Moderate mag. 5.0 earthquake - North Pacific Ocean, 63 km east of Mito, Ibaraki, Japan, on Saturday, Aug 6, 2022 at 9:23 pm (GMT +9) -

Updated: Tue, Aug 9, 2022 01:31 GMT - Refresh

I felt this quake

Moderate mag. 5.0 earthquake - North Pacific Ocean, 63 km east of Mito, Ibaraki, Japan, on Saturday, Aug 6, 2022 at 9:23 pm (GMT +9)

Moderate magnitude 5.0 earthquake at 20 km depth

6 Aug 12:27 UTC: First to report: VolcanoDiscovery after 3 minutes.
6 Aug 12:30: Now using data updates from NIED
6 Aug 12:41: Now using data updates from USGS
8 Aug 14:54: Hypocenter depth recalculated from 17.5 to 19.5 km (from 10.9 to 12.1 mi). Epicenter location corrected by 0.9 km (0.5 mi) towards SSE.

Update Sat, 6 Aug 2022, 12:36

Magnitude 4.9 earthquake strikes near Kashima-shi, Ibaraki, Japan

4.9 quake 6 Aug 9:23 pm (GMT +9)

Just 13 minutes ago, a 4.9-magnitude earthquake struck near Kashima-shi, Ibaraki, Japan. The tremor was recorded in the evening on Saturday, August 6th, 2022, at 9:23 pm local time, at a shallow depth of 28.3 km below the surface.
The event was filed by Japan's National Research Institute for Earth Science and Disaster Resilience (NIED), the first seismological agency to report it.
A second report was later issued by France's Réseau National de Surveillance Sismique (RéNaSS), which listed it as a magnitude 5.2 earthquake. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 5.0, the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.9, and the German Research Centre for Geosciences (GFZ) at magnitude 5.0.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Kashima-shi (pop. 65,800) located 48 km from the epicenter, Ōarai (pop. 19,300) 49 km away, Katsuta (pop. 156,000) 56 km away, Hitachi-Naka (pop. 156,800) 56 km away, Hasaki (pop. 39,200) 56 km away, Hitachi (pop. 186,300) 61 km away, Katori-shi (pop. 83,200) 63 km away, and Нарита (pop. 100,600) 84 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Chiba (pop. 919,700) located 110 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you're in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

If you were or still are in this area during the quake help others with your feedback and report it here.

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Earthquake data

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Earthquake details

Date & time	Aug 6, 2022 12:23:46 UTC -
Local time at epicenter	Saturday, Aug 6, 2022 at 9:23 pm (GMT +9)
Status	Confirmed
Magnitude	5
Depth	19.5 km
Epicenter latitude / longitude	36.2628°N / 141.1414°E (North Pacific Ocean, Japan)
Antipode	36.263°S / 38.859°W
Shaking intensity	Weak shaking
Felt	3 reports
Primary data source	USGS (United States Geological Survey)
Nearest volcano	Takahara (141 km / 88 mi)
Nearby towns and cities	50 km (31 mi) E of Ōarai (Higashiibaraki-gun) (pop: 19,300) \| Show on map \| Quakes nearby 56 km (35 mi) NE of Kashima-shi (pop: 65,800) \| Show on map \| Quakes nearby 56 km (35 mi) ESE of Katsuta (pop: 156,000) \| Show on map \| Quakes nearby 56 km (35 mi) ESE of Hitachi-Naka (pop: 156,800) \| Show on map \| Quakes nearby 58 km (36 mi) SE of Hitachi (pop: 186,300) \| Show on map \| Quakes nearby 63 km (39 mi) E of Mito (pop: 246,500) \| Show on map \| Quakes nearby 118 km (73 mi) NE of Chiba (pop: 919,700) \| Show on map \| Quakes nearby 145 km (90 mi) ENE of Tokyo (pop: 8,336,600) \| Show on map \| Quakes nearby 228 km (142 mi) S of Tashiro Jima Island (pop: 100) \| Show on map \| Quakes nearby 278 km (172 mi) NE of Shikine-jima Island (pop: 600) \| Show on map \| Quakes nearby 309 km (192 mi) SE of Sado Island (pop: 55,200) \| Show on map \| Quakes nearby
Weather at epicenter at time of quake	Overcast Clouds 23.5°C (74 F), humidity: 79%, wind: 2 m/s (5 kts) from SSE
Estimated seismic energy released	2 x 10¹² joules (554 megawatt hours, equivalent to 477 tons of TNT) \| about seismic energy

