Earthquakes on March 4, 2026: 281 Worldwide, Largest M6.4

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2026-03-04 2026-03-04 23:48:57 UTC	2.1md	3 km WSW of Guánica, Puerto Rico 17.956°, -66.936°	9.7 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 3 km WSW of Guánica, Puerto Rico with origin time 23:48 UTC on March 4, 2026. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 1 hours earlier. The hypocenter lay at 9.7 km, placing this in the shallow crustal category. Geolocation places the event at 17.956°N, -66.936°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.
2026-03-04 2026-03-04 23:38:14 UTC	2.0ml	46 km E of Pedro Bay, Alaska 59.783°, -153.270°	130.3 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.0 earthquake 46 km E of Pedro Bay, Alaska at 23:38 UTC on March 4, 2026. At a depth of 130.3 km, the event was intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: 59.783°, -153.270°. 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.
2026-03-04 2026-03-04 23:29:43 UTC	2.4ml	89 km SE of Akutan, Alaska 53.590°, -164.784°	48.3 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.4 event was detected 89 km SE of Akutan, Alaska on March 4, 2026, with origin time 23:29 UTC. The event originated approximately 48.3 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 53.590°, -164.784°. 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.
2026-03-04 2026-03-04 23:00:34 UTC	2.5md	4 km SW of Guánica, Puerto Rico 17.951°, -66.939°	9.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.5 earthquake 4 km SW of Guánica, Puerto Rico with origin time 23:00 UTC on March 4, 2026. The event originated approximately 9.2 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 17.951°N, -66.939°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.
2026-03-04 2026-03-04 22:14:56 UTC	4.1mb	230 km ESE of Attu Station, Alaska 52.387°, 176.508°	8.8 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.1 earthquake 230 km ESE of Attu Station, Alaska at 22:14 UTC on March 4, 2026. Coming 4 hours after a magnitude 6.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This was a shallow crustal earthquake, focused at 8.8 km depth. Coordinates: 52.387°, 176.508°. 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.
2026-03-04 2026-03-04 22:10:46 UTC	2.6ml	34 km W of Indian Springs, Nevada 36.612°, -116.050°	6.7 km	-	-	-	✓ Reviewed	USGS →
March 4, 2026 brought a magnitude 2.6 earthquake 34 km W of Indian Springs, Nevada, logged at 22:10 UTC. This was a shallow crustal earthquake, focused at 6.7 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 36.612°N, -116.050°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.
2026-03-04 2026-03-04 22:07:12 UTC	3.6mb	96 km SW of Nikolski, Alaska 52.308°, -169.831°	2.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.6 seismic event took place 96 km SW of Nikolski, Alaska on March 4, 2026 at 22:07 UTC. At a depth of just 2.5 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 52.308°, -169.831°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 22:05:42 UTC	2.6ml	92 km SW of Nikolski, Alaska 52.331°, -169.790°	6.8 km	-	-	-	✓ Reviewed	USGS →
At 22:05 UTC on March 4, 2026, a magnitude 2.6 tremor occurred 92 km SW of Nikolski, Alaska. Coming 16 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 6.8 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 52.331°, -169.790°. 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.
2026-03-04 2026-03-04 22:03:12 UTC	2.2md	5 km WSW of Napavine, Washington 46.546°, -122.974°	-0.3 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026 at 22:03 UTC, a magnitude 2.2 earthquake struck 5 km WSW of Napavine, Washington. At a depth of just -0.3 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 46.546°, -122.974°. 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.
2026-03-04 2026-03-04 21:44:50 UTC	4.0mb	29 km WSW of Sarabetsu, Japan 42.534°, 142.868°	105.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.0 seismic event took place 29 km WSW of Sarabetsu, Japan on March 4, 2026 at 21:44 UTC. The event originated approximately 105.8 km below the surface, classifying it as intermediate depth. Coordinates: 42.534°, 142.868°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 21:36:50 UTC	2.7ml	129 km WSW of Adak, Alaska 51.407°, -178.343°	35.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.7 seismic event took place 129 km WSW of Adak, Alaska on March 4, 2026 at 21:36 UTC. Coming 14 hours after a magnitude 3.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. Coordinates: 51.407°, -178.343°. 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.
