M 3.9 - NEAR WEST COAST OF HONSHU, JAPAN - 2023-04-01 09:45:30 UTC

I felt this earthquake


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You felt this earthquake. Tell us!

Magnitude	M 3.9
Region	NEAR WEST COAST OF HONSHU, JAPAN
Date time	2023-04-01 09:45:30.0 UTC
Location	38.30 N ; 138.90 E
Depth	10 km
Distances	172 km W of Sendai, Japan / pop: 1,063,000 / local time: 18:45:30.0 2023-04-01 47 km NNW of Niigata, Japan / pop: 797,000 / local time: 18:45:30.0 2023-04-01

Source parameters provided by:

Japan Meteorological Agency Seismic Network -- , Japan (JMA)

Earthquake View	Interactive Maps View	I felt this earthquake	Contribution Map

Seismicity	Regional Moment tensors	Quick MT solutions	PGA/PGV/Population

Int_Dist	Dist_Time	Donut

No enough data for Intensity/Distance curve

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.


Global view	Regional view	Local view

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

1502-01-18	138.2	37.2	6.8	many	NEAR WEST COAST OF HONSHU, JAPAN
1611-09-27	139.8	37.6	6.9	3700	EASTERN HONSHU, JAPAN
1644-10-18	140.0	39.4	6.5	63	EASTERN HONSHU, JAPAN
1659-04-21	139.8	37.1	6.9	50	EASTERN HONSHU, JAPAN
1666-02-01	138.2	37.1	6.8	1500	NEAR WEST COAST OF HONSHU, JAPAN
1714-04-28	137.9	36.7	6.3	86	EASTERN HONSHU, JAPAN
1751-05-21	138.2	37.1	7.2	1541	NEAR WEST COAST OF HONSHU, JAPAN
1802-12-09	138.4	37.8	6.8	37	NEAR WEST COAST OF HONSHU, JAPAN
1804-07-10	140.0	39.1	7.0	313	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
1828-12-18	138.9	37.6	6.9	1681	NEAR WEST COAST OF HONSHU, JAPAN
1833-12-07	139.3	38.9	7.7	100	NEAR WEST COAST OF HONSHU, JAPAN
1847-05-08	138.2	36.7	7.4	8174	EASTERN HONSHU, JAPAN
1894-10-22	139.9	38.9	7.0	726	NEAR WEST 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
1939-05-01	139.7	39.9	6.8	27	NEAR WEST COAST OF HONSHU, JAPAN
1964-06-16	139.2	38.4	7.5	26	NEAR WEST COAST OF HONSHU, JAPAN
2004-10-23	138.8	37.3	6.6	48	NEAR WEST COAST OF HONSHU, JAPAN
2007-07-16	138.5	37.5	6.6	9	NEAR WEST COAST OF HONSHU, JAPAN
2008-06-13	140.6	39.1	7.0	13	EASTERN HONSHU, JAPAN
2011-04-11	140.4	37.0	6.7	7	EASTERN HONSHU, JAPAN

Source:

From 1500 to 1999: T. Utsu ; International Handbook of Earthquake and Engineering Seismology; vol. A; 691-718
From 2000 to 2007: USGS Quality composite earthquake catalog
From 2008: National Centers for Environmental Information (NOAA)

Map created with the testimonies provided by the eyewitnesses (click to enlarge).

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