Earthquakes on December 29, 2021
276
EARTHQUAKES on December 29, 2021
24-hour UTC period · USGS data
165 km deep · 127 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
9
M4.0–4.9
55
M3.0–3.9
13
M2.0–2.9
51
M1.0–1.9
148
Activity Summary
276
Total earthquakes
~250
Daily average
Normal
Activity level
9
M5.0+ events
Significant Earthquakes (M4.5+)
7.3
125 km NNE of Lospalos, Timor Leste
18:25 UTC · 165.5 km deep
Felt by 127
5.7
19 km S of Pýrgos, Greece
05:08 UTC · 64.5 km deep
Felt by 44
5.6
258 km NW of Attu Station, Alaska
03:57 UTC · 10.0 km deep
5.0
northern Qinghai, China
21:30 UTC · 10.0 km deep
5.0
135 km NE of Lospalos, Timor Leste
20:32 UTC · 157.7 km deep
5.0
Crete, Greece
16:47 UTC · 64.9 km deep
Felt by 2
5.0
north of Severnaya Zemlya
13:58 UTC · 10.0 km deep
5.0
252 km NW of Attu Station, Alaska
09:28 UTC · 10.8 km deep
Felt by 1
Earthquake Map — December 29, 2021
All Earthquakes — December 29, 2021
Showing 30 of 128 (filtered from 276)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-12-29 2021-12-29 23:31:59 UTC | 2.3ml | 57 km ENE of Ouzinkie, Alaska 58.151°, -151.620° | 26.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 57 km ENE of Ouzinkie, Alaska on December 29, 2021 at 23:31 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 23:20:26 UTC | 4.5mb | northern Mid-Atlantic Ridge 23.863°, -45.971° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021 at 23:20 UTC, a magnitude 4.5 earthquake struck near northern Mid-Atlantic Ridge. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 23:06:38 UTC | 4.3mb | 4 km E of Asímion, Greece 35.043°, 25.138° | 10.3 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 4 km E of Asímion, Greece with origin time 23:06 UTC on December 29, 2021. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 23:00:35 UTC | 4.8mb | 117 km NNE of Lospalos, Timor Leste -7.605°, 127.543° | 161.5 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021 at 23:00 UTC, a magnitude 4.8 earthquake struck 117 km NNE of Lospalos, Timor Leste. This event falls inside the aftershock decay of a nearby magnitude 7.3 earthquake that occurred about 5 hours earlier. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 22:56:57 UTC | 2.4ml | 6 km ENE of P?hala, Hawaii 19.224°, -155.420° | 33.8 km | - | - | - | Auto | USGS → |
December 29, 2021 brought a magnitude 2.4 earthquake 6 km ENE of P?hala, Hawaii, logged at 22:56 UTC. It arrived roughly 10 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 22:53:58 UTC | 2.3md | 6 km SSW of Guánica, Puerto Rico 17.918°, -66.933° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 6 km SSW of Guánica, Puerto Rico at 22:53 UTC on December 29, 2021. It arrived roughly 19 hours after a larger magnitude 2.6 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 22:50:32 UTC | 4.3mb | 254 km NW of Attu Station, Alaska 54.540°, 170.588° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021, worldwide seismic activity registered a magnitude 4.3 earthquake 254 km NW of Attu Station, Alaska at 22:50 UTC. It arrived roughly 19 hours after a larger magnitude 5.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 22:31:25 UTC | 3.3md | 43 km NW of San Antonio, Puerto Rico 18.802°, -67.347° | 8.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.3 earthquake 43 km NW of San Antonio, Puerto Rico with origin time 22:31 UTC on December 29, 2021. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 22:28:33 UTC | 2.0ml | 10 km WSW of Shamrock, Oklahoma 35.863°, -96.684° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021 at 22:28 UTC, a magnitude 2.0 earthquake struck 10 km WSW of Shamrock, Oklahoma. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 21:49:26 UTC | 4.4mb | Vanuatu -13.120°, 167.090° | 194.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected near Vanuatu on December 29, 2021, with origin time 21:49 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 21:44:40 UTC | 2.4ml | 4 km SSW of P?hala, Hawaii 19.168°, -155.496° | 35.8 km | - | - | - | Auto | USGS → |
At 21:44 UTC on December 29, 2021, a magnitude 2.4 tremor occurred 4 km SSW of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 8 hours earlier. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 21:35:58 UTC | 4.3mb | 147 km NE of Lospalos, Timor Leste -7.576°, 127.937° | 168.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:35 UTC on December 29, 2021, a magnitude 4.3 tremor occurred 147 km NE of Lospalos, Timor Leste. This event falls inside the aftershock decay of a nearby magnitude 5.0 earthquake that occurred about 1 hours earlier. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 21:30:22 UTC | 5.0mb | northern Qinghai, China 36.998°, 94.659° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021, worldwide seismic activity registered a magnitude 5.0 earthquake near northern Qinghai, China at 21:30 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:47:22 UTC | 4.3mb | Kermadec Islands region -29.991°, -179.054° | 326.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake in the Kermadec Islands region at 20:47 UTC on December 29, 2021. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:34:19 UTC | 2.4ml | 17 km N of Stanton, Texas 32.286°, -101.798° | 8.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 17 km N of Stanton, Texas on December 29, 2021, with origin time 20:34 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:32:52 UTC | 5.0mb | 135 km NE of Lospalos, Timor Leste -7.555°, 127.758° | 157.7 km | - | - | - | ✓ Reviewed | USGS → |
