M 6.2 in Japan from 28 Mar 2023 09:18 UTC to 09:18

Hazard models

Rapid Impact
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: 6.2M
Depth: 30.947 Km
Lat/Lon: 41.147 , 142.799
Event Date: 28 Mar 2023 09:18 UTC
28 Mar 2023 19:18 Local
Exposed Population: 30 thousand in MMI IV
Source: NEIC us6000k09q
Inserted at: 28 Mar 2023 09:40 UTC
INFORM Coping capacity of the alert score: 1.1 (Japan)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Shakemap)		 Tsunami GDACS score
NEIC 0 0 0
us6000k09q Scaled population (raster) 0 Max wave alert 0m  
  C1 shakemap 0 Max wave realtime 0m  
  C2 shakemap 0      
  Country Vulnerability 0      
  INFORM_normalised 0      
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
1497767 0 28 Mar 2023 09:18 6.2M, 30.947km 3.91 N/A (in MMI>=VII) 0m (at 00:00) 00:22 NEIC
1497771 0 28 Mar 2023 09:18 6M, 34km 3.77 N/A (in MMI>=VII) 01:17 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 Japan ,of Tohoku (population 9,984,608) . 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 1497767 142.799/41.147 6.2 30.9 3.91 28 Mar 2023 09:45 00:26 (new episode)
2 0 1497771 142.805/41.148 6 34 3.768 28 Mar 2023 10:40 01:22 (new episode)
3 0 1497771 142.805/41.148 6 34 3.768 28 Mar 2023 11:24 02:05 (upd of #2)
4 0 1497771 142.805/41.148 6 34 3.768 29 Mar 2023 09:40 1d 00:21 (upd of #3)

Affected Provinces

Intensity Region Province Country Population
Hokkaido Japan 200000 people
Tohoku Japan 720000 people
Tohoku Japan no people

