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Mag. 3.1 quake - North Pacific Ocean, 52 km southeast of Tashiro Jima Island, Japan, on Tuesday, Dec 5, 2023, at 10:23 am (GMT +9) -

This quake was likely an aftershock of the 4.7 quake North Pacific Ocean, 49 km southeast of Tashiro Jima Island, Japan, Dec 1, 2023 12:52 pm (GMT +9), which had occurred 4 days earlier.

A light magnitude 3.1 earthquake occurred under the sea near the coast of  Japan in the morning of Tuesday, Dec 5, 2023 at 10.23 am local time (GMT +9). The quake had a shallow depth of 40 km (25 mi) and was not felt (or at least not reported so).

Mag. 3.1 quake - North Pacific Ocean, 52 km southeast of Tashiro Jima Island, Japan, on Tuesday, Dec 5, 2023, at 10:23 am (GMT +9) Mag. 3.1 quake - North Pacific Ocean, 52 km southeast of Tashiro Jima Island, Japan, on Tuesday, Dec 5, 2023, at 10:23 am (GMT +9)

Weak magnitude 3.1 earthquake at 40 km depth

5 Dec 01:32 UTC: First to report: NIED after 8 minutes.

Earthquake details

Date & timeDec 5, 2023 01:23:57 UTC -
Local time at epicenterTuesday, Dec 5, 2023, at 10:23 am (GMT +9)
StatusConfirmed (manually revised)
Magnitude3.1
Depth40.4 km
Epicenter latitude / longitude37.968°N / 141.831°E Japan
Seismic antipode37.968°S / 38.169°W
Shaking intensityVery weak shaking
Felt0 reports
Primary data sourceNIED (National Research Institute for Earth Science and Disaster Resilience)
Nearest volcanoZao (123 km / 76 mi)
Weather at epicenter at time of quakeOvercast Clouds 13.6°C (56 F), humidity: 58%, wind: 7 m/s (14 kts) from SW
Estimated seismic energy released2.8 x 109 joules (783 kilowatt hours, equivalent to 0.674 tons of TNT) | about seismic energy
Interactive map
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Nearby places