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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.	Depth	Location	Source
5.0	20 km	50 Km E of Ōarai, Japan	USGS
4.9	27 km	Near East Coast of Honshu, Japan	GFZ
5.0	20 km	NEAR EAST COAST OF HONSHU, JAPAN	EMSC
5.0	18 km	Near East Coast of Honshu, Japan	RaspberryShake
5.2	10 km	Japan: Near Tokyo	RENASS
4.9	28 km	50 Km E of Ōarai, Japan	NIED
5.0	31 km	Near East Coast of Honshu, Japan	GeoAu

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User reports for this quake (3)

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Tsukuba Japan (97.7 km WSW of epicenter) [Map] / Weak shaking (MMI III)

Tokyo (142.1 km WSW of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s : Lying in bed

Mito / Light shaking (MMI IV) / 20-30 s

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Aftershocks

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Earlier earthquakes in the same area since 1900

Date and time GMT	Mag Depth	Distance	Location	Details
Mar 11, 2011 05:46 11 years ago	9.1 29 km	251km / 156mi	69 km E of Kasakai-jima Island, Japan	More
Sep 1, 1923 02:58 99 years ago	8.1 15 km	191km / 119mi	1.9 km NW of Isehara, Kanagawa, Japan	More
Mar 11, 2011 06:15 11 years ago	7.9 43 km	3km / 2mi	53 km E of Katsuta, Hitachinaka-shi, Ibaraki, Japan	More
Nov 5, 1938 08:43 84 years ago	7.8 35 km	115km / 72mi	258 km NE of Tokyo, Japan	More
Sep 2, 1923 02:46 99 years ago	7.8 15 km	178km / 110mi	Inoko-jima, 6 km NE of Tateyama, Chiba, Japan	More
Jun 12, 1978 08:14 44 years ago	7.7 44 km	228km / 142mi	46 km SE of Kasakai-jima Island, Japan	More
Nov 6, 1938 08:53 84 years ago	7.7 30 km	163km / 101mi	301 km NE of Tokyo, Japan	More
Nov 5, 1938 10:50 84 years ago	7.7 35 km	139km / 86mi	280 km NE of Tokyo, Japan	More
May 23, 1938 07:18 84 years ago	7.7 15 km	42km / 26mi	80 km SE of Iwaki, Fukushima, Japan	More
Nov 10, 1930 13:35 92 years ago	7.7 30 km	29km / 18mi	70 km E of Hitachi, Ibaraki, Japan	More
Jun 16, 1964 04:01 58 years ago	7.6 15 km	289km / 179mi	25 km NW of Murakami, Niigata, Japan	More
Nov 6, 1938 21:38 84 years ago	7.6 25 km	142km / 89mi	286 km NE of Tokyo, Japan	More
Sep 29, 1956 23:20 66 years ago	7.5 66 km	103km / 64mi	Imba-gun, 5 km SE of Sakura, Chiba, Japan	More
Mar 16, 2022 14:36 21 weeks ago	7.3 63 km	165km / 102mi	North Pacific Ocean, 89 km SE of Sendai, Honshu-miyagi-ken, Japan	More
Mar 9, 2011 02:45 11 years ago	7.3 32 km	285km / 177mi	414 km NE of Tokyo, Japan	More
Apr 12, 1962 00:52 60 years ago	7.3 28 km	244km / 152mi	378 km NE of Tokyo, Japan	More
Aug 16, 2005 02:46 17 years ago	7.2 36 km	238km / 148mi	42 km E of Kasakai-jima Island, Japan	More
Jan 16, 1961 07:20 62 years ago	7.2 30 km	58km / 36mi	192 km E of Tokyo, Japan	More
Nov 2, 1936 20:45 86 years ago	7.2 35 km	241km / 150mi	63 km E of Kasakai-jima Island, Japan	More