Affected populated places. Areas of interest

Intensity Name Region Province Country City class Population Distance
Erimo Hokkaido Japan Village - 95 km
Horoizumi Hokkaido Japan Village - 101 km
Chipira Hokkaido Japan Village - 105 km
Kurambetsu Hokkaido Japan Village - 105 km
Samani Hokkaido Japan Village - 110 km
Urakawa Hokkaido Japan Village - 112 km
Nishicha Hokkaido Japan Village - 114 km
Shiriya Aomori Japan Village - 117 km
Ogifushi Hokkaido Japan Village - 117 km
Onitoppu Hokkaido Japan Village - 118 km
Kodanosawa Aomori Japan Village - 118 km
Tomari Aomori Japan Village - 119 km
Sarugamori Aomori Japan Village - 119 km
Shikkari Aomori Japan Village - 119 km
Dedo Aomori Japan Village - 120 km
Rokkasho Aomori Japan Village - 122 km
Kerimabu Hokkaido Japan Village - 123 km
Kawajiri Iwate Japan Village - 123 km
Kanahama Aomori Japan Village - 123 km
Kurauchi Aomori Japan Village - 124 km
Taneichi Iwate Japan Village - 124 km
Utabue Hokkaido Japan Village - 125 km
Tanichito Aomori Japan Village - 127 km
Chikagawa Aomori Japan Village - 127 km
Uge Iwate Japan Village - 128 km
Hachinohe Aomori Japan City 240000 people 128 km
Ichikawa Aomori Japan Village - 128 km
Mena Aomori Japan Village - 129 km
Yokohama Aomori Japan Village - 130 km
Furumagi Aomori Japan Village - 131 km
Misawa Aomori Japan Village 43000 people 131 km
Ogara Aomori Japan Village - 132 km
Sabishiro Aomori Japan Village - 132 km
Hiroo Hokkaido Japan Village - 133 km
Tanabu Aomori Japan Village - 134 km
Higashi-shizunai Hokkaido Japan Village - 134 km
Akedo Iwate Japan Village - 134 km
Mutsu Aomori Japan Village 49000 people 134 km
Tashiro Aomori Japan Village - 135 km
Sekine Aomori Japan Village - 135 km
Mita Aomori Japan Village - 136 km
Ominato Aomori Japan Village - 136 km
Kuji Iwate Japan Village - 136 km
Shizunai Hokkaido Japan Village 22000 people 137 km
Arito Aomori Japan Village - 137 km
Kudschi Iwate Japan Village - 138 km
Ono Iwate Japan Village - 138 km
Futatsuya Iwate Japan Village - 138 km
Ohata Aomori Japan Village - 140 km
Kami-notsuka Hokkaido Japan Village - 140 km
Niikappu Hokkaido Japan Village - 141 km
Ogida Aomori Japan Village - 141 km
Jogasawa Aomori Japan Village - 142 km
Noda Iwate Japan Village - 142 km
Ichinosawa Aomori Japan Village - 142 km
Toyoni Hokkaido Japan Village - 142 km
Mikkamachi Iwate Japan Village - 143 km
Sariwarabe Hokkaido Japan Village - 143 km
Noheji Aomori Japan City - 144 km
Gonohe Aomori Japan Village - 144 km
Fujishima Aomori Japan Village - 145 km
Tanosawa Aomori Japan Village - 146 km
Noda-Tamagawa Iwate Japan Village - 146 km
Karumai Iwate Japan Village - 146 km
Kenyoshi Aomori Japan Village - 146 km
Shimoburo Aomori Japan Village - 146 km
Sambongi Aomori Japan Village - 146 km
Shichinohe Aomori Japan Village - 147 km
Fudai Iwate Japan Village - 148 km
Atsugacho Hokkaido Japan Village - 148 km
Shimizugawa Aomori Japan Village - 148 km
Sannohe Aomori Japan Village - 149 km
Tegurabashi Aomori Japan Village - 151 km
Kawauchi Aomori Japan Village - 151 km
Shimanokoe Iwate Japan Village - 153 km
Horyo Aomori Japan Village - 154 km
Shikada Aomori Japan Village - 154 km
Esashika Iwate Japan Village - 154 km
Taiki Hokkaido Japan Village - 155 km
Ikokuma Aomori Japan Village - 156 km
Aiboshima Hokkaido Japan Village - 156 km
Kominato Aomori Japan Village - 157 km
Oda Hokkaido Japan Village - 158 km
Netanai Hokkaido Japan Village - 158 km
Todohokke Hokkaido Japan Village - 158 km
Shukunobe Aomori Japan Village - 160 km
Mombetsu Hokkaido Japan Village - 160 km
Showa Hokkaido Japan Village - 160 km
Omoto Iwate Japan Village - 161 km
Churui Hokkaido Japan Village - 163 km
Oma Aomori Japan Village - 163 km
Mora Aomori Japan Village - 164 km
Kawamukai Hokkaido Japan Village - 165 km
Takko Aomori Japan Village - 165 km
Wakinosawa Aomori Japan Village - 166 km
Shimizugashira Aomori Japan Village - 167 km
Moto-sarabetsu Hokkaido Japan Village - 167 km
Naka-satsunai Hokkaido Japan Village - 170 km
Oikamanae Hokkaido Japan Village - 171 km
Mukawa Hokkaido Japan Village - 174 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) Distance
Misawa Naf MSJ 36 Mil. Paved Yes 10000 130 km
Hachinohe HHE 46 Mil. Paved Yes 7300 130 km

Ports

Intensity Name LOCODE Country Distance
Samani JPSAM Japan 109 km
Hachinohe JPHHE Japan 125 km
Tokachi JPTOK Japan 130 km
Ominato JPOMT Japan 137 km
Fudai Japan 147 km
Ohata Japan 151 km
Otsu JPOTU Japan 186 km

Dams

Intensity Reservoir Dam Name River Year Distance
Horomanko Horomangawadaisan Horomangawa 1954 111 km
Samaniko Samani Samanigawa 1974 116 km
Yukiyagawa Yukiyagawa Yukiyagawa 1976 144 km

Nuclear plants

Intensity Name Country Reactors Distance
HIGASHI DORI JAPAN 1 125 km

More information

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