Earthquakes on February 21, 2026: 288 Worldwide, Largest M5.9

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2026-02-21 2026-02-21 23:55:13 UTC	2.1md	2 km NNE of Guayanilla, Puerto Rico 18.039°, -66.782°	15.6 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 2 km NNE of Guayanilla, Puerto Rico with origin time 23:55 UTC on February 21, 2026. Coming 18 hours after a magnitude 2.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 15.6 km below the surface, classifying it as shallow crustal. Coordinates: 18.039°, -66.782°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:55:04 UTC	4.9mww	132 km W of Riverton, New Zealand -46.215°, 166.309°	35.0 km	1	III	green	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 4.9 earthquake 132 km W of Riverton, New Zealand at 23:55 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. Maximum shaking intensity peaked at MMI 3.8 (light). It ranks as the fourth largest event in the current dataset. A small number of nearby observers (1) submitted felt reports to the USGS. This was a shallow crustal earthquake, focused at 35.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at -46.215°, 166.309°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:52:12 UTC	2.2ml	42 km SW of Karluk, Alaska 57.301°, -154.949°	53.7 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026 at 23:52 UTC, a magnitude 2.2 earthquake struck 42 km SW of Karluk, Alaska. It arrived roughly 8 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event originated approximately 53.7 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 57.301°, -154.949°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:52:04 UTC	3.4md	120 km NE of Cruz Bay, U.S. Virgin Islands 19.207°, -64.117°	38.8 km	-	-	-	✓ Reviewed	USGS →
This magnitude 3.4 event was detected 120 km NE of Cruz Bay, U.S. Virgin Islands on February 21, 2026, with origin time 23:52 UTC. The event originated approximately 38.8 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 19.207°N, -64.117°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:42:07 UTC	2.1ml	43 km WNW of Ninilchik, Alaska 60.196°, -152.400°	93.2 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.1 event was detected 43 km WNW of Ninilchik, Alaska on February 21, 2026, with origin time 23:42 UTC. The event originated approximately 93.2 km below the surface, classifying it as intermediate depth. Geolocation places the event at 60.196°N, -152.400°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:40:00 UTC	2.2ml	27 km WNW of Nikiski, Alaska 60.785°, -151.759°	83.3 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 earthquake was recorded 27 km WNW of Nikiski, Alaska on February 21, 2026 at 23:40 UTC. This was a intermediate depth earthquake, focused at 83.3 km depth. Geolocation places the event at 60.785°N, -151.759°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:34:08 UTC	2.1ml	30 km WNW of Valdez, Alaska 61.250°, -146.869°	16.7 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.1 earthquake 30 km WNW of Valdez, Alaska came in on February 21, 2026 at 23:34 UTC. This was a shallow crustal earthquake, focused at 16.7 km depth. Coordinates: 61.250°, -146.869°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:18:12 UTC	2.2ml	87 km ESE of Egegik, Alaska 57.944°, -155.983°	119.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.2 earthquake 87 km ESE of Egegik, Alaska with origin time 23:18 UTC on February 21, 2026. The hypocenter lay at 119.0 km, placing this in the intermediate depth category. Coordinates: 57.944°, -155.983°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:10:55 UTC	4.3mb	Mariana Islands region 21.328°, 145.862°	19.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.3 earthquake in the Mariana Islands region with origin time 23:10 UTC on February 21, 2026. The event originated approximately 19.2 km below the surface, classifying it as shallow crustal. Geolocation places the event at 21.328°N, 145.862°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 23:00:40 UTC	2.3ml	8 km ESE of Ratliff City, Oklahoma 34.411°, -97.433°	5.1 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 2.3 earthquake 8 km ESE of Ratliff City, Oklahoma at 23:00 UTC. This was a shallow crustal earthquake, focused at 5.1 km depth. Coordinates: 34.411°, -97.433°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 22:45:09 UTC	2.1ml	44 km SSE of Nelchina, Alaska 61.637°, -146.398°	16.1 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.1 seismic event took place 44 km SSE of Nelchina, Alaska on February 21, 2026 at 22:45 UTC. The hypocenter lay at 16.1 km, placing this in the shallow crustal category. The epicenter is at 61.637°, -146.398°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 22:10:45 UTC	2.7ml	12 km WSW of Stanton, Texas 32.105°, -101.916°	8.7 km	1	-	-	✓ Reviewed	USGS →
February 21, 2026 brought a magnitude 2.7 earthquake 12 km WSW of Stanton, Texas, logged at 22:10 UTC. Coming 1 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. A small number of nearby observers (1) submitted felt reports to the USGS. This was a shallow crustal earthquake, focused at 8.7 km depth. Coordinates: 32.105°, -101.916°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:57:55 UTC	2.2ml	57 km SE of King Salmon, Alaska 58.284°, -156.041°	156.4 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 57 km SE of King Salmon, Alaska at 21:57 UTC. At a depth of 156.4 km, the event was intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at 58.284°, -156.041°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:54:25 UTC	2.0ml	76 km NW of Yakutat, Alaska 59.977°, -140.784°	9.1 km	-	-	-	✓ Reviewed	USGS →
At 21:54 UTC on February 21, 2026, a magnitude 2.0 tremor occurred 76 km NW of Yakutat, Alaska. The hypocenter lay at 9.1 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 59.977°N, -140.784°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:46:52 UTC	2.5md	49 km WNW of Lincoln City, Oregon 45.087°, -124.617°	33.8 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.5 earthquake 49 km WNW of Lincoln City, Oregon came in on February 21, 2026 at 21:46 UTC. This was a shallow crustal earthquake, focused at 33.8 km depth. Geolocation places the event at 45.087°N, -124.617°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:46:13 UTC	3.5ml	off the coast of Oregon 43.984°, -128.195°	10.0 km	-	-	-	✓ Reviewed	USGS →
