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 -
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 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)
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

I felt this quake
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Earthquake details

Date & timeAug 6, 2022 12:23:46 UTC -
Local time at epicenterSaturday, Aug 6, 2022 at 9:23 pm (GMT +9)
StatusConfirmed
Magnitude5
Depth19.5 km
Epicenter latitude / longitude36.2628°N / 141.1414°E (North Pacific Ocean, Japan)
Antipode36.263°S / 38.859°W
Shaking intensityWeak shaking
Felt3 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoTakahara (141 km / 88 mi)
Nearby towns and cities50 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 quakeOvercast Clouds 23.5°C (74 F), humidity: 79%, wind: 2 m/s (5 kts) from SSE
Estimated seismic energy released2 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.DepthLocationSource
5.020 km50 Km E of Ōarai, JapanUSGS
4.927 kmNear East Coast of Honshu, JapanGFZ
5.020 kmNEAR EAST COAST OF HONSHU, JAPANEMSC
5.018 kmNear East Coast of Honshu, JapanRaspberryShake
5.210 kmJapan: Near TokyoRENASS
4.928 km50 Km E of Ōarai, JapanNIED
5.031 kmNear East Coast of Honshu, JapanGeoAu

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Translate
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

Please check again later while we are collecting more data.

Earlier earthquakes in the same area since 1900

Date and time GMTMag
Depth
DistanceLocationDetails
Mar 11, 2011 05:46
11 years ago
9.1

29 km
251km / 156mi69 km E of Kasakai-jima Island, JapanMore
Sep 1, 1923 02:58
99 years ago
8.1

15 km
191km / 119mi1.9 km NW of Isehara, Kanagawa, JapanMore
Mar 11, 2011 06:15
11 years ago
7.9

43 km
3km / 2mi53 km E of Katsuta, Hitachinaka-shi, Ibaraki, JapanMore
Nov 5, 1938 08:43
84 years ago
7.8

35 km
115km / 72mi258 km NE of Tokyo, JapanMore
Sep 2, 1923 02:46
99 years ago
7.8

15 km
178km / 110miInoko-jima, 6 km NE of Tateyama, Chiba, JapanMore
Jun 12, 1978 08:14
44 years ago
7.7

44 km
228km / 142mi46 km SE of Kasakai-jima Island, JapanMore
Nov 6, 1938 08:53
84 years ago
7.7

30 km
163km / 101mi301 km NE of Tokyo, JapanMore
Nov 5, 1938 10:50
84 years ago
7.7

35 km
139km / 86mi280 km NE of Tokyo, JapanMore
May 23, 1938 07:18
84 years ago
7.7

15 km
42km / 26mi80 km SE of Iwaki, Fukushima, JapanMore
Nov 10, 1930 13:35
92 years ago
7.7

30 km
29km / 18mi70 km E of Hitachi, Ibaraki, JapanMore
Jun 16, 1964 04:01
58 years ago
7.6

15 km
289km / 179mi25 km NW of Murakami, Niigata, JapanMore
Nov 6, 1938 21:38
84 years ago
7.6

25 km
142km / 89mi286 km NE of Tokyo, JapanMore
Sep 29, 1956 23:20
66 years ago
7.5

66 km
103km / 64miImba-gun, 5 km SE of Sakura, Chiba, JapanMore
Mar 16, 2022 14:36
21 weeks ago
7.3

63 km
165km / 102miNorth Pacific Ocean, 89 km SE of Sendai, Honshu-miyagi-ken, JapanMore
Mar 9, 2011 02:45
11 years ago
7.3

32 km
285km / 177mi414 km NE of Tokyo, JapanMore
Apr 12, 1962 00:52
60 years ago
7.3

28 km
244km / 152mi378 km NE of Tokyo, JapanMore
Aug 16, 2005 02:46
17 years ago
7.2

36 km
238km / 148mi42 km E of Kasakai-jima Island, JapanMore
Jan 16, 1961 07:20
62 years ago
7.2

