Strong mag. 6.6 earthquake - Hokkaido, Japan Region on Wednesday, 5 September 2018 - information

Updated: Sep 24, 2021 04:55 GMT

Very strong mag. 6.6 earthquake - Yūbari-gun, 26 km east of Chitose, Hokkaido, Japan, on Wednesday, September 5, 2018 at 18:08 (GMT)

Very strong mag. 6.6 earthquake - Yūbari-gun, 26 km east of Chitose, Hokkaido, Japan, on Wednesday, September 5, 2018 at 18:08 (GMT)

Very strong magnitude 6.6 earthquake at 27 km depth

5 Sep 18:15 UTC: First to report: GFZ after 7 minutes.
Sep 5 18:48: Magnitude recalculated from 6.8 to 6.6.
Hypocenter depth recalculated from 10.0 to 27.0 km.
Date & time: Sep 5, 2018 18:08:04 UTC
Magnitude: 6.6
Depth: 27.0 km
Epicenter latitude / longitude: 42.9°N / 141.95°E (Yūbari-gun, Hokkaido, Japan)
Antipode: 42.9°S / 38.05°W
Nearest volcano: Shikotsu (30 km / 19 mi)
Nearby towns and cities:
26 km (16 mi) ENE of Chitose (pop: 92,900) --> See nearby quakes!
32 km (20 mi) ESE of Hiroshima (pop: 62,400) --> See nearby quakes!
37 km (23 mi) SSE of Iwamizawa (pop: 85,100) --> See nearby quakes!
40 km (25 mi) SE of Ebetsu (pop: 134,000) --> See nearby quakes!
41 km (25 mi) NE of Tomakomai (pop: 174,800) --> See nearby quakes!
48 km (30 mi) S of Bibai (pop: 29,000) --> See nearby quakes!
50 km (31 mi) SE of Tōbetsu (Ishikari District) (pop: 21,800) --> See nearby quakes!
52 km (32 mi) ESE of Sapporo (pop: 1,883,000) --> See nearby quakes!
61 km (38 mi) SE of Ishikari (pop: 57,300) --> See nearby quakes!
825 km (513 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 5 x 1014 joules (139 gigawatt hours, equivalent to 1.2 x 105 tons of TNT or 7.5 atomic bombs!) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
Mag.DepthLocationSource
6.627 kmHokkaido, Japan RegionGFZ
6.710 km HOKKAIDO, JAPAN REGIONEMSC
6.633 km- 27km E of Tomakomai, JapanUSGS
shake map
(shakemap: USGS)

User reports for this quake (45)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Teine-dist, Sapporo City, Hokkaido / Very strong shaking (MMI VII) : first comes rocking for 10sec strongly, consequently comes very short waved (high frequency) rolling  
Sapporo, Hokkaido (52.5 km WNW of epicenter) [Map] / Strong shaking (MMI VI) (reported through our app)
China / Violent shaking (MMI IX) : Care the care  
Narita, Chiba (803.6 km S of epicenter) [Map] / Very weak shaking (MMI II) (reported through our app)
Sapporo (51.2 km WNW of epicenter) [Map] / Strong shaking (MMI VI) : I woke up from the shaking and it just would not stop. Felt like forever. Somehow even scarier than the one in Osaka (been there too) since I feel the aftershocks are stronger here.  
Muroran / Moderate shaking (MMI V) : Rigth now were a other one more very scared today 6.15 am  
07012, Palma de Mallorca / not felt : Watch InfoCanal EdTv was sent an warning for you today IS allready one week its covering The quakes prevision for Japan, 7 hours ago was published this quake alert!  
Sapporo, kita 16 Nishi 6 chome (53.5 km WNW of epicenter) [Map] / Very strong shaking (MMI VII) : It’s my first experience! And I found it it horrifying! Besides, it happened at dawn. There was nothing I could do but to hope that subsided. I probably need to know more about earthquakes! They’re indeed real!  
Muroran / Strong shaking (MMI VI) : Strong and long shaking wee stay in totally black out  
Muroran / Strong shaking (MMI VI) : Strong and long shaking  
Nopporo, Ebetsu-city / Strong shaking (MMI VI)
Sapporo - Shiroishi-ku (49.1 km WNW of epicenter) [Map] / Severe shaking (MMI VIII)
Sapporo, Minamiku, Sumikawa / Strong shaking (MMI VI) : I live in the 10th floor and there have been many afterschocks.  
near Asahikawa, Hokkaido (112.3 km NNE of epicenter) [Map] / Light shaking (MMI IV) (reported through our app)
Hakodate / Light shaking (MMI IV)
Sapporo-shi, Hokkaido (50.2 km WNW of epicenter) [Map] / Moderate shaking (MMI V) : Woke up, felt strong shaking, but was able to hold the moving wall, the cat was afraid and in the closet meowing.  
sapporo, kita-ku / Strong shaking (MMI VI)
Otaru / Very strong shaking (MMI VII) : That was my first experience with earthquake and it was hell scary  
Niseko / Light shaking (MMI IV)
kutchan / Moderate shaking (MMI V)
Tomamu / Very strong shaking (MMI VII)
Hakodate / Moderate shaking (MMI V)
Niseko (91.4 km W of epicenter) [Map] / Moderate shaking (MMI V)
Noboribetsu / Moderate shaking (MMI V) : Building slightly shaking. Power is out. Nothing fell over. 3 mini aftershocks thus far (3:44am now)  
Sapporo Hokkaido / Strong shaking (MMI VI)
otaru / Strong shaking (MMI VI) : Felt like I was back in California.  
Chitose station / Light shaking (MMI IV) : We just felt few time of shaking since 3:08 am (6/08/2018) and seeing the objects are swinging few times! Hope us and others ppl are fine as well  
Sapporo, hard earthquake less than one minute / Strong shaking (MMI VI)
Misawa, Japan / Moderate shaking (MMI V) : We were awoken in doors on the 3rd floor of a hotel in Misawa, Japan. The room was shaking pretty bad and we went to the door jam for about a minute. Then we felt more shaking and so got dressed and went downstairs. Then we fel  
Kansas / not felt : Hey JAPAN watch DUTCHSINSE YTUB OR TWITCH FOR EARTHQUAKE UPDATES FORCAST THIS ISNT OVER HAVE A PLAN STAY SAFE  
hokkaido / Strong shaking (MMI VI)
Sapporo / Moderate shaking (MMI V)
Hakodate / Moderate shaking (MMI V)
Kutchan / Moderate shaking (MMI V)
Niseko / Moderate shaking (MMI V)
Sapporo, Hokkaido (51.5 km WNW of epicenter) [Map] / Moderate shaking (MMI V)
Sapporo / Moderate shaking (MMI V)
Misawa-shi, Aomori / Moderate shaking (MMI V)
(Japan, 236 km SW of epicenter) : Seemed like a M ~3 here in Aomori CIty. I was woken up by it and the two aftershocks that followed over two hours later. I was pissed because I didn't get enough sleep (I'm a light sleeper and the previous night was noisy from the outskirts (reported through EMSC)  
Misawa (Japan, 232 km S of epicenter) : Shook our tower for about 20 sec (reported through EMSC)  
Chitose-shi (Japan, 36 km W of epicenter) : No trouble but we felt it alright! No electricity right now though but everybody in the hotel is alright. (reported through EMSC)  
Saitama-shi (Japan, 779 km S of epicenter) : The place I live is far away so I didn't feel shaking, but my son lived in a place very close to the epicenter and is waiting for the next information. (reported through EMSC)  
Furano (Japan, 75 km N of epicenter) : At 3.08am (reported through EMSC)  
Furano (Japan, 75 km N of epicenter) : Strong shaking for 2 mins (reported through EMSC)  
Sapporo (Japan, 47 km NW of epicenter) : In hotel room on 7th floor. Lasted about 20 seconds. (reported through EMSC)  
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Aftershocks

