Earthquakes on February 18, 2023
301
EARTHQUAKES on February 18, 2023
24-hour UTC period · USGS data
LARGEST: M5.7 — South Sandwich Islands region
13 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
35
M3.0–3.9
13
M2.0–2.9
72
M1.0–1.9
176
Activity Summary
301
Total earthquakes
~250
Daily average
Elevated
Activity level
5
M5.0+ events
Significant Earthquakes (M4.5+)
5.7
South Sandwich Islands region
21:27 UTC · 12.9 km deep
5.4
Tonga region
03:16 UTC · 10.0 km deep
5.3
83 km NNW of Sola, Vanuatu
09:02 UTC · 202.8 km deep
5.2
Fiji region
23:03 UTC · 545.1 km deep
5.0
10 km ENE of Göksun, Turkey
19:31 UTC · 12.2 km deep
Felt by 12
4.9
156 km ENE of Masohi, Indonesia
04:47 UTC · 20.6 km deep
4.9
85 km SW of Isangel, Vanuatu
02:07 UTC · 10.0 km deep
4.8
15 km E of Río Segundo, Costa Rica
08:24 UTC · 10.0 km deep
Felt by 46
Earthquake Map — February 18, 2023
All Earthquakes — February 18, 2023
Showing 30 of 125 (filtered from 301)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-02-18 2023-02-18 23:59:34 UTC | 3.0ml | 100 km SW of Adak, Alaska 51.215°, -177.620° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 100 km SW of Adak, Alaska on February 18, 2023 at 23:59 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 23:06:35 UTC | 4.3mb | South Sandwich Islands region -55.310°, -27.720° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:06 UTC on February 18, 2023, a magnitude 4.3 tremor occurred in the South Sandwich Islands region. It arrived roughly 2 hours after a larger magnitude 5.7 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 23:04:08 UTC | 2.4ml | 42 km NNW of Beluga, Alaska 61.471°, -151.489° | 76.2 km | - | - | - | ✓ Reviewed | USGS → |
February 18, 2023 brought a magnitude 2.4 earthquake 42 km NNW of Beluga, Alaska, logged at 23:04 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 23:03:04 UTC | 5.2mb | Fiji region -17.540°, -178.701° | 545.1 km | - | I | green | ✓ Reviewed | USGS → |
On February 18, 2023, worldwide seismic activity registered a magnitude 5.2 earthquake in the Fiji region at 23:03 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:48:35 UTC | 2.7ml | Island of Hawaii, Hawaii 19.151°, -155.364° | 30.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place near Island of Hawaii, Hawaii on February 18, 2023 at 22:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 20 hours earlier. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:42:31 UTC | 2.2md | 9 km ENE of P?hala, Hawaii 19.236°, -155.395° | 29.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 9 km ENE of P?hala, Hawaii came in on February 18, 2023 at 22:42 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 20 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:33:57 UTC | 2.5md | 2km NW of The Geysers, CA 38.791°, -122.774° | -0.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 22:33 UTC on February 18, 2023, a magnitude 2.5 tremor occurred 2km NW of The Geysers, CA. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:28:10 UTC | 2.7ml | 52 km S of Adak, Alaska 51.406°, -176.619° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
February 18, 2023 brought a magnitude 2.7 earthquake 52 km S of Adak, Alaska, logged at 22:28 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:13:48 UTC | 4.7mwr | 94 km WNW of Puerto, Chile -19.944°, -71.009° | 16.1 km | 2 | - | - | ✓ Reviewed | USGS → |
February 18, 2023 brought a magnitude 4.7 earthquake 94 km WNW of Puerto, Chile, logged at 22:13 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:11:05 UTC | 2.6md | Puerto Rico region 17.945°, -67.009° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.6 earthquake in the Puerto Rico region came in on February 18, 2023 at 22:11 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 19 hours earlier. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:04:36 UTC | 2.0ml | 93 km W of Adak, Alaska 51.864°, -177.992° | 6.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 93 km W of Adak, Alaska with origin time 22:04 UTC on February 18, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 14 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 22:01:47 UTC | 2.5ml | 23 km SW of Tyonek, Alaska 60.944°, -151.488° | 74.0 km | - | - | - | ✓ Reviewed | USGS → |
February 18, 2023 brought a magnitude 2.5 earthquake 23 km SW of Tyonek, Alaska, logged at 22:01 UTC. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:54:38 UTC | 3.1ml | 120 km S of Sand Point, Alaska 54.261°, -160.304° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.1 earthquake 120 km S of Sand Point, Alaska came in on February 18, 2023 at 21:54 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:49:45 UTC | 4.6mb | South Sandwich Islands region -55.500°, -27.986° | 32.1 km | - | - | - | ✓ Reviewed | USGS → |
