Earthquakes on March 18, 2026: 265 Worldwide, Largest M5.2

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2026-03-18 2026-03-18 23:52:37 UTC	2.1ml	21 km ENE of Cantwell, Alaska 63.463°, -148.547°	1.9 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.1 earthquake was recorded 21 km ENE of Cantwell, Alaska on March 18, 2026 at 23:52 UTC. Coming 1 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 1.9 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 63.463°, -148.547°. 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.
2026-03-18 2026-03-18 23:44:04 UTC	2.4ml	21 km ENE of Cantwell, Alaska 63.471°, -148.569°	3.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.4 seismic event took place 21 km ENE of Cantwell, Alaska on March 18, 2026 at 23:44 UTC. At a depth of just 3.5 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 63.471°, -148.569°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 23:32:47 UTC	3.9md	99 km NW of Sandy Ground Village, Anguilla 18.717°, -63.856°	8.0 km	-	-	-	✓ Reviewed	USGS →
March 18, 2026 brought a magnitude 3.9 earthquake 99 km NW of Sandy Ground Village, Anguilla, logged at 23:32 UTC. This was a shallow crustal earthquake, focused at 8.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 18.717°, -63.856°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 23:20:42 UTC	2.0ml	116 km N of Yakutat, Alaska 60.596°, -139.737°	9.9 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.0 event was detected 116 km N of Yakutat, Alaska on March 18, 2026, with origin time 23:20 UTC. Coming 18 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 9.9 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 60.596°, -139.737°. 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.
2026-03-18 2026-03-18 22:50:25 UTC	2.6ml	113 km N of Yakutat, Alaska 60.569°, -139.757°	5.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.6 earthquake 113 km N of Yakutat, Alaska at 22:50 UTC on March 18, 2026. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 18 hours earlier. At a depth of 5.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 60.569°N, -139.757°E. 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.
2026-03-18 2026-03-18 22:31:33 UTC	2.4ml	47 km NE of Yakutat, Alaska 59.805°, -139.066°	3.5 km	-	-	-	✓ Reviewed	USGS →
March 18, 2026 brought a magnitude 2.4 earthquake 47 km NE of Yakutat, Alaska, logged at 22:31 UTC. At a depth of just 3.5 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 59.805°, -139.066°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 22:11:24 UTC	4.3mb	2 km ESE of Polo, Philippines 16.186°, 119.970°	35.0 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026, worldwide seismic activity registered a magnitude 4.3 earthquake 2 km ESE of Polo, Philippines at 22:11 UTC. At a depth of 35.0 km, the event was shallow crustal. The epicenter is at 16.186°, 119.970°. 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.
2026-03-18 2026-03-18 22:09:13 UTC	2.5ml	70 km SE of Chalkyitsik, Alaska 66.194°, -142.642°	6.3 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.5 earthquake 70 km SE of Chalkyitsik, Alaska with origin time 22:09 UTC on March 18, 2026. The hypocenter lay at 6.3 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 66.194°, -142.642°. 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.
2026-03-18 2026-03-18 22:07:55 UTC	4.5mb	54 km SSW of Maisí, Cuba 19.773°, -74.298°	12.5 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026 at 22:07 UTC, a magnitude 4.5 earthquake struck 54 km SSW of Maisí, Cuba. The hypocenter lay at 12.5 km, placing this in the shallow crustal category. Coordinates: 19.773°, -74.298°. 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.