The closest larger town near the epicenter is Ishinomaki, a city with more than 120,000 inhabitants in Japan, in 68 km (42 mi) distance to the northwest, but it is unlikely that the quake was felt there.
Distance Place Max. shaking intensity(*) Region Country
68 km (42 mi)
NW of epicenter
Ishinomaki
(pop: 117,200)
I: Not felt
Honshu-miyagi-ken
74 km (46 mi)
NW of epicenter
Yamoto
(pop: 32,000)
I: Not felt
Higashimatshushima Shi, Honshu-miyagi-ken
80 km (50 mi)
NW of epicenter
Schiogama
(pop: 59,500)
I: Not felt
Shiogama Shi, Honshu-miyagi-ken
81 km (50 mi)
NW of epicenter
Matsushima
(pop: 16,400)
I: Not felt
Miyagi Gun, Honshu-miyagi-ken
82 km (51 mi)
W of epicenter
xiang ma
(pop: 34,600)
I: Not felt
Sōma Shi, Fukushima
85 km (53 mi)
NW of epicenter
Rifu
(pop: 35,000)
I: Not felt
Miyagi Gun, Honshu-miyagi-ken
86 km (54 mi)
W of epicenter
Watari
(pop: 36,300)
I: Not felt
Honshu-miyagi-ken
86 km (54 mi)
W of epicenter
Iwanuma
(pop: 42,400)
I: Not felt
Honshu-miyagi-ken
88 km (55 mi)
NW of epicenter
Wakuya
(pop: 18,300)
I: Not felt
Tōda Gun, Honshu-miyagi-ken
91 km (56 mi)
W of epicenter
Sendai
(pop: 1,063,100)
I: Not felt
Honshu-miyagi-ken
91 km (56 mi)
SW of epicenter
Namie
(pop: 21,900)
I: Not felt
Futaba-gun, Fukushima
93 km (58 mi)
W of epicenter
Kakuda
(pop: 33,200)
I: Not felt
Honshu-miyagi-ken
94 km (58 mi)
W of epicenter
Marumori
(pop: 16,800)
I: Not felt
Igu-gun, Honshu-miyagi-ken
94 km (58 mi)
NW of epicenter
Kogota
(pop: 19,800)
I: Not felt
Tōda Gun, Honshu-miyagi-ken
95 km (59 mi)
NW of epicenter
Tomiya
(pop: 42,500)
I: Not felt
Kurokawa-gun, Honshu-miyagi-ken
97 km (60 mi)
W of epicenter
Ōkawara
(pop: 23,300)
I: Not felt
Shibata-gun, Honshu-miyagi-ken
102 km (63 mi)
NW of epicenter
Furukawa
(pop: 76,300)
I: Not felt
Ōsaki Shi, Honshu-miyagi-ken
106 km (66 mi)
W of epicenter
Shiroishi
(pop: 39,500)
I: Not felt
Honshu-miyagi-ken
109 km (68 mi)
W of epicenter
Yanagawamachi-saiwaichō
(pop: 20,800)
I: Not felt
Date-shi, Fukushima
114 km (71 mi)
W of epicenter
Hobaramachi
(pop: 24,500)
I: Not felt
Date-shi, Fukushima
122 km (76 mi)
NW of epicenter
Ichinoseki
(pop: 63,000)
I: Not felt
Iwate
122 km (76 mi)
W of epicenter
Fukushima
(pop: 294,200)
I: Not felt
Fukushima
123 km (77 mi)
N of epicenter
Ofunato
(pop: 35,400)
I: Not felt
Ōfunato-shi, Iwate
125 km (77 mi)
SW of epicenter
Funehikimachi-funehiki
(pop: 23,500)
I: Not felt
Tamura-shi, Fukushima
130 km (81 mi)
W of epicenter
Nihommatsu
(pop: 36,300)
I: Not felt
Nihonmatsu Shi, Fukushima
132 km (82 mi)
W of epicenter
Yamagata
(pop: 254,500)
I: Not felt
Yamagata
132 km (82 mi)
SW of epicenter
Iwaki
(pop: 357,300)
I: Not felt
Fukushima
135 km (84 mi)
W of epicenter
Tendō
(pop: 65,400)
I: Not felt
Yamagata
136 km (84 mi)
NW of epicenter
Higashine
(pop: 45,800)
I: Not felt
Yamagata
138 km (86 mi)
W of epicenter
Kaminoyama
(pop: 35,600)
I: Not felt
Yamagata
142 km (88 mi)
SW of epicenter
Kōriyama
(pop: 340,600)
I: Not felt
Fukushima
143 km (89 mi)
NW of epicenter
Mizusawa
(pop: 61,300)
I: Not felt
Ōshū-shi, Iwate
144 km (89 mi)
W of epicenter
Sagae
(pop: 43,500)
I: Not felt
Yamagata
146 km (90 mi)
N of epicenter
Kamaishi
(pop: 43,100)
I: Not felt
Iwate
149 km (92 mi)
SW of epicenter
Sukagawa
(pop: 68,800)
I: Not felt
Fukushima
151 km (94 mi)
W of epicenter
Yonezawa
(pop: 94,500)
I: Not felt
Yamagata
159 km (99 mi)
NW of epicenter
Kitakami
(pop: 93,900)
I: Not felt
Iwate
167 km (104 mi)
SW of epicenter
Shirakawa
(pop: 59,400)
I: Not felt
Fukushima
169 km (105 mi)
N of epicenter
Hanamaki
(pop: 73,100)
I: Not felt
Iwate
317 km (197 mi)
SW of epicenter
Tokyo
(pop: 8,336,600)
: Not felt
Tokyo
Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

User-reports for this quake

There are no user reports for this quake yet.

If you felt it, be the first to report it!
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Compare Quake Data

Data for the same earthquake as reported by different agencies

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 Time GMT
2023-12-5
Epicenter Agency
3.1 40 km
25 mi
01:23:57 Japan: SE OFF MIYAGI PREF NIED (National Research Institute for Earth Science and Disaster Resilience)

Seismograms

Seismic station: Miyagi Marumori (JMM/JP network) | Distance from quake: 92 km / 57 mi | Show on map | Station Info
Seismic station Miyagi Marumori: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.5-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

Earthquake statistics

Average number of earthquakes

Based on data from the past 10 years and our earthquake archive back to 1900, there are about 13,000 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
  • Mag. 7 or higher: 0.15 quakes per year (or 1 quake every 6.7 years)
  • Mag. 6 or higher: 0.85 quakes per year (or 1 quake every 1.2 years)
  • Mag. 5 or higher: 7.9 quakes per year
  • Mag. 4 or higher: 49 quakes per year
  • Mag. 3 or higher: 382 quakes per year (or 31.8 quakes per month)
  • Mag. 2 or higher: 1,100 quakes per year (or 3.1 quakes per day)
  • Mag. 1 or higher: 1,200 quakes per year (or 3.3 quakes per day)
The area where this quake occurred has a very high level of seismic activity. It has had at least 20 quakes above magnitude 7 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 5 to 10 years.

Number of quakes per year

Previous quakes in the same area of this earthquake

Map of earlier quakes in the area of this quake

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Map to embed or share

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