On February 18, 2023, worldwide seismic activity registered a magnitude 4.6 earthquake in the South Sandwich Islands region at 21:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.7 earthquake that occurred about 1 hours earlier. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:33:10 UTC | 4.0mb | New Ireland region, Papua New Guinea -5.648°, 153.965° | 37.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.0 earthquake in the New Ireland region, Papua New Guinea came in on February 18, 2023 at 21:33 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:27:58 UTC | 5.7mww | South Sandwich Islands region -55.418°, -27.804° | 12.9 km | - | III | green | ✓ Reviewed | USGS → |
On February 18, 2023 at 21:27 UTC, a magnitude 5.7 earthquake struck in the South Sandwich Islands region. 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 February 18, 2023. See the M5.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:18:34 UTC | 4.6mb | 162 km NNW of Palu, Indonesia 0.530°, 119.579° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:18 UTC on February 18, 2023, a magnitude 4.6 tremor occurred 162 km NNW of Palu, Indonesia. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:03:35 UTC | 2.1ml | 37 km E of Pedro Bay, Alaska 59.780°, -153.436° | 128.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 37 km E of Pedro Bay, Alaska on February 18, 2023 at 21:03 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 21:02:14 UTC | 3.1ml | 21 km ENE of Wright, Wyoming 43.798°, -105.230° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 seismic event took place 21 km ENE of Wright, Wyoming on February 18, 2023 at 21:02 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:43:06 UTC | 4.4mb | 97 km NW of Pante Makasar, Timor Leste -8.679°, 123.667° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 97 km NW of Pante Makasar, Timor Leste with origin time 20:43 UTC on February 18, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:34:20 UTC | 3.1md | 74 km N of Brenas, Puerto Rico 19.137°, -66.325° | 16.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 74 km N of Brenas, Puerto Rico at 20:34 UTC on February 18, 2023. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:29:52 UTC | 2.4ml | 56 km S of Whites City, New Mexico 31.670°, -104.452° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
On February 18, 2023 at 20:29 UTC, a magnitude 2.4 earthquake struck 56 km S of Whites City, New Mexico. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:20:59 UTC | 3.2ml | 25 km SE of Wright, Wyoming 43.615°, -105.239° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:20 UTC on February 18, 2023, a magnitude 3.2 tremor occurred 25 km SE of Wright, Wyoming. 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. | ||||||||
2023-02-18 2023-02-18 20:18:07 UTC | 2.3md | 20km S of Kettleman City, CA 35.833°, -119.949° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
February 18, 2023 brought a magnitude 2.3 earthquake 20km S of Kettleman City, CA, logged at 20:18 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:14:30 UTC | 4.6mb | 48 km S of Lithakiá, Greece 37.282°, 20.857° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake 48 km S of Lithakiá, Greece at 20:14 UTC on February 18, 2023. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:06:40 UTC | 2.0ml | 6 km SSW of Hennessey, Oklahoma 36.056°, -97.927° | 12.8 km | - | - | - | ✓ Reviewed | USGS → |
On February 18, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 6 km SSW of Hennessey, Oklahoma at 20:06 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 20:03:06 UTC | 2.0ml | 93 km W of Adak, Alaska 51.850°, -177.984° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:03 UTC on February 18, 2023, a magnitude 2.0 tremor occurred 93 km W of Adak, Alaska. It arrived roughly 12 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 19:55:20 UTC | 4.7mb | South Sandwich Islands region -55.607°, -28.166° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 18, 2023 at 19:55 UTC, a magnitude 4.7 earthquake struck in the South Sandwich Islands region. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 19:31:31 UTC | 5.0mww | 10 km ENE of Göksun, Turkey 38.070°, 36.599° | 12.2 km | 12 | - | - | ✓ Reviewed | USGS → |
At 19:31 UTC on February 18, 2023, a magnitude 5.0 tremor occurred 10 km ENE of Göksun, Turkey. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-18 2023-02-18 19:31:31 UTC | 2.2md | 2 km W of Tallaboa, Puerto Rico 17.999°, -66.741° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
On February 18, 2023 at 19:31 UTC, a magnitude 2.2 earthquake struck 2 km W of Tallaboa, Puerto Rico. It arrived roughly 16 hours after a larger magnitude 2.8 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.2 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 February 18, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.