Jun 18, 1933 21:37 89 years ago	7.2 30 km	235km / 146mi	110 km E of Ishinomaki, Honshu-miyagi-ken, Japan	More
Feb 13, 2021 14:07 1 year 25 weeks ago	7.1 56 km	168km / 105mi	North Pacific Ocean, 88 km SE of Sendai, Honshu-miyagi-ken, Japan	More
Apr 7, 2011 14:32 11 years ago	7.1 42 km	227km / 141mi	Oki-sannō-jima, 30 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
Jul 23, 1982 14:23 40 years ago	7.1 37 km	51km / 32mi	98 km E of Kashima-shi, Ibaraki, Japan	More
Mar 13, 1909 14:29 113 years ago	7.1 15 km	141km / 87mi	137 km E of Hasaki, Chōshi-shi, Chiba, Japan	More
Jul 10, 2011 00:57 11 years ago	7.0 23 km	272km / 169mi	411 km NE of Tokyo, Japan	More
Jul 19, 2008 02:39 14 years ago	7.0 22 km	172km / 107mi	306 km NE of Tokyo, Japan	More
Oct 31, 2003 01:06 19 years ago	7.0 10 km	217km / 135mi	134 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
Jan 16, 1961 12:12 62 years ago	7.0 30 km	61km / 38mi	200 km E of Tokyo, Japan	More
Jan 22, 1959 05:10 64 years ago	7.0 35 km	173km / 107mi	309 km NE of Tokyo, Japan	More
Aug 5, 1927 21:12 95 years ago	7.0 35 km	180km / 112mi	119 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
Aug 14, 1924 18:02 98 years ago	7.0 15 km	26km / 16mi	69 km E of Kashima-shi, Ibaraki, Japan	More
Nov 21, 2016 20:59 6 years ago	6.9 10 km	126km / 78mi	North Pacific Ocean, 35 km E of Namie, Futaba-gun, Fukushima, Japan	More
May 7, 2008 16:45 14 years ago	6.9 27 km	36km / 23mi	79 km NE of Hasaki, Chōshi-shi, Chiba, Japan	More
Nov 13, 1938 22:31 84 years ago	6.9 35 km	164km / 102mi	307 km E of Tokyo, Japan	More
May 1, 2021 01:27 1 year 14 weeks ago	6.8 61 km	219km / 136mi	North Pacific Ocean, 36 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
Feb 6, 1987 13:16 36 years ago	6.8 48 km	94km / 59mi	72 km E of Iwaki, Fukushima, Japan	More
Feb 16, 1996 15:22 26 years ago	6.7 41 km	164km / 102mi	137 km E of Iwaki, Fukushima, Japan	More
Dec 17, 1987 02:08 35 years ago	6.7 63 km	131km / 81mi	Chōsei-gun, 10.3 km SW of Mobara, Chiba, Japan	More
Apr 22, 1987 20:13 35 years ago	6.7 30 km	106km / 66mi	62 km E of Iwaki, Fukushima, Japan	More
Apr 7, 1987 00:40 35 years ago	6.7 29 km	136km / 84mi	88 km NE of Iwaki, Fukushima, Japan	More
Mar 11, 2011 06:18 11 years ago	6.6 16 km	105km / 65mi	235 km E of Tokyo, Japan	More
Jul 16, 2007 01:13 15 years ago	6.6 12 km	278km / 173mi	21 km NW of Kashiwazaki, Niigata, Japan	More
Jan 19, 2005 06:11 18 years ago	6.6 28 km	247km / 153mi	244 km SE of Tokyo, Japan	More
Oct 23, 2004 08:56 18 years ago	6.6 16 km	236km / 147mi	8.4 km S of Ojiya, Niigata, Japan	More
Jun 24, 1986 02:53 36 years ago	6.6 63 km	171km / 106mi	75 km S of Mobara, Chiba, Japan	More
Jan 14, 1978 03:24 45 years ago	6.6 14 km	235km / 146mi	24 km SE of Itō, Prefectura de Shizuoka, Japan	More
