Light mag. 4.9 earthquake - Philippine Sea, 80 km southeast of Tanabe, Wakayama, Japan, on Tuesday, Dec 29, 2020 4:23 am (GMT +9) -

Light mag. 4.9 earthquake - Philippine Sea, 80 km southeast of Tanabe, Wakayama, Japan, on Tuesday, Dec 29, 2020 4:23 am (GMT +9)

Light magnitude 4.9 earthquake at 437 km depth

28 Dec 19:30 UTC: First to report: GFZ after 7 minutes.
28 Dec 19:57: Hypocenter depth recalculated from 444.0 to 437.0 km (from 276 to 272 mi). Epicenter location corrected by 13 km (8 mi) towards NW.
Update Mon, 28 Dec 2020, 19:36
Light magnitude 4.9 earthquake 92 km southeast of Tanabe, Japan
4.9 quake 29 Dec 4:23 am (GMT +9)
4.9 quake 29 Dec 4:23 am (GMT +9)
A magnitude 4.9 earthquake near Tanabe, Tanabe-shi, Wakayama, Japan, was reported only 13 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at a great depth of 444 km beneath the epicenter early morning on Tuesday 29 December 2020 at 4:23 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
A second report was later issued by NIED, which listed it as a magnitude 5.7 earthquake. A third agency, the European-Mediterranean Seismological Centre (EMSC), reported the same quake at magnitude 4.7.
According to preliminary calculations, we do not expect that the quake was felt by many people and did not cause any damage. In Shingū (pop. 31,600, 76 km away), Tanabe (pop. 69,600, 92 km away), and Gobō (pop. 27,200, 116 km away), the quake was probably not felt.
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.

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Earthquake data

Date & time: Dec 28, 2020 19:23:21 UTC -
Local time at epicenter: Tuesday, Dec 29, 2020 4:23 am (GMT +9)
Magnitude: 4.9
Depth: 437.0 km
Epicenter latitude / longitude: 33.12°N / 135.82°E (Philippine Sea, Japan)
Antipode: 33.12°S / 44.18°W
Nearby towns and cities:
70 km (43 mi) SSW of Shingu (pop: 31,600) --> See nearby quakes!
80 km (50 mi) SSE of Tanabe (pop: 69,600) --> See nearby quakes!
137 km (85 mi) SSE of Minato (pop: 375,300) --> See nearby quakes!
138 km (86 mi) SSE of Wakayama (pop: 351,000) --> See nearby quakes!
157 km (97 mi) SE of Tokushima (pop: 267,300) --> See nearby quakes!
174 km (108 mi) S of Nara (pop: 367,400) --> See nearby quakes!
177 km (110 mi) S of Osaka (pop: 2,592,400) --> See nearby quakes!
184 km (115 mi) SSE of Kobe (pop: 1,528,500) --> See nearby quakes!
191 km (118 mi) SSW of Tsu (pop: 163,500) --> See nearby quakes!
456 km (283 mi) SW of Tokyo (pop: 8,336,600) --> See nearby quakes!
168 km (105 mi) SE of Awaji Island (pop: 129,000) --> See nearby quakes!
226 km (141 mi) ESE of Shikoku Island (pop: 4,142,000) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 14.6°C (58 F), humidity: 60%, wind: 1 m/s (3 kts) from NNE
Primary data source: GFZ (German Research Centre for Geosciences)
Estimated released energy: 1.4 x 1012 joules (392 megawatt hours, equivalent to 338 tons of TNT) | about seismic energy
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If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
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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
4.9437 kmNear S. Coast of Western Honshu, JapanGFZ
4.8442 kmNEAR S. COAST OF WESTERN HONSHU, JapanEMSC
5.7454 kmS OFF KII PENINSULA, JapanNIED
4.7439 km66 Km SSW of Shingū, JapanUSGS
5.0433 kmNear S. Coast of Western Honshu, JapanGeoAu

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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