M 4.6 in Japan on 30 Jul 2016 07:40 UTC

Hazard models

EQ parameters
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: 4.6M
Depth: 33.74 Km
Lat/Lon: 35.9169 , 140.5832
Event Date: 30 Jul 2016 07:40 UTC
30 Jul 2016 16:40 Local
Exposed Population:
15699663 people within 100km
Source: NEIC us100068q4
Inserted at: 30 Jul 2016 08:15 UTC

GDACS Score

For more info on GDACS alert score click here.
  Earthquake GDACS score
NEIC 0 0
us100068q4 Scaled population (vector) n.a  
  C1 earthquake n.a  
  C2 earthquake n.a  
  Country Vulnerability n.a  
  INFORM_normalised n.a  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1135286 0 30 Jul 2016 07:40 4.6M, 33.74km N/A 15.7 million (in 100km) 00:34 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 , Region of Kanto (population 38,543,000) . The nearest places are Idako, Ushibori, Obunatsu, Kyuchu, Kashima, Omigawa, Okunoya, Itako, Nekoya, Negoya, and Yokohama.

Radius Population
100 km 27.5 million people
75 km 11.8 million people
50 km 2.8 million people
20 km 340000 people
10 km 180000 people
5 km 35000 people
2 km 3300 people

Affected Provinces

Region Province Country Population
Kanto Japan 38.5 million people

Affected populated places

Name Region Province Country City class Population Distance
Idako Ibaraki Japan Village - 4 km
Ushibori Ibaraki Japan Village - 6 km
Obunatsu Ibaraki Japan Village - 6 km
Kyuchu Ibaraki Japan Village - 7 km
Kashima Ibaraki Japan Village 65000 people 7 km
Omigawa Chiba Japan City 25000 people 7 km
Okunoya Ibaraki Japan Village - 10 km
Itako Ibaraki Japan Village 25000 people 11 km
Nekoya Ibaraki Japan Village - 12 km
Negoya Ibaraki Japan Village - 12 km
Koya Ibaraki Japan Village - 13 km
Omi Ibaraki Japan Village - 13 km
Narage Ibaraki Japan Village - 14 km
Aso Ibaraki Japan Village - 14 km
Aonuma Ibaraki Japan Village - 14 km
Aotsuka Ibaraki Japan Village - 15 km
Kansaki Chiba Japan Village - 16 km
Hamatsuga Ibaraki Japan Village - 16 km
Yoshikawa Ibaraki Japan Village - 16 km
Yamada Ibaraki Japan Village - 17 km
Oshita Ibaraki Japan Village - 18 km
Koda Ibaraki Japan Village - 18 km
Fuda Ibaraki Japan Village - 18 km
Ino Chiba Japan Village - 19 km
Obata Ibaraki Japan Village - 19 km
Kyochikama Ibaraki Japan Village - 20 km
Kubo Ibaraki Japan Village - 20 km
Taiyo Ibaraki Japan Village - 20 km
Inoue Ibaraki Japan Village - 20 km
Kofunatsu Ibaraki Japan Village - 21 km
Oyama Ibaraki Japan Village - 22 km
Yatabe Ibaraki Japan Village - 22 km
Muyokama Ibaraki Japan Village - 22 km
Tako Chiba Japan City - 23 km
Asahi Yokaichiba Chiba Japan Village - 23 km
Namegawa Chiba Japan Village - 23 km
Takata Ibaraki Japan Village - 24 km
Edosaki Ibaraki Japan Village 21000 people 24 km
Dainigorisawa Ibaraki Japan Village - 24 km
Owana Ibaraki Japan Village - 25 km
Yaida Ibaraki Japan Village - 26 km
Aruga Ibaraki Japan Village - 26 km
Narita Chiba Japan City 100000 people 27 km
Otake Ibaraki Japan Village - 27 km
Kihara Ibaraki Japan Village - 28 km
Kamiyama Ibaraki Japan Village - 29 km
Kashiwazaki Ibaraki Japan Village - 29 km
Iina Ibaraki Japan Village - 29 km
Owada Ibaraki Japan Village - 29 km
Choshi Chiba Japan City 84000 people 29 km
Yokoshiba Chiba Japan Village - 30 km
Hokota Ibaraki Japan Village 28000 people 30 km
Ambo Ibaraki Japan Village - 30 km
Sakihama Ibaraki Japan Village - 31 km
Hangu Ibaraki Japan Village - 31 km
Ryugasaki Chiba Japan Village 85000 people 31 km
Katsuori Ibaraki Japan Village - 31 km
Torinosu Ibaraki Japan Village - 31 km
Shishikura Ibaraki Japan Village - 32 km
Ishiyatsudo Ibaraki Japan Village - 33 km
Tonouchi Ibaraki Japan Village - 33 km
Noda Ibaraki Japan Village - 33 km
Iioka Ibaraki Japan Village - 34 km
Tokawacho Chiba Japan Village - 35 km
Tamatsukuri Ibaraki Japan Village - 35 km
Inuwaka Chiba Japan Village - 35 km
Ogawa Ibaraki Japan Village - 35 km
Ryugaski Ibaraki Japan Village - 35 km
Kai-Tamari Ibaraki Japan Village - 35 km
Funaki Ibaraki Japan Village - 35 km
Asahi Ibaraki Japan Village - 35 km
Momiji Ibaraki Japan Village - 36 km
Wakaguri Ibaraki Japan Village - 36 km
Kamigama Ibaraki Japan Village - 37 km
Hasunuma Chiba Japan Village - 37 km
Miyata Ibaraki Japan Village - 37 km
Jikkoku Ibaraki Japan Village - 37 km
Ikku Ibaraki Japan Village - 37 km
Naruto Chiba Japan City 22000 people 38 km
Sakura Chiba Japan City 180000 people 38 km
Chiba-nyutaun Chiba Japan Village - 39 km
Nagasu Ibaraki Japan Village - 39 km
Sanga Ibaraki Japan Village - 39 km
Oyagaw Ibaraki Japan Village - 39 km
Torihada Ibaraki Japan Village - 39 km
Fukawa Ibaraki Japan Village - 39 km
Arakawa-Oki Ibaraki Japan Village - 40 km
Ebisawa Ibaraki Japan Village - 40 km
Ishioka Ibaraki Japan Village 52000 people 40 km
Nakanuki Ibaraki Japan Village - 40 km
Katakura Ibaraki Japan Village - 41 km
Ushiku Ibaraki Japan Village 79000 people 41 km
Tsuchida Ibaraki Japan Village - 41 km
Takehara Ibaraki Japan Village - 41 km
Natsumi Ibaraki Japan Village - 41 km
Akiba Ibaraki Japan Village - 41 km
Omori Chiba Japan Village - 43 km
Naka-Shizuku Ibaraki Japan Village - 43 km
Mazunochi Ibaraki Japan Village - 43 km
Togane Chiba Japan Village 55000 people 44 km