At 21:46 UTC on February 21, 2026, a magnitude 3.5 tremor occurred near off the coast of Oregon. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. Coordinates: 43.984°, -128.195°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:26:57 UTC	2.5ml	11 km N of Houston, Alaska 61.730°, -149.818°	23.3 km	1	-	-	✓ Reviewed	USGS →
February 21, 2026 brought a magnitude 2.5 earthquake 11 km N of Houston, Alaska, logged at 21:26 UTC. A small number of nearby observers (1) submitted felt reports to the USGS. At a depth of 23.3 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 61.730°, -149.818°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:20:23 UTC	4.1mb	71 km SSE of Kuqa, China 41.132°, 83.279°	10.0 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 4.1 earthquake 71 km SSE of Kuqa, China at 21:20 UTC. At a depth of 10.0 km, the event was shallow crustal. The epicenter is at 41.132°, 83.279°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 21:15:27 UTC	2.9ml	12 km WSW of Stanton, Texas 32.105°, -101.916°	8.6 km	2	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.9 earthquake 12 km WSW of Stanton, Texas came in on February 21, 2026 at 21:15 UTC. A small number of nearby observers (2) submitted felt reports to the USGS. At a depth of 8.6 km, the event was shallow crustal. The epicenter is at 32.105°, -101.916°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:49:50 UTC	3.1ml	101 km SSE of Adak, Alaska 51.015°, -176.142°	17.6 km	-	-	-	✓ Reviewed	USGS →
February 21, 2026 brought a magnitude 3.1 earthquake 101 km SSE of Adak, Alaska, logged at 20:49 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.6 earthquake that occurred about 9 hours earlier. At a depth of 17.6 km, the event was shallow crustal. Geolocation places the event at 51.015°N, -176.142°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:28:47 UTC	4.5mb	254 km N of Tobelo, Indonesia 4.008°, 128.290°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded 254 km N of Tobelo, Indonesia on February 21, 2026 at 20:28 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 4.008°, 128.290°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:27:11 UTC	2.2ml	90 km NNW of Aleneva, Alaska 58.853°, -153.225°	68.5 km	-	-	-	✓ Reviewed	USGS →
At 20:27 UTC on February 21, 2026, a magnitude 2.2 tremor occurred 90 km NNW of Aleneva, Alaska. The event originated approximately 68.5 km below the surface, classifying it as shallow crustal. Geolocation places the event at 58.853°N, -153.225°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:17:18 UTC	2.5md	2 km NW of The Geysers, CA 38.786°, -122.773°	1.0 km	1	-	-	✓ Reviewed	USGS →
A magnitude 2.5 seismic event took place 2 km NW of The Geysers, CA on February 21, 2026 at 20:17 UTC. Coming 3 hours after a magnitude 4.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 1.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. A small number of nearby observers (1) submitted felt reports to the USGS. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 38.786°, -122.773°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:16:39 UTC	2.2ml	14 km ESE of Pāhala, Hawaii 19.152°, -155.356°	29.2 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 seismic event took place 14 km ESE of Pāhala, Hawaii on February 21, 2026 at 20:16 UTC. The hypocenter lay at 29.2 km, placing this in the shallow crustal category. Geolocation places the event at 19.152°N, -155.356°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 20:10:03 UTC	4.5mb	Southwest Indian Ridge -40.154°, 45.530°	10.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.5 earthquake near Southwest Indian Ridge with origin time 20:10 UTC on February 21, 2026. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. The epicenter is at -40.154°, 45.530°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 19:53:48 UTC	2.3ml	96 km E of Nikolski, Alaska 52.805°, -167.442°	1.3 km	-	-	-	✓ Reviewed	USGS →
At 19:53 UTC on February 21, 2026, a magnitude 2.3 tremor occurred 96 km E of Nikolski, Alaska. At a depth of just 1.3 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 52.805°, -167.442°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 19:03:32 UTC	2.0md	22 km SSW of Tahoma, CA 38.888°, -120.246°	4.8 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 22 km SSW of Tahoma, CA at 19:03 UTC. At a depth of just 4.8 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The epicenter is at 38.888°, -120.246°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 18:59:33 UTC	4.5mb	116 km SSE of Kirakira, Solomon Islands -11.370°, 162.446°	10.0 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 4.5 earthquake 116 km SSE of Kirakira, Solomon Islands at 18:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.9 earthquake that occurred about 2 hours earlier. At a depth of 10.0 km, the event was shallow crustal. Geolocation places the event at -11.370°N, 162.446°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 18:55:25 UTC	4.3mb	222 km ENE of Kuril’sk, Russia 45.908°, 150.559°	143.6 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake 222 km ENE of Kuril’sk, Russia at 18:55 UTC. This was a intermediate depth earthquake, focused at 143.6 km depth. Coordinates: 45.908°, 150.559°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-02-21 2026-02-21 18:51:20 UTC	2.6ml	138 km SSE of Sand Point, Alaska 54.164°, -159.780°	26.1 km	-	-	-	✓ Reviewed	USGS →
On February 21, 2026, worldwide seismic activity registered a magnitude 2.6 earthquake 138 km SSE of Sand Point, Alaska at 18:51 UTC. This was a shallow crustal earthquake, focused at 26.1 km depth. The epicenter is at 54.164°, -159.780°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.6 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 21, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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