30 km
58km / 36mi192 km E of Tokyo, JapanMore
Nov 2, 1936 20:45
86 years ago
7.2

35 km
241km / 150mi63 km E of Kasakai-jima Island, JapanMore
Jun 18, 1933 21:37
89 years ago
7.2

30 km
235km / 146mi110 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Feb 13, 2021 14:07
1 year 25 weeks ago
7.1

56 km
168km / 105miNorth Pacific Ocean, 88 km SE of Sendai, Honshu-miyagi-ken, JapanMore
Apr 7, 2011 14:32
11 years ago
7.1

42 km
227km / 141miOki-sannō-jima, 30 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jul 23, 1982 14:23
40 years ago
7.1

37 km
51km / 32mi98 km E of Kashima-shi, Ibaraki, JapanMore
Mar 13, 1909 14:29
113 years ago
7.1

15 km
141km / 87mi137 km E of Hasaki, Chōshi-shi, Chiba, JapanMore
Jul 10, 2011 00:57
11 years ago
7.0

23 km
272km / 169mi411 km NE of Tokyo, JapanMore
Jul 19, 2008 02:39
14 years ago
7.0

22 km
172km / 107mi306 km NE of Tokyo, JapanMore
Oct 31, 2003 01:06
19 years ago
7.0

10 km
217km / 135mi134 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jan 16, 1961 12:12
62 years ago
7.0

30 km
61km / 38mi200 km E of Tokyo, JapanMore
Jan 22, 1959 05:10
64 years ago
7.0

35 km
173km / 107mi309 km NE of Tokyo, JapanMore
Aug 5, 1927 21:12
95 years ago
7.0

35 km
180km / 112mi119 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Aug 14, 1924 18:02
98 years ago
7.0

15 km
26km / 16mi69 km E of Kashima-shi, Ibaraki, JapanMore
Nov 21, 2016 20:59
6 years ago
6.9

10 km
126km / 78miNorth Pacific Ocean, 35 km E of Namie, Futaba-gun, Fukushima, JapanMore
May 7, 2008 16:45
14 years ago
6.9

27 km
36km / 23mi79 km NE of Hasaki, Chōshi-shi, Chiba, JapanMore
Nov 13, 1938 22:31
84 years ago
6.9

35 km
164km / 102mi307 km E of Tokyo, JapanMore
May 1, 2021 01:27
1 year 14 weeks ago
6.8

61 km
219km / 136miNorth Pacific Ocean, 36 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
Feb 6, 1987 13:16
36 years ago
6.8

48 km
94km / 59mi72 km E of Iwaki, Fukushima, JapanMore
Feb 16, 1996 15:22
26 years ago
6.7

41 km
164km / 102mi137 km E of Iwaki, Fukushima, JapanMore
Dec 17, 1987 02:08
35 years ago
6.7

63 km
131km / 81miChōsei-gun, 10.3 km SW of Mobara, Chiba, JapanMore
Apr 22, 1987 20:13
35 years ago
6.7

30 km
106km / 66mi62 km E of Iwaki, Fukushima, JapanMore
Apr 7, 1987 00:40
35 years ago
6.7

29 km
136km / 84mi88 km NE of Iwaki, Fukushima, JapanMore
Mar 11, 2011 06:18
11 years ago
6.6

16 km
105km / 65mi235 km E of Tokyo, JapanMore
Jul 16, 2007 01:13
15 years ago
6.6

12 km
278km / 173mi21 km NW of Kashiwazaki, Niigata, JapanMore
Jan 19, 2005 06:11
18 years ago
6.6

28 km
247km / 153mi244 km SE of Tokyo, JapanMore
Oct 23, 2004 08:56
18 years ago
6.6

16 km
236km / 147mi8.4 km S of Ojiya, Niigata, JapanMore
Jun 24, 1986 02:53
36 years ago
6.6

63 km
171km / 106mi75 km S of Mobara, Chiba, JapanMore
Jan 14, 1978 03:24
45 years ago
6.6

14 km
235km / 146mi24 km SE of Itō, Prefectura de Shizuoka, JapanMore
Jul 11, 2014 19:22
8 years ago
6.5