see full list

Critical infrastructure

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

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Tokyo Narita International NRT 42 Civ. Paved Yes 13100 25 km
Ryugasaki 2 0 31 km
Ryugasaki South 2 0 32 km
Hyakuri 32 Mil. Paved Yes 8800 33 km
26 0 38 km
Shimoshizu 30 0 48 km
Shimofusa 30 Civ. Paved Yes 7300 53 km
Chiba-ken 19 0 71 km
Tokyo Haneda International HND 7 Civ. Paved Yes 9800 83 km
Kisarazu 3 Mil. Paved Yes 6000 84 km
Suzumenomiya 82 0 90 km
Utsunomiya QUT 102 Civ. Paved Yes 5500 92 km
Honda 12 0 96 km
Chofu 41 Civ. Paved No 3200 99 km
Yokohama YOK unknown 0 99 km

Ports

Name LOCODE Country Distance
Kashima JPKSM Japan 10 km
Choshi JPCHO Japan 30 km
Chiba JPCHB Japan 55 km
Anegasaki JPANE Japan 56 km
Katunan Ko Japan 61 km
Goi JPGOI Japan 61 km
Hitachi JPHTC Japan 64 km
Ogasawara JPOGA Japan 76 km
Tokyo JPTYO Japan 78 km
Kisarazu JPKZU Japan 84 km
Kawasaki JPKWS Japan 86 km
Katsuura Ko Japan 91 km
Yokohama JPYOK Japan 100 km

Dams

Reservoir Dam Name River Year Distance
Kasumigaura Kasumigaura-Kaihatsu Tonegawa 1995 8 km
Jajanboike Kozogawa Kozogawa 1985 58 km
Yamakura Yamakura Yamakuragawa 1964 63 km
Takatakiko Takataki Yorogawa 1990 74 km
Miyukiko Gongendochosetsuchi Nakagawa 1991 81 km
Yanakako Wataraseyusuichi Watarasegawa 1989 87 km
Kameyamako Kameyama Obitsugawa 1980 89 km
Kori Kori Korigawa 1972 92 km

Nuclear plants

Name Country Reactors Distance
TOKAI JAPAN 3 61 km

More information

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