Light mag. 4.1 earthquake - Western Honshu, Japan on Sunday, 18 October 2020
18 Oct 18:38 UTC: First to report: EMSC after 10 minutes.
I felt this quake
I didn't feel it
Local time at epicenter: 19 Oct 3:28 am (GMT +9)
Magnitude: 4.1
Depth: 40.0 km
Epicenter latitude / longitude: 35.2°N / 136.6°E
(Japan)Nearest volcano: Haku-san (107 km / 66 mi)
Nearby towns and cities:
11 km (7 mi) NW of Tsushima (pop: 67,700)
12 km (7 mi) SW of Sobue (pop: 23,400)
17 km (10 mi) S of Ōgaki (pop: 150,600)
28 km (17 mi) W of Nagoya (pop: 2,191,300)
115 km (71 mi) NE of Osaka (pop: 2,592,400)
285 km (177 mi) W of Tokyo (pop: 8,336,600)
Weather at epicenter at time of quake:
Broken Clouds
10.5°C (51 F), humidity: 87%, wind: 6 m/s (12 kts) from N
Primary data source: EMSC
Broken Clouds
10.5°C (51 F), humidity: 87%, wind: 6 m/s (12 kts) from NEstimated released energy: 8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) [learn more]
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Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!
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.
| Time | Mag. / Depth | Location | Source |
| 19 Oct 3:28 am (GMT +9) (18 Oct 18:28:30 UTC) | M 4.1 / 40 km | Western Honshu, Japan | EMSC |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Leave a comment if you find a particular report interesting or want to add to it.
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Send your own user report!
51.4 km ESE of epicenter [Map] / Light shaking (MMI IV) / rattling, vibrating : I awake just before the shaking began, light shaking continues for a minutes. My parents slept downstairs are not realize this shaking. I was at upstairs. (reported through our app)
80.5 km WSW of epicenter [Map] / Light shaking (MMI IV)
Nagoya-Shi (36.3 km ESE of epicenter) [Map] / Light shaking (MMI IV) / 2-5 s
OKAZAKI, AICHI, JAPAN (57.3 km ESE of epicenter) [Map] / Very weak shaking (MMI II) / 2-5 s (reported through our app)
18.7 km S of epicenter [Map] / Light shaking (MMI IV) / both vertical and horizontal swinging / 5-10 s (reported through our app)
Kasugai / Very weak shaking (MMI II) : I heard it coming for maybe 2 seconds before light shaking for short time
Kasugai / Very weak shaking (MMI II) : I heard it coming for maybe 2 seconds before light shaking for short time
Aichi / not felt / 2-5 s
Aichi Ken / Moderate shaking (MMI V) / single vertical bump / 5-10 s
Kyoto (Japan, 80 km W of epicenter) : Sudden jolt followed by mild rocking. Awoke me and wife. From Kyoto. (reported through EMSC)
Shinshiro (Japan, 89 km E of epicenter) : It woke me up around 3:20 am. The bed shook in a sideways motion for about 5 seconds. (reported through EMSC)
Kyoto (Japan, 80 km W of epicenter) : Shaking for a few seconds, 2 times, in Kyoto (reported through EMSC)
Nagoya (Japan, 28 km E of epicenter) : Woke me up but not intense (reported through EMSC)
Nagoya (Japan, 26 km E of epicenter) : I felt the earthquake by having my bed shaking (reported through EMSC)
Earlier earthquakes in the same area since 1900
Light mag. 4.1 earthquake - Western Honshu, Japan on Sunday, 18 October 2020- Date / time UTC| Mag |Depth|Age|Distance| Details
- 11 Mar 2011 05:46| 9.1 |29km / 18mi|10 years ago|619km / 385mi| 2011 Great Tohoku Earthquake, Japan
- 02 Mar 1933 17:31| 8.4 |15km / 9.3mi|88 years ago|836km / 520mi| 1933 Sanriku (Sanriku-oki) Earthquake, Japan
- 20 Dec 1946 19:19| 8.3 |15km / 9.3mi|74 years ago|241km / 150mi| 1946 Nankai Earthquake, Japan
- 25 Sep 2003 19:50| 8.2 |27km / 17mi|17 years ago|972km / 604mi| Hokkaido, Japan Region
- 16 May 1968 00:49| 8.2 |30km / 19mi|52 years ago|868km / 540mi| Off the East Coast of Honshu, Japan
- 04 Mar 1952 01:22| 8.1 |45km / 28mi|69 years ago|993km / 617mi| Hokkaido, Japan Region
- 07 Dec 1944 04:35| 8.1 |15km / 9.3mi|76 years ago|173km / 107mi| Near the South Coast of Western Honshu, Japan
- 01 Sep 1923 02:58| 8.1 |15km / 9.3mi|97 years ago|246km / 153mi| Near the South Coast of Honshu, Japan
- 20 Mar 1960 17:07| 8.0 |15km / 9.3mi|61 years ago|782km / 486mi| Off the East Coast of Honshu, Japan
- 11 Mar 2011 06:15| 7.9 |43km / 26mi|10 years ago|425km / 264mi| Near the East Coast of Honshu, Japan
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Map of earlier quakes
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