2026-03-04 2026-03-04 21:20:14 UTC	2.0ml	61 km WNW of Petersville, Alaska 62.723°, -151.857°	5.9 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.0 event was detected 61 km WNW of Petersville, Alaska on March 4, 2026, with origin time 21:20 UTC. The event originated approximately 5.9 km below the surface, classifying it as shallow crustal. The epicenter is at 62.723°, -151.857°. 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.
2026-03-04 2026-03-04 21:12:27 UTC	2.6ml	75 km NE of Tonopah, Nevada 38.470°, -116.532°	6.5 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026 at 21:12 UTC, a magnitude 2.6 earthquake struck 75 km NE of Tonopah, Nevada. The hypocenter lay at 6.5 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 38.470°, -116.532°. 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.
2026-03-04 2026-03-04 21:00:38 UTC	3.2ml	12 km ENE of Wright, Wyoming 43.782°, -105.345°	0.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.2 earthquake was recorded 12 km ENE of Wright, Wyoming on March 4, 2026 at 21:00 UTC. At a depth of just 0.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The epicenter is at 43.782°, -105.345°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 21:00:32 UTC	2.2ml	90 km E of Nikolski, Alaska 52.852°, -167.525°	35.0 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026 at 21:00 UTC, a magnitude 2.2 earthquake struck 90 km E of Nikolski, Alaska. The hypocenter lay at 35.0 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 52.852°N, -167.525°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.
2026-03-04 2026-03-04 20:21:37 UTC	3.5ml	36 km WSW of Denali Park, Alaska 63.638°, -149.616°	121.9 km	-	I	-	✓ Reviewed	USGS →
March 4, 2026 brought a magnitude 3.5 earthquake 36 km WSW of Denali Park, Alaska, logged at 20:21 UTC. On the Modified Mercalli scale, shaking reached 1.3 — considered weak. At a depth of 121.9 km, the event was intermediate depth. Geolocation places the event at 63.638°N, -149.616°E. 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.
2026-03-04 2026-03-04 20:20:04 UTC	2.1ml	70 km ESE of Denali National Park, Alaska 63.266°, -150.453°	126.8 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 70 km ESE of Denali National Park, Alaska at 20:20 UTC. Coming 13 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of 126.8 km, the event was intermediate depth. Coordinates: 63.266°, -150.453°. 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.
2026-03-04 2026-03-04 20:04:05 UTC	2.0ml	111 km N of Yakutat, Alaska 60.542°, -139.910°	2.9 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.0 earthquake 111 km N of Yakutat, Alaska came in on March 4, 2026 at 20:04 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 6 hours earlier. At a depth of just 2.9 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. Geolocation places the event at 60.542°N, -139.910°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.
2026-03-04 2026-03-04 19:39:50 UTC	4.5mb	247 km ESE of Attu Station, Alaska 51.993°, 176.541°	10.0 km	-	II	-	✓ Reviewed	USGS →
A magnitude 4.5 earthquake was recorded 247 km ESE of Attu Station, Alaska on March 4, 2026 at 19:39 UTC. Peak ground motion corresponded to MMI 2.8, classified as weak shaking. This was a shallow crustal earthquake, focused at 10.0 km depth. Coordinates: 51.993°, 176.541°. 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.
2026-03-04 2026-03-04 19:21:37 UTC	3.8mb	224 km ESE of Attu Station, Alaska 52.043°, 176.212°	24.4 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026, worldwide seismic activity registered a magnitude 3.8 earthquake 224 km ESE of Attu Station, Alaska at 19:21 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 6 hours earlier. This was a shallow crustal earthquake, focused at 24.4 km depth. Geolocation places the event at 52.043°N, 176.212°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 19:04:44 UTC	4.8mb	229 km ESE of Attu Station, Alaska 51.909°, 176.196°	10.0 km	-	II	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.8 earthquake 229 km ESE of Attu Station, Alaska at 19:04 UTC on March 4, 2026. Peak ground motion corresponded to MMI 2.8, classified as weak shaking. At a depth of 10.0 km, the event was shallow crustal. Coordinates: 51.909°, 176.196°. 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.