10 km
145km / 90miNorth Pacific Ocean, 287 km NE of Tokyo, JapanMore
Mar 12, 2011 01:47
11 years ago
6.5

20 km
200km / 124mi338 km NE of Tokyo, JapanMore
Mar 11, 2011 08:19
11 years ago
6.5

6.8 km
39km / 24mi81 km NE of Hasaki, Chōshi-shi, Chiba, JapanMore
Mar 11, 2011 06:20
11 years ago
6.5

49 km
88km / 55mi217 km E of Tokyo, JapanMore
Mar 9, 2011 21:24
11 years ago
6.5

15 km
270km / 168mi401 km NE of Tokyo, JapanMore
Mar 14, 2010 08:08
12 years ago
6.5

32 km
170km / 105mi60 km NE of Namie, Futaba-gun, Fukushima, JapanMore
Dec 2, 2005 13:13
17 years ago
6.5

29 km
221km / 137mi81 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
May 29, 2004 20:56
18 years ago
6.5

16 km
225km / 140mi141 km SE of Katsuura, Chiba, JapanMore
Aug 12, 1985 03:49
37 years ago
6.5

52 km
177km / 110mi83 km SE of Ishinomaki, Honshu-miyagi-ken, JapanMore
May 8, 1974 23:33
48 years ago
6.5

2 km
291km / 181mi61 km SE of Shizuoka, Prefectura de Shizuoka, JapanMore
Mar 11, 2011 06:07
11 years ago
6.4

32 km
68km / 42mi213 km NE of Tokyo, JapanMore
Mar 11, 2011 05:55
11 years ago
6.4

35 km
231km / 144mi376 km NE of Tokyo, JapanMore
Feb 20, 1990 06:53
32 years ago
6.4

14 km
243km / 151mi33 km SE of Itō, Prefectura de Shizuoka, JapanMore
Feb 6, 1987 12:23
36 years ago
6.4

36 km
99km / 62mi80 km E of Iwaki, Fukushima, JapanMore
Jan 22, 1981 19:34
42 years ago
6.4

20 km
256km / 159mi122 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Aug 4, 2019 10:23
3 years ago
6.3

49 km
166km / 103miNorth Pacific Ocean, 53 km NE of Namie, Futaba-gun, Fukushima, JapanMore
Jul 30, 2011 18:53
11 years ago
6.3

38 km
77km / 48mi14 km SE of Iwaki, Fukushima, JapanMore
Jul 24, 2011 18:51
11 years ago
6.3

40 km
165km / 102mi44 km NE of Namie, Futaba-gun, Fukushima, JapanMore
Mar 11, 2011 15:13
11 years ago
6.3

21 km
67km / 42mi194 km E of Tokyo, JapanMore
Mar 11, 2011 07:14
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6.3

25 km
71km / 44mi216 km NE of Tokyo, JapanMore
Mar 11, 2011 06:15
11 years ago
6.3

35 km
300km / 187mi443 km NE of Tokyo, JapanMore
Mar 11, 2011 05:58
11 years ago
6.3

51 km
176km / 109mi307 km NE of Tokyo, JapanMore
Mar 11, 2011 05:54
11 years ago
6.3

32 km
161km / 100mi30 km NE of Namie, Futaba-gun, Fukushima, JapanMore
Dec 20, 2008 10:29
14 years ago
6.3

19 km
119km / 74mi263 km E of Tokyo, JapanMore
Oct 19, 2005 11:44
17 years ago
6.3

32 km
31km / 19mi27 km E of Hitachi-Naka, Hitachinaka-shi, Ibaraki, JapanMore
Oct 23, 2004 09:34
18 years ago
6.3

10 km
239km / 148mi2.1 km N of Ojiya, Niigata, JapanMore
Jun 1, 1990 01:22
32 years ago
6.3

67 km
110km / 68miŌamishirasato-shi, 4 km SW of Tōgane, Chiba, JapanMore
Jun 14, 1978 11:34
44 years ago
6.3

40 km
253km / 157mi93 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Dec 7, 2012 08:31
10 years ago
6.2