Jul 11, 2014 19:22 8 years ago	6.5 10 km	145km / 90mi	North Pacific Ocean, 287 km NE of Tokyo, Japan	More
Mar 12, 2011 01:47 11 years ago	6.5 20 km	200km / 124mi	338 km NE of Tokyo, Japan	More
Mar 11, 2011 08:19 11 years ago	6.5 6.8 km	39km / 24mi	81 km NE of Hasaki, Chōshi-shi, Chiba, Japan	More
Mar 11, 2011 06:20 11 years ago	6.5 49 km	88km / 55mi	217 km E of Tokyo, Japan	More
Mar 9, 2011 21:24 11 years ago	6.5 15 km	270km / 168mi	401 km NE of Tokyo, Japan	More
Mar 14, 2010 08:08 12 years ago	6.5 32 km	170km / 105mi	60 km NE of Namie, Futaba-gun, Fukushima, Japan	More
Dec 2, 2005 13:13 17 years ago	6.5 29 km	221km / 137mi	81 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
May 29, 2004 20:56 18 years ago	6.5 16 km	225km / 140mi	141 km SE of Katsuura, Chiba, Japan	More
Aug 12, 1985 03:49 37 years ago	6.5 52 km	177km / 110mi	83 km SE of Ishinomaki, Honshu-miyagi-ken, Japan	More
May 8, 1974 23:33 48 years ago	6.5 2 km	291km / 181mi	61 km SE of Shizuoka, Prefectura de Shizuoka, Japan	More
Mar 11, 2011 06:07 11 years ago	6.4 32 km	68km / 42mi	213 km NE of Tokyo, Japan	More
Mar 11, 2011 05:55 11 years ago	6.4 35 km	231km / 144mi	376 km NE of Tokyo, Japan	More
Feb 20, 1990 06:53 32 years ago	6.4 14 km	243km / 151mi	33 km SE of Itō, Prefectura de Shizuoka, Japan	More
Feb 6, 1987 12:23 36 years ago	6.4 36 km	99km / 62mi	80 km E of Iwaki, Fukushima, Japan	More
Jan 22, 1981 19:34 42 years ago	6.4 20 km	256km / 159mi	122 km E of Ishinomaki, Honshu-miyagi-ken, Japan	More
Aug 4, 2019 10:23 3 years ago	6.3 49 km	166km / 103mi	North Pacific Ocean, 53 km NE of Namie, Futaba-gun, Fukushima, Japan	More
Jul 30, 2011 18:53 11 years ago	6.3 38 km	77km / 48mi	14 km SE of Iwaki, Fukushima, Japan	More
Jul 24, 2011 18:51 11 years ago	6.3 40 km	165km / 102mi	44 km NE of Namie, Futaba-gun, Fukushima, Japan	More
Mar 11, 2011 15:13 11 years ago	6.3 21 km	67km / 42mi	194 km E of Tokyo, Japan	More
Mar 11, 2011 07:14 11 years ago	6.3 25 km	71km / 44mi	216 km NE of Tokyo, Japan	More
Mar 11, 2011 06:15 11 years ago	6.3 35 km	300km / 187mi	443 km NE of Tokyo, Japan	More
Mar 11, 2011 05:58 11 years ago	6.3 51 km	176km / 109mi	307 km NE of Tokyo, Japan	More
Mar 11, 2011 05:54 11 years ago	6.3 32 km	161km / 100mi	30 km NE of Namie, Futaba-gun, Fukushima, Japan	More
Dec 20, 2008 10:29 14 years ago	6.3 19 km	119km / 74mi	263 km E of Tokyo, Japan	More
Oct 19, 2005 11:44 17 years ago	6.3 32 km	31km / 19mi	27 km E of Hitachi-Naka, Hitachinaka-shi, Ibaraki, Japan	More
Oct 23, 2004 09:34 18 years ago	6.3 10 km	239km / 148mi	2.1 km N of Ojiya, Niigata, Japan	More
Jun 1, 1990 01:22 32 years ago	6.3 67 km	110km / 68mi	Ōamishirasato-shi, 4 km SW of Tōgane, Chiba, Japan	More
Jun 14, 1978 11:34 44 years ago	6.3 40 km	253km / 157mi	93 km E of Ishinomaki, Honshu-miyagi-ken, Japan	More
Dec 7, 2012 08:31 10 years ago	6.2 29 km	298km / 185mi	North Pacific Ocean, 440 km NE of Tokyo, Japan	More