More info

Recorded aftershocks, latest first (41 quakes)

  • 21 Feb 2019 12:22 UTC
    | M 5.6 |
    53 km (32.9 mi) depth
    |
    14 km (9 mi) distance
    | GFZ | Details
  • 10 Feb 2019 15:59 UTC
    | M 4.4 |
    123 km (76.4 mi) depth
    |
    58 km (36 mi) distance
    | EMSC | Details
  • 25 Jan 2019 07:47 UTC
    | M 4.3 |
    123 km (76.4 mi) depth
    |
    48 km (30 mi) distance
    | EMSC | Details
  • 29 Dec 2018 19:08 UTC
    | M 5.6 |
    50 km (31.1 mi) depth
    |
    112 km (69 mi) distance
    | GFZ | Details
  • 14 Nov 2018 10:07 UTC
    | M 5.0 |
    30 km (18.6 mi) depth
    |
    15 km (9 mi) distance
    | GFZ | Details
  • 08 Nov 2018 02:15 UTC
    | M 4.4 |
    104.2 km (64.7 mi) depth
    |
    87 km (54 mi) distance
    | USGS | Details
  • 30 Oct 2018 17:59 UTC
    | M 4.5 |
    124.9 km (77.6 mi) depth
    |
    101 km (63 mi) distance
    | USGS | Details
  • 19 Oct 2018 17:30 UTC
    | M 4.6 |
    43.2 km (26.8 mi) depth
    |
    100 km (62 mi) distance
    | USGS | Details
  • 12 Oct 2018 00:14 UTC
    | M 4.9 |
    60 km (37.3 mi) depth
    |
    51 km (32 mi) distance
    | GFZ | Details
  • 08 Oct 2018 17:45 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    28 km (17 mi) distance
    | USGS | Details
  • 08 Oct 2018 12:53 UTC
    | M 4.6 |
    29.2 km (18.1 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 06 Oct 2018 04:14 UTC
    | M 4.6 |
    45 km (28 mi) depth
    |
    21 km (13 mi) distance
    | USGS | Details
  • 04 Oct 2018 23:58 UTC
    | M 5.2 |
    10 km (6.2 mi) depth
    |
    39 km (24 mi) distance
    | GFZ | Details
  • 01 Oct 2018 02:22 UTC
    | M 5.1 |
    62 km (38.5 mi) depth
    |
    9 km (5 mi) distance
    | GFZ | Details
  • 30 Sep 2018 19:40 UTC
    | M 4.3 |
    123 km (76.4 mi) depth
    |
    50 km (31 mi) distance
    | EMSC | Details
  • 30 Sep 2018 08:54 UTC
    | M 5.0 |
    52 km (32.3 mi) depth
    |
    32 km (20 mi) distance
    | GFZ | Details
  • Show all

Earlier earthquakes in the same area

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