237 km SE of Sapporo-shi, Japan / pop: 1,884,000 / local time: 23:15:56.6 2018-08-24
161 km E of Aomori-shi, Japan / pop: 299,000 / local time: 23:15:56.6 2018-08-24
117 km NE of Misawa, Japan / pop: 42,900 / local time: 23:15:56.6 2018-08-24
For more information on computation, see the article Bossu et al., 2016:
Thumbnail Based Questionnaires for the Rapid and Efficient Collection of Macroseismic Data from Global Earthquakes, Rémy Bossu, Matthieu Landès, Fréderic Roussel, Robert Steed, Gilles Mazet-Roux, Stacey S. Martin, and Susan Hough. Seismological Research Letter. Oct 2016. doi: 10.1785/0220160120;
Furthermore, to avoid the association with wrong events, we filter testimonies in distance and in intensity depending on the magnitude of the seismic event.
References for tectonic plate boundaries:
Coffin, M.F., Gahagan, L.M., and Lawver, L.A., 1998, Present-day Plate Boundary Digital Data Compilation. University of Texas Institute for Geophysics Technical Report No. 174, pp. 5.
Maps view: Seismicity from the previous 7 days in the area .
Regional instrumental seismicity
This seismicity maps have been generated by concatenating the ISC catalogue (since 1964), the EMSC Euro-Med Bulletin catalogue and the EMSC Real Time catalogue. Therefore, they show the seismicity from 1964 until the earthquake occurrence.
Regional deadly earthquakes from 1500 to origin time
Date
Long.
Lat.
Mag.
Death
Location
1611-12-02
144.0
39.0
8.1
5000
OFF EAST COAST OF HONSHU, JAPAN
1640-07-31
140.7
42.1
?
700
HOKKAIDO, JAPAN REGION
1644-10-18
140.0
39.4
6.5
63
EASTERN HONSHU, JAPAN
1694-06-19
140.1
40.2
7.0
394
EASTERN HONSHU, JAPAN
1704-05-27
140.0
40.4
7.0
77
EASTERN HONSHU, JAPAN
1741-08-29
139.4
41.6
?
2000
HOKKAIDO, JAPAN REGION
1766-03-08
140.6
40.7
7.3
1335
EASTERN HONSHU, JAPAN
1810-09-25
139.9
39.9
6.5
60
NEAR WEST COAST OF HONSHU, JAPAN
1823-09-29
141.1
40.0
5.9
73
NEAR EAST COAST OF HONSHU, JAPAN
1835-07-20
142.5
38.5
7.0
many
NEAR EAST COAST OF HONSHU, JAPAN
1856-08-23
142.3
41.0
7.7
38
HOKKAIDO, JAPAN REGION
1896-06-15
144.0
39.5
8.2
22000
OFF EAST COAST OF HONSHU, JAPAN
1896-08-31
140.7
39.5
7.2
209
EASTERN HONSHU, JAPAN
1914-03-15
140.4
39.5
7.1
94
EASTERN HONSHU, JAPAN
1933-03-03
144.5
39.2
8.1
3064
OFF EAST COAST OF HONSHU, JAPAN
1939-05-01
139.7
39.9
6.8
27
NEAR WEST COAST OF HONSHU, JAPAN
1952-03-04
144.1
41.8
8.2
33
HOKKAIDO, JAPAN REGION
1968-05-16
143.6
40.7
7.9
52
OFF EAST COAST OF HONSHU, JAPAN
2008-06-13
140.6
39.1
7.0
13
EASTERN HONSHU, JAPAN
2008-07-23
141.5
39.8
6.8
1
EASTERN HONSHU, JAPAN
Source:
From 1500 to 1999: T. Utsu ; International Handbook of Earthquake and Engineering Seismology; vol. A; 691-718
Testimonies, photos
USGS/NEIC Denver, USA
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