Earthquakes on December 17, 2021
251
EARTHQUAKES on December 17, 2021
24-hour UTC period · USGS data
LARGEST: M5.7 — 231 km E of Levuka, Fiji
575 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
30
M3.0–3.9
17
M2.0–2.9
59
M1.0–1.9
143
Activity Summary
251
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.7
231 km E of Levuka, Fiji
20:02 UTC · 575.1 km deep
5.1
south of Panama
00:12 UTC · 10.0 km deep
4.9
11 km SSW of Donsol, Philippines
14:28 UTC · 10.0 km deep
Felt by 7
4.9
76 km NE of Savannah Bight, Honduras
13:58 UTC · 10.0 km deep
Felt by 3
4.8
Chagos Archipelago region
19:15 UTC · 10.0 km deep
4.7
South Sandwich Islands region
17:16 UTC · 79.0 km deep
4.7
Izu Islands, Japan region
08:40 UTC · 10.0 km deep
4.7
65 km NNW of Turpan, China
06:54 UTC · 10.0 km deep
Felt by 3
Earthquake Map — December 17, 2021
All Earthquakes — December 17, 2021
Showing 30 of 108 (filtered from 251)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2021-12-17 2021-12-17 23:54:38 UTC | 3.1ml | 3 km S of P?hala, Hawaii 19.174°, -155.473° | 34.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.1 earthquake 3 km S of P?hala, Hawaii came in on December 17, 2021 at 23:54 UTC. Coming 5 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 23:39:44 UTC | 4.1mb | 44 km SE of Khorugh, Tajikistan 37.270°, 71.967° | 174.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 44 km SE of Khorugh, Tajikistan on December 17, 2021 at 23:39 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 23:33:07 UTC | 2.2md | 8 km E of P?hala, Hawaii 19.217°, -155.399° | 32.8 km | - | - | - | Auto | USGS → |
On December 17, 2021 at 23:33 UTC, a magnitude 2.2 earthquake struck 8 km E of P?hala, Hawaii. Coming 5 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 23:28:02 UTC | 4.4mb | 9 km ENE of Zakynthos, Greece 37.805°, 20.994° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 9 km ENE of Zakynthos, Greece at 23:28 UTC on December 17, 2021. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 23:14:00 UTC | 2.4md | 2 km ESE of Maria Antonia, Puerto Rico 17.970°, -66.868° | 16.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:14 UTC on December 17, 2021, a magnitude 2.4 tremor occurred 2 km ESE of Maria Antonia, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 21 hours earlier. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 22:42:17 UTC | 2.2ml | 99 km W of Akhiok, Alaska 56.899°, -155.797° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 99 km W of Akhiok, Alaska on December 17, 2021, with origin time 22:42 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 22:20:22 UTC | 2.7ml | 6 km ENE of P?hala, Hawaii 19.217°, -155.417° | 32.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 6 km ENE of P?hala, Hawaii with origin time 22:20 UTC on December 17, 2021. This event falls inside the aftershock decay of a nearby magnitude 3.5 earthquake that occurred about 4 hours earlier. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 22:10:14 UTC | 2.5ml | 35 km WSW of LeChee, Arizona 34.943°, -111.124° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
December 17, 2021 brought a magnitude 2.5 earthquake 35 km WSW of LeChee, Arizona, logged at 22:10 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 21:29:29 UTC | 3.5mlr | 192km S of Estacion Coahuila, B.C., MX 30.477°, -114.737° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.5 earthquake 192km S of Estacion Coahuila, B.C., MX came in on December 17, 2021 at 21:29 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 21:24:18 UTC | 3.2ml | 10 km SSW of Colstrip, Montana 45.796°, -106.654° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 10 km SSW of Colstrip, Montana with origin time 21:24 UTC on December 17, 2021. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 20:46:52 UTC | 4.2mb | south of the Fiji Islands -26.103°, -178.548° | 364.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake south of the Fiji Islands at 20:46 UTC on December 17, 2021. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 20:32:57 UTC | 2.4mb_lg | Kansas 38.663°, -97.505° | 5.0 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected near Kansas on December 17, 2021, with origin time 20:32 UTC. It arrived roughly 6 hours after a larger magnitude 3.3 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. | ||||||||
2021-12-17 2021-12-17 20:17:10 UTC | 3.0ml | 7 km NW of Stanley, Idaho 44.258°, -115.018° | 15.8 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place 7 km NW of Stanley, Idaho on December 17, 2021 at 20:17 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 20:02:30 UTC | 5.7mww | 231 km E of Levuka, Fiji -17.985°, -178.502° | 575.1 km | - | I | green | ✓ Reviewed | USGS → |
