of #1)

Affected Provinces

Intensity Region Province Country Population
Okinawa Japan 1 million people
Kyushu Japan 19000 people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Ashito Okinawa Japan Village5 - 119 km
Ada Okinawa Japan Village5 - 122 km
Wadomari Okinawa Japan Village5 - 126 km
Kunigami Okinawa Japan Village5 - 126 km
China Okinawa Japan Village5 - 127 km
Hedo Okinawa Japan Village5 - 128 km
Tamina Okinawa Japan Village5 - 133 km
Kaata Okinawa Japan Village5 - 134 km
Isen Okinawa Japan Village5 - 135 km
Kametsu Okinawa Japan Village5 - 139 km
Obo Okinawa Japan Village5 - 140 km
Ogimi Okinawa Japan Village5 - 140 km
Itokina Okinawa Japan Village5 - 141 km
Teima Okinawa Japan Village5 - 145 km
Setaki Okinawa Japan Village5 - 147 km
Nakao Okinawa Japan Village5 - 150 km
Nago Okinawa Japan Village4 59000 people 154 km
Okamae Okinawa Japan Village5 - 154 km
Kin Okinawa Japan Village5 - 160 km
Toguchi Okinawa Japan Village5 - 162 km
Tana Okinawa Japan Village5 - 162 km
Henna Okinawa Japan Village5 - 163 km
Izena Okinawa Japan Village5 - 163 km
Ikechi Okinawa Japan Village5 - 165 km
Yoro Okinawa Japan Village5 - 167 km
Ishikawa Okinawa Japan Village5 22000 people 170 km
Ikenma Okinawa Japan Village5 - 171 km
Higashieue Okinawa Japan Village5 - 171 km
Osai Okinawa Japan Village5 - 173 km
Atsuta Okinawa Japan Village5 - 174 km
Sukomo Okinawa Japan Village5 - 176 km
Fusozaki Okinawa Japan Village5 - 177 km
Kadena Okinawa Japan Village5 - 177 km
Katoku Okinawa Japan Village5 - 180 km
Saneku Okinawa Japan Village5 - 182 km
Ishimine Okinawa Japan Village5 - 183 km
Naha Okinawa Japan City 290000 people 187 km
Nakaza Okinawa Japan Village5 - 187 km
Chifuwa Okinawa Japan Village5 - 190 km
Itoman Okinawa Japan Village4 56000 people 191 km

see full list


Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Intensity Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft)
Yoron RNJ 16 Civ. Paved Yes 3900
Okierabu OKE 31 Civ. Paved Yes 3900
Tokunoshima TKN 5 Civ. Paved Yes 6500
Ie Jima IEJ 75 Civ. Paved No 4900
Kadena AB DNA 45 Mil. Paved Yes 12100
Futenma Mcas 75 Mil. Paved Yes 9000
Naha OKA 5 Civ. Paved Yes 9800

Ports

Intensity Name LOCODE Country
Oku Japan
Kin Wan JPKIN Japan
Nakagusuku Wan Japan
Heianza JPHEI Japan
Nishihara JPNHR Japan
Naha JPNAH Japan

Dams

Intensity Reservoir Dam Name River Year
Kannako Kanna Kannafukujigawa 1993
Okukubi Okukubigawa 2001
Zukeyama Kurashiki Yonabarugawa 1995

More information

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