Mag 6.7 earthquake near Tomakomai, Hokkaido, Japan

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A magnitude 6.7 earthquake struck near Tomakomai, Hokkaido, Japan, resulting in significant landslides, nine fatalities, and 31 individuals reported missing. The earthquake occurred shortly after a severe typhoon and extreme heat affected the region, compounding the challenges faced by residents. Recent studies indicate that Hokkaido and the Pacific coast are now at a higher risk for powerful earthquakes. Discussions among participants noted a recent uptick in large earthquakes, contrasting with a previously low average frequency. The ongoing seismic activity raises concerns about future earthquake risks in the area.
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USGS reports M 6.6 - 27km E of Tomakomai, Japan
2018-09-05 18:07:58 UTC 42.671°N, 141.933°E 33.4 km depth
https://earthquake.usgs.gov/earthquakes/eventpage/us2000h8ty#executivePowerful M6.7 earthquake rocks Hokkaido, causing massive landslides; nine dead and 31 reported missing
https://www.japantimes.co.jp/news/2...okkaido-no-tsunami-alert-issued/#.W5E6kjrn-Ul

I found this article while reading about the current earthquake.
Hokkaido and Pacific coast [of Japan] now understood to face higher risk of powerful earthquakes
https://www.japantimes.co.jp/news/2...igher-risk-powerful-earthquakes/#.W5E6OTrn-Uk

Need to track down the study. Not sure if this is the source.
https://phys.org/news/2018-04-future-earthquake-tsunami-southeast-japan.html
 
Earth sciences news on Phys.org
Right after a direct hit by one of the biggest typhoons to ever hit Japan and brutal heat this summer. They aren't catching any breaks this year.
 
I saw the news about Japan earlier, and just now checking stuff.co.nz, I see there was an Mag 7.8 earthquake off Fiji - https://www.stuff.co.nz/world/south-pacific/106895640/magnitude-78-quake-hits-off-fiji

I think @davenn mentioned in another thread that the average number of large earthquakes was quite low at some point (if I recall correctly) - is that being made up by now, with all these quakes happening?
 
StevieTNZ said:
...
I think @davenn mentioned in another thread that the average number of large earthquakes was quite low at some point (if I recall correctly) -
Indeed! Just pulled up the USGS data for 6.5+ earthquakes over the last 10 years, and between April 3rd and August 4th of this year, there was only one earthquake of that magnitude.
That was 123 days.
With quakes occurring on April 2nd and August 5th, that's about a 62 day period average between the 3 quakes.
The average time between such sized quakes was about 7.4 days.

is that being made up by now, with all these quakes happening?
Analyzing earthquake data makes me crazy, so I won't comment.

Here's my obligatory graph, just in case you'd like to scratch YOUR head. :biggrin:

2018.09.06.earthquakes.obligatory.graph.png
 

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