2026-03-18 2026-03-18 21:33:03 UTC	4.2mb	13 km NW of Baradères, Haiti 18.572°, -73.727°	14.5 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026 at 21:33 UTC, a magnitude 4.2 earthquake struck 13 km NW of Baradères, Haiti. The hypocenter lay at 14.5 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 18.572°N, -73.727°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 21:23:02 UTC	4.6mb	49 km E of Yokohama, Japan 41.019°, 141.833°	66.7 km	1	-	-	✓ Reviewed	USGS →
On March 18, 2026 at 21:23 UTC, a magnitude 4.6 earthquake struck 49 km E of Yokohama, Japan. A small number of nearby observers (1) submitted felt reports to the USGS. The event originated approximately 66.7 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 41.019°N, 141.833°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 21:07:50 UTC	4.8mb	south of the Kermadec Islands -33.049°, -178.540°	10.0 km	-	-	-	✓ Reviewed	USGS →
At 21:07 UTC on March 18, 2026, a magnitude 4.8 tremor occurred south of the Kermadec Islands. It ranks as the fifth largest event in the current dataset. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. Geolocation places the event at -33.049°N, -178.540°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 21:02:38 UTC	2.4ml	212 km W of Adak, Alaska 51.790°, -179.713°	135.7 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026 at 21:02 UTC, a magnitude 2.4 earthquake struck 212 km W of Adak, Alaska. The hypocenter lay at 135.7 km, placing this in the intermediate depth category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at 51.790°N, -179.713°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 20:54:49 UTC	2.0ml	12 km ESE of Susitna, Alaska 61.494°, -150.294°	57.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.0 earthquake 12 km ESE of Susitna, Alaska came in on March 18, 2026 at 20:54 UTC. This was a shallow crustal earthquake, focused at 57.0 km depth. The epicenter is at 61.494°, -150.294°. 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.
2026-03-18 2026-03-18 20:51:05 UTC	4.5mb	Fiji region -19.337°, -177.553°	572.0 km	2	-	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded in the Fiji region on March 18, 2026 at 20:51 UTC. At 572.0 km, this is the deepest earthquake in the current dataset — firmly in the deep-focus category. A small number of nearby observers (2) submitted felt reports to the USGS. The epicenter is at -19.337°, -177.553°. 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.
2026-03-18 2026-03-18 20:33:18 UTC	2.6ml	Rat Islands, Aleutian Islands, Alaska 51.648°, 178.028°	70.3 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.6 event was detected near Rat Islands, Aleutian Islands, Alaska on March 18, 2026, with origin time 20:33 UTC. The event originated approximately 70.3 km below the surface, classifying it as intermediate depth. Coordinates: 51.648°, 178.028°. 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.
2026-03-18 2026-03-18 20:19:45 UTC	4.2ml	74 km S of Kaktovik, Alaska 69.467°, -143.589°	4.9 km	-	IV	-	✓ Reviewed	USGS →
A magnitude 4.2 earthquake was recorded 74 km S of Kaktovik, Alaska on March 18, 2026 at 20:19 UTC. Peak ground motion corresponded to MMI 4.3, classified as moderate shaking. At a depth of just 4.9 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. Coordinates: 69.467°, -143.589°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 19:57:42 UTC	2.9ml	29 km S of Centennial Park, Arizona 36.688°, -113.041°	11.8 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.9 event was detected 29 km S of Centennial Park, Arizona on March 18, 2026, with origin time 19:57 UTC. The hypocenter lay at 11.8 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 36.688°N, -113.041°E. 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.
2026-03-18 2026-03-18 19:47:27 UTC	2.5md	5 km WSW of Liborio Negron Torres, Puerto Rico 18.016°, -66.985°	11.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.5 earthquake was recorded 5 km WSW of Liborio Negron Torres, Puerto Rico on March 18, 2026 at 19:47 UTC. This was a shallow crustal earthquake, focused at 11.6 km depth. Geolocation places the event at 18.016°N, -66.985°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.
2026-03-18 2026-03-18 19:44:55 UTC	2.2ml	78 km SE of Adak, Alaska 51.296°, -175.997°	6.6 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026, worldwide seismic activity registered a magnitude 2.2 earthquake 78 km SE of Adak, Alaska at 19:44 UTC. At a depth of 6.6 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 51.296°, -175.997°. 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.