At 20:32 UTC on December 29, 2021, a magnitude 5.0 tremor occurred 135 km NE of Lospalos, Timor Leste. This event falls inside the aftershock decay of a nearby magnitude 7.3 earthquake that occurred about 2 hours earlier. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:28:44 UTC | 3.5ml | 31 km SE of Malaga, New Mexico 31.992°, -103.872° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.5 earthquake 31 km SE of Malaga, New Mexico came in on December 29, 2021 at 20:28 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:27:06 UTC | 4.3mb | 146 km NE of Lospalos, Timor Leste -7.494°, 127.839° | 165.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 146 km NE of Lospalos, Timor Leste on December 29, 2021, with origin time 20:27 UTC. It arrived roughly 1 hours after a larger magnitude 4.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:25:54 UTC | 4.2mb | north of Severnaya Zemlya 85.292°, 88.943° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected north of Severnaya Zemlya on December 29, 2021, with origin time 20:25 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 20:21:20 UTC | 3.3ml | 9 km SSE of Colstrip, Montana 45.797°, -106.597° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021 at 20:21 UTC, a magnitude 3.3 earthquake struck 9 km SSE of Colstrip, Montana. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:56:24 UTC | 4.1mb | 130 km NE of Lospalos, Timor Leste -7.587°, 127.725° | 172.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:56 UTC on December 29, 2021, a magnitude 4.1 tremor occurred 130 km NE of Lospalos, Timor Leste. It arrived roughly 2 hours after a larger magnitude 7.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:53:04 UTC | 4.6mb | 131 km NE of Lospalos, Timor Leste -7.653°, 127.812° | 176.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 131 km NE of Lospalos, Timor Leste at 19:53 UTC on December 29, 2021. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:51:17 UTC | 4.6mb | 94 km NE of Popondetta, Papua New Guinea -8.246°, 148.913° | 37.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 94 km NE of Popondetta, Papua New Guinea on December 29, 2021, with origin time 19:51 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:21:12 UTC | 4.9mb | 123 km NNE of Lospalos, Timor Leste -7.586°, 127.617° | 163.9 km | 1 | - | - | ✓ Reviewed | USGS → |
December 29, 2021 brought a magnitude 4.9 earthquake 123 km NNE of Lospalos, Timor Leste, logged at 19:21 UTC. It arrived roughly 1 hours after a larger magnitude 7.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:16:07 UTC | 4.4mb | 80 km NE of Yonakuni, Japan 25.002°, 123.534° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 80 km NE of Yonakuni, Japan came in on December 29, 2021 at 19:16 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:08:54 UTC | 4.4mb | 93 km NE of Lospalos, Timor Leste -7.846°, 127.514° | 185.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 93 km NE of Lospalos, Timor Leste on December 29, 2021 at 19:08 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:08:19 UTC | 4.5mb | 18 km WNW of Dh?rchula, India 29.906°, 80.345° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 18 km WNW of Dh?rchula, India on December 29, 2021 at 19:08 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 19:02:56 UTC | 2.1ml | 31 km ENE of Cantwell, Alaska 63.476°, -148.349° | 2.1 km | - | - | - | ✓ Reviewed | USGS → |
On December 29, 2021, worldwide seismic activity registered a magnitude 2.1 earthquake 31 km ENE of Cantwell, Alaska at 19:02 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 18:47:20 UTC | 4.1mb | 126 km NE of Lospalos, Timor Leste -7.585°, 127.655° | 152.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake 126 km NE of Lospalos, Timor Leste at 18:47 UTC on December 29, 2021. This event falls inside the aftershock decay of a nearby magnitude 7.3 earthquake that occurred about 1 hours earlier. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-29 2021-12-29 18:25:51 UTC | 7.3mww | 125 km NNE of Lospalos, Timor Leste -7.548°, 127.577° | 165.5 km | 127 | VI | green | ✓ Reviewed | USGS → |
On December 29, 2021 at 18:25 UTC, a magnitude 7.3 earthquake struck 125 km NNE of Lospalos, Timor Leste. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M7.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
Legend:
Mag: Magnitude (magType = ml, mb, mw, etc.)
Felt: Number of DYFI felt reports
MMI: Modified Mercalli Intensity (I-X+)
Alert: PAGER alert level
Depth: Shallow (<70km), Intermediate, Deep (>300km)
Status: Auto = preliminary, Reviewed = verified by seismologist
Click any row to see additional technical details.
About This Page
This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on December 29, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.