On December 17, 2021 at 20:02 UTC, a magnitude 5.7 earthquake struck 231 km E of Levuka, Fiji. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on December 17, 2021. See the M5.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 20:00:54 UTC | 2.0ml | 6 km E of P?hala, Hawaii 19.206°, -155.413° | 33.3 km | - | - | - | Auto | USGS → |
At 20:00 UTC on December 17, 2021, a magnitude 2.0 tremor occurred 6 km E of P?hala, Hawaii. Coming 2 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 19:50:08 UTC | 2.6ml | 12 km S of Point Possession, Alaska 60.810°, -150.725° | 40.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 12 km S of Point Possession, Alaska on December 17, 2021, with origin time 19:50 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 19:48:11 UTC | 4.6mb | Kermadec Islands region -28.760°, -178.120° | 177.8 km | - | - | - | ✓ Reviewed | USGS → |
December 17, 2021 brought a magnitude 4.6 earthquake in the Kermadec Islands region, logged at 19:48 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 19:46:19 UTC | 2.1ml | 125 km S of McCarthy, Alaska 60.315°, -143.205° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
On December 17, 2021 at 19:46 UTC, a magnitude 2.1 earthquake struck 125 km S of McCarthy, Alaska. 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. | ||||||||
2021-12-17 2021-12-17 19:33:21 UTC | 2.8ml | southern Idaho 44.393°, -115.163° | 7.6 km | - | - | - | ✓ Reviewed | USGS → |
On December 17, 2021 at 19:33 UTC, a magnitude 2.8 earthquake struck near southern Idaho. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 19:19:46 UTC | 2.1ml | 8 km NW of Prague, Oklahoma 35.534°, -96.759° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 8 km NW of Prague, Oklahoma came in on December 17, 2021 at 19:19 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 19:15:15 UTC | 4.8mb | Chagos Archipelago region -3.146°, 68.205° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:15 UTC on December 17, 2021, a magnitude 4.8 tremor occurred in the Chagos Archipelago region. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 18:59:35 UTC | 2.2ml | 24km ENE of Thermal, CA 33.752°, -115.917° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 24km ENE of Thermal, CA with origin time 18:59 UTC on December 17, 2021. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 18:49:47 UTC | 3.1ml | 3 km SSE of P?hala, Hawaii 19.172°, -155.469° | 34.1 km | 1 | IV | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 3 km SSE of P?hala, Hawaii on December 17, 2021, with origin time 18:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.5 earthquake that occurred about 1 hours earlier. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 18:27:10 UTC | 3.5ml | Island of Hawaii, Hawaii 19.221°, -155.418° | 32.6 km | 3 | IV | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.5 earthquake near Island of Hawaii, Hawaii at 18:27 UTC on December 17, 2021. In the 72 hours after this event, the USGS recorded 8 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 18:06:18 UTC | 2.3md | 19km NW of Petrolia, CA 40.439°, -124.451° | 18.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 19km NW of Petrolia, CA on December 17, 2021 at 18:06 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 17:43:41 UTC | 4.5mb | South Sandwich Islands region -59.829°, -26.316° | 49.8 km | - | - | - | ✓ Reviewed | USGS → |
On December 17, 2021, worldwide seismic activity registered a magnitude 4.5 earthquake in the South Sandwich Islands region at 17:43 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 17:25:07 UTC | 2.2ml | 9 km ENE of P?hala, Hawaii 19.238°, -155.397° | 31.9 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.2 earthquake 9 km ENE of P?hala, Hawaii at 17:25 UTC on December 17, 2021. It arrived roughly 3 hours after a larger magnitude 3.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 17:21:22 UTC | 2.0ml | 1 km NNW of P?hala, Hawaii 19.214°, -155.485° | 33.7 km | - | - | - | Auto | USGS → |
A magnitude 2.0 earthquake was recorded 1 km NNW of P?hala, Hawaii on December 17, 2021 at 17:21 UTC. Coming 3 hours after a magnitude 3.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 17:16:11 UTC | 4.7mb | South Sandwich Islands region -56.489°, -27.594° | 79.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake in the South Sandwich Islands region at 17:16 UTC on December 17, 2021. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2021-12-17 2021-12-17 17:04:07 UTC | 2.5md | 50 km SE of Naalehu, Hawaii 18.722°, -155.261° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 50 km SE of Naalehu, Hawaii with origin time 17:04 UTC on December 17, 2021. Coming 1 hours after a magnitude 2.6 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.5 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 17, 2021. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.