2026-03-18 2026-03-18 19:34:59 UTC	3.5mb	112 km SSE of Sand Point, Alaska 54.371°, -159.991°	10.0 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026, worldwide seismic activity registered a magnitude 3.5 earthquake 112 km SSE of Sand Point, Alaska at 19:34 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. The epicenter is at 54.371°, -159.991°. 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.
2026-03-18 2026-03-18 19:30:47 UTC	2.9ml	82 km S of Kaktovik, Alaska 69.395°, -143.669°	2.8 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.9 earthquake 82 km S of Kaktovik, Alaska came in on March 18, 2026 at 19:30 UTC. At a depth of just 2.8 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. Coordinates: 69.395°, -143.669°. 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.
2026-03-18 2026-03-18 19:13:12 UTC	2.0ml	17 km WNW of Four Mile Road, Alaska 64.656°, -149.468°	15.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 seismic event took place 17 km WNW of Four Mile Road, Alaska on March 18, 2026 at 19:13 UTC. The hypocenter lay at 15.7 km, placing this in the shallow crustal category. Geolocation places the event at 64.656°N, -149.468°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.
2026-03-18 2026-03-18 19:06:45 UTC	2.3ml	32 km WNW of Puako, Hawaii 20.055°, -156.136°	40.3 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.3 earthquake 32 km WNW of Puako, Hawaii with origin time 19:06 UTC on March 18, 2026. The hypocenter lay at 40.3 km, placing this in the shallow crustal category. Geolocation places the event at 20.055°N, -156.136°E. 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.
2026-03-18 2026-03-18 18:42:49 UTC	2.6ml	31 km WNW of Nikiski, Alaska 60.797°, -151.826°	86.3 km	2	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.6 earthquake 31 km WNW of Nikiski, Alaska came in on March 18, 2026 at 18:42 UTC. A small number of nearby observers (2) submitted felt reports to the USGS. This was a intermediate depth earthquake, focused at 86.3 km depth. The epicenter is at 60.797°, -151.826°. 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.
2026-03-18 2026-03-18 18:31:32 UTC	2.1ml	60 km S of Whites City, New Mexico 31.633°, -104.365°	6.1 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 60 km S of Whites City, New Mexico with origin time 18:31 UTC on March 18, 2026. It arrived roughly 5 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 6.1 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 31.633°, -104.365°. 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.
2026-03-18 2026-03-18 18:29:26 UTC	3.7mb	124 km ESE of Attu Station, Alaska 52.269°, 174.765°	66.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.7 earthquake was recorded 124 km ESE of Attu Station, Alaska on March 18, 2026 at 18:29 UTC. At a depth of 66.0 km, the event was shallow crustal. Geolocation places the event at 52.269°N, 174.765°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-18 2026-03-18 18:21:52 UTC	2.1ml	54 km ENE of Pedro Bay, Alaska 60.042°, -153.270°	139.8 km	-	-	-	✓ Reviewed	USGS →
On March 18, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 54 km ENE of Pedro Bay, Alaska at 18:21 UTC. At a depth of 139.8 km, the event was intermediate depth. Geolocation places the event at 60.042°N, -153.270°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.
2026-03-18 2026-03-18 17:53:02 UTC	2.5md	4 km SW of San Juan Bautista, CA 36.821°, -121.569°	8.3 km	2	-	-	✓ Reviewed	USGS →
March 18, 2026 brought a magnitude 2.5 earthquake 4 km SW of San Juan Bautista, CA, logged at 17:53 UTC. A small number of nearby observers (2) submitted felt reports to the USGS. At a depth of 8.3 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 36.821°, -121.569°. 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.
2026-03-18 2026-03-18 17:52:12 UTC	3.1ml	95 km E of Nikolski, Alaska 52.799°, -167.468°	7.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.1 earthquake was recorded 95 km E of Nikolski, Alaska on March 18, 2026 at 17:52 UTC. This was a shallow crustal earthquake, focused at 7.7 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 52.799°, -167.468°. 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.

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 March 18, 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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