Aug 19, 2011 05:36 11 years ago	6.2 47 km	163km / 101mi	61 km E of Namie, Futaba-gun, Fukushima, Japan	More
May 7, 2008 16:02 14 years ago	6.2 19 km	37km / 23mi	81 km NE of Hasaki, Chōshi-shi, Chiba, Japan	More
Jun 3, 2000 08:54 22 years ago	6.2 62 km	100km / 62mi	Sambu-gun, 8.8 km E of Tōgane, Chiba, Japan	More
Sep 11, 1996 02:37 26 years ago	6.2 55 km	83km / 51mi	33 km SE of Asahi, Chiba, Japan	More
Feb 12, 1986 02:59 37 years ago	6.2 30 km	14km / 8mi	49 km SE of Hitachi, Ibaraki, Japan	More
Apr 9, 1985 05:15 37 years ago	6.2 44 km	244km / 152mi	126 km SE of Tateyama, Chiba, Japan	More
Jul 23, 1982 17:54 40 years ago	6.2 31 km	57km / 35mi	98 km E of Kashima-shi, Ibaraki, Japan	More
Jun 29, 1980 07:20 42 years ago	6.2 15 km	240km / 149mi	20 km SE of Itō, Prefectura de Shizuoka, Japan	More
Apr 18, 2021 00:29 1 year 16 weeks ago	6.1 46 km	236km / 147mi	North Pacific Ocean, 53 km E of Ishinomaki, Honshu-miyagi-ken, Japan	More
Jul 20, 2017 00:11 5 years ago	6.1 42 km	127km / 79mi	North Pacific Ocean, 72 km NE of Iwaki, Fukushima, Japan	More
Jun 5, 2012 19:31 10 years ago	6.1 15 km	147km / 91mi	North Pacific Ocean, 97 km SE of Tōgane, Chiba, Japan	More
May 7, 2008 16:16 14 years ago	6.1 23 km	56km / 35mi	193 km E of Tokyo, Japan	More
Dec 25, 2007 14:04 15 years ago	6.1 48 km	261km / 162mi	39 km E of Kasakai-jima Island, Japan	More
Aug 30, 2005 18:10 17 years ago	6.1 21 km	305km / 190mi	144 km SE of Kamaishi, Iwate, Japan	More
Oct 23, 2004 09:03 18 years ago	6.1 10.5 km	238km / 148mi	2.5 km NE of Ojiya, Niigata, Japan	More
Jul 25, 2003 22:13 19 years ago	6.1 6 km	240km / 149mi	Mahanashi-jima, 11 km N of Schiogama, Shiogama Shi, Honshu-miyagi-ken, Japan	More
Jul 15, 2000 01:30 22 years ago	6.1 10 km	276km / 171mi	Shikine-jima, 74 km S of Itō, Prefectura de Shizuoka, Japan	More
Jul 1, 2000 07:01 22 years ago	6.1 10 km	291km / 181mi	Shikine-jima, Tokyo, 83 km S of Itō, Prefectura de Shizuoka, Japan	More
Nov 20, 1996 02:27 26 years ago	6.1 33 km	213km / 132mi	142 km SE of Mobara, Chiba, Japan	More
Aug 5, 1990 03:36 32 years ago	6.1 27 km	8km / 5mi	49 km E of Hitachi-Naka, Hitachinaka-shi, Ibaraki, Japan	More
Mar 6, 1989 14:39 33 years ago	6.1 42 km	102km / 63mi	Sambu-gun, 7 km E of Tōgane, Chiba, Japan	More
Apr 16, 1987 19:23 35 years ago	6.1 55 km	94km / 58mi	52 km E of Iwaki, Fukushima, Japan	More
Sep 25, 1981 15:01 41 years ago	6.1 25 km	306km / 190mi	141 km SE of Kamaishi, Iwate, Japan	More
Jun 14, 1975 23:36 47 years ago	6.1 19 km	205km / 127mi	267 km E of Mito, Ibaraki, Japan	More
Apr 4, 1971 18:39 51 years ago	6.1 35 km	256km / 159mi	56 km E of Kasakai-jima Island, Japan	More

Show all

Moderate mag. 5.0 earthquake - North Pacific Ocean, 63 km east of Mito, Ibaraki, Japan, on Saturday, Aug 6, 2022 at 9:23 pm (GMT +9) - writeAge(1659788626)