2026-03-04 2026-03-04 18:57:59 UTC	2.1ml	34 km NW of Valdez, Alaska 61.360°, -146.785°	15.9 km	-	-	-	✓ Reviewed	USGS →
At 18:57 UTC on March 4, 2026, a magnitude 2.1 tremor occurred 34 km NW of Valdez, Alaska. The event originated approximately 15.9 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 61.360°, -146.785°. 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.
2026-03-04 2026-03-04 18:56:24 UTC	5.3mb	73 km SSW of Chirilagua, El Salvador 12.583°, -88.323°	46.5 km	7	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 5.3 earthquake 73 km SSW of Chirilagua, El Salvador with origin time 18:56 UTC on March 4, 2026. It ranks as the third largest event in the current dataset. A small number of nearby observers (7) submitted felt reports to the USGS. The event originated approximately 46.5 km below the surface, classifying it as shallow crustal. Coordinates: 12.583°, -88.323°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 18:50:02 UTC	2.1ml	24 km WSW of Olancha, CA 36.227°, -118.263°	4.7 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.1 earthquake 24 km WSW of Olancha, CA at 18:50 UTC on March 4, 2026. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 1 hours earlier. At a depth of just 4.7 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Geolocation places the event at 36.227°N, -118.263°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.
2026-03-04 2026-03-04 18:34:28 UTC	2.2md	3 km W of Fuig, Puerto Rico 17.992°, -66.951°	10.9 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 seismic event took place 3 km W of Fuig, Puerto Rico on March 4, 2026 at 18:34 UTC. Coming 9 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 10.9 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 17.992°, -66.951°. 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.
2026-03-04 2026-03-04 18:34:17 UTC	4.4mb	124 km SSW of Hihifo, Tonga -17.029°, -174.133°	143.1 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026 at 18:34 UTC, a magnitude 4.4 earthquake struck 124 km SSW of Hihifo, Tonga. The hypocenter lay at 143.1 km, placing this in the intermediate depth category. Coordinates: -17.029°, -174.133°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 18:33:57 UTC	3.7mb	219 km ESE of Attu Station, Alaska 52.142°, 176.210°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 3.7 event was detected 219 km ESE of Attu Station, Alaska on March 4, 2026, with origin time 18:33 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.4 earthquake that occurred about 5 hours earlier. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. Geolocation places the event at 52.142°N, 176.210°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.
2026-03-04 2026-03-04 18:20:21 UTC	2.6ml	23 km W of Susitna, Alaska 61.584°, -150.954°	66.3 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.6 earthquake 23 km W of Susitna, Alaska at 18:20 UTC on March 4, 2026. This was a shallow crustal earthquake, focused at 66.3 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 61.584°, -150.954°. 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.
2026-03-04 2026-03-04 18:14:19 UTC	4.4mb	227 km ESE of Attu Station, Alaska 51.996°, 176.226°	10.0 km	-	II	-	✓ Reviewed	USGS →
A magnitude 4.4 earthquake was recorded 227 km ESE of Attu Station, Alaska on March 4, 2026 at 18:14 UTC. Maximum shaking intensity peaked at MMI 2.6 (weak). At a depth of 10.0 km, the event was shallow crustal. The epicenter is at 51.996°, 176.226°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2026-03-04 2026-03-04 18:08:05 UTC	4.9mb	149 km WSW of Fakfak, Indonesia -3.192°, 130.979°	10.0 km	-	-	-	✓ Reviewed	USGS →
On March 4, 2026, worldwide seismic activity registered a magnitude 4.9 earthquake 149 km WSW of Fakfak, Indonesia at 18:08 UTC. It ranks as the fourth largest event in the current dataset. This was a shallow crustal earthquake, focused at 10.0 km depth. The epicenter is at -3.192°, 130.979°. 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.

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 4, 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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