29 km
298km / 185miNorth Pacific Ocean, 440 km NE of Tokyo, JapanMore
Aug 19, 2011 05:36
11 years ago
6.2

47 km
163km / 101mi61 km E of Namie, Futaba-gun, Fukushima, JapanMore
May 7, 2008 16:02
14 years ago
6.2

19 km
37km / 23mi81 km NE of Hasaki, Chōshi-shi, Chiba, JapanMore
Jun 3, 2000 08:54
22 years ago
6.2

62 km
100km / 62miSambu-gun, 8.8 km E of Tōgane, Chiba, JapanMore
Sep 11, 1996 02:37
26 years ago
6.2

55 km
83km / 51mi33 km SE of Asahi, Chiba, JapanMore
Feb 12, 1986 02:59
37 years ago
6.2

30 km
14km / 8mi49 km SE of Hitachi, Ibaraki, JapanMore
Apr 9, 1985 05:15
37 years ago
6.2

44 km
244km / 152mi126 km SE of Tateyama, Chiba, JapanMore
Jul 23, 1982 17:54
40 years ago
6.2

31 km
57km / 35mi98 km E of Kashima-shi, Ibaraki, JapanMore
Jun 29, 1980 07:20
42 years ago
6.2

15 km
240km / 149mi20 km SE of Itō, Prefectura de Shizuoka, JapanMore
Apr 18, 2021 00:29
1 year 16 weeks ago
6.1

46 km
236km / 147miNorth Pacific Ocean, 53 km E of Ishinomaki, Honshu-miyagi-ken, JapanMore
Jul 20, 2017 00:11
5 years ago
6.1

42 km
127km / 79miNorth Pacific Ocean, 72 km NE of Iwaki, Fukushima, JapanMore
Jun 5, 2012 19:31
10 years ago
6.1

15 km
147km / 91miNorth Pacific Ocean, 97 km SE of Tōgane, Chiba, JapanMore
May 7, 2008 16:16
14 years ago
6.1

23 km
56km / 35mi193 km E of Tokyo, JapanMore
Dec 25, 2007 14:04
15 years ago
6.1

48 km
261km / 162mi39 km E of Kasakai-jima Island, JapanMore
Aug 30, 2005 18:10
17 years ago
6.1

21 km
305km / 190mi144 km SE of Kamaishi, Iwate, JapanMore
Oct 23, 2004 09:03
18 years ago
6.1

10.5 km
238km / 148mi2.5 km NE of Ojiya, Niigata, JapanMore
Jul 25, 2003 22:13
19 years ago
6.1

6 km
240km / 149miMahanashi-jima, 11 km N of Schiogama, Shiogama Shi, Honshu-miyagi-ken, JapanMore
Jul 15, 2000 01:30
22 years ago
6.1

10 km
276km / 171miShikine-jima, 74 km S of Itō, Prefectura de Shizuoka, JapanMore
Jul 1, 2000 07:01
22 years ago
6.1

10 km
291km / 181miShikine-jima, Tokyo, 83 km S of Itō, Prefectura de Shizuoka, JapanMore
Nov 20, 1996 02:27
26 years ago
6.1

33 km
213km / 132mi142 km SE of Mobara, Chiba, JapanMore
Aug 5, 1990 03:36
32 years ago
6.1

27 km
8km / 5mi49 km E of Hitachi-Naka, Hitachinaka-shi, Ibaraki, JapanMore
Mar 6, 1989 14:39
33 years ago
6.1

42 km
102km / 63miSambu-gun, 7 km E of Tōgane, Chiba, JapanMore
Apr 16, 1987 19:23
35 years ago
6.1

55 km
94km / 58mi52 km E of Iwaki, Fukushima, JapanMore
Sep 25, 1981 15:01
41 years ago
6.1

25 km
306km / 190mi141 km SE of Kamaishi, Iwate, JapanMore
Jun 14, 1975 23:36
47 years ago
6.1

19 km
205km / 127mi267 km E of Mito, Ibaraki, JapanMore
Apr 4, 1971 18:39
51 years ago
6.1

35 km
256km / 159mi56 km E of Kasakai-jima Island, JapanMore
Show all

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