Earthquakes on March 15, 2026
258
EARTHQUAKES on March 15, 2026
24-hour UTC period · USGS data
LARGEST: M5.3 — Off the coast of Aisen, Chile
10 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
37
M3.0–3.9
9
M2.0–2.9
61
M1.0–1.9
149
Activity Summary
258
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.3
Off the coast of Aisen, Chile
08:28 UTC · 10.0 km deep
Felt by 1
5.3
64 km SSW of Intipucá, El Salvador
05:00 UTC · 64.8 km deep
Felt by 8
4.9
central Mid-Atlantic Ridge
22:39 UTC · 10.0 km deep
4.9
84 km SSW of Honchō, Japan
18:56 UTC · 41.4 km deep
Felt by 1
4.9
1 km SW of Kiryū, Japan
05:06 UTC · 95.6 km deep
Felt by 14
4.8
139 km SSE of Honchō, Japan
16:32 UTC · 42.9 km deep
4.8
56 km SSE of Yilan, Taiwan
08:14 UTC · 32.1 km deep
Felt by 16
4.8
1 km S of Ixtahuacán, Guatemala
00:22 UTC · 178.9 km deep
Felt by 1
Earthquake Map — March 15, 2026
All Earthquakes — March 15, 2026
Showing 30 of 109 (filtered from 258)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-03-15 2026-03-15 23:58:17 UTC | 2.9ml | 26 km ENE of Sterling, Alaska 60.626°, -150.307° | 38.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 26 km ENE of Sterling, Alaska on March 15, 2026 at 23:58 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 23:55:28 UTC | 4.3mb | 164 km ESE of Kokopo, Papua New Guinea -5.096°, 153.548° | 53.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 164 km ESE of Kokopo, Papua New Guinea on March 15, 2026, with origin time 23:55 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 23:41:01 UTC | 2.5ml | 65 km ESE of Cantwell, Alaska 63.189°, -147.715° | 0.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.5 earthquake 65 km ESE of Cantwell, Alaska came in on March 15, 2026 at 23:41 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 23:23:56 UTC | 4.4mb | 0 km N of Guoliang, China 29.773°, 105.923° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 15, 2026, worldwide seismic activity registered a magnitude 4.4 earthquake 0 km N of Guoliang, China at 23:23 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:54:38 UTC | 2.0ml | 113 km N of Yakutat, Alaska 60.560°, -139.843° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
March 15, 2026 brought a magnitude 2.0 earthquake 113 km N of Yakutat, Alaska, logged at 22:54 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:51:22 UTC | 2.6ml | 79 km WSW of Nikolski, Alaska 52.585°, -169.890° | 10.1 km | - | - | - | ✓ Reviewed | USGS → |
On March 15, 2026, worldwide seismic activity registered a magnitude 2.6 earthquake 79 km WSW of Nikolski, Alaska at 22:51 UTC. Coming 20 hours after a magnitude 2.7 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:50:30 UTC | 2.8md | 33 km W of Petrolia, CA 40.343°, -124.678° | 21.7 km | - | - | - | ✓ Reviewed | USGS → |
On March 15, 2026 at 22:50 UTC, a magnitude 2.8 earthquake struck 33 km W of Petrolia, CA. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:45:53 UTC | 4.6mb | 229 km ESE of Attu Station, Alaska 52.137°, 176.353° | 10.0 km | - | II | - | ✓ Reviewed | USGS → |
March 15, 2026 brought a magnitude 4.6 earthquake 229 km ESE of Attu Station, Alaska, logged at 22:45 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:45:40 UTC | 2.0ml | 110 km N of Yakutat, Alaska 60.518°, -140.096° | 10.7 km | - | - | - | ✓ Reviewed | USGS → |
On March 15, 2026 at 22:45 UTC, a magnitude 2.0 earthquake struck 110 km N of Yakutat, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:39:43 UTC | 4.9mb | central Mid-Atlantic Ridge 8.986°, -40.798° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake near central Mid-Atlantic Ridge with origin time 22:39 UTC on March 15, 2026. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:34:51 UTC | 2.2ml | 45 km NE of Fox River, Alaska 60.106°, -150.314° | 45.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 45 km NE of Fox River, Alaska came in on March 15, 2026 at 22:34 UTC. It arrived roughly 15 hours after a larger magnitude 2.5 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. | ||||||||
2026-03-15 2026-03-15 22:31:47 UTC | 2.1ml | 91 km E of McCarthy, Alaska 61.578°, -141.236° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 91 km E of McCarthy, Alaska with origin time 22:31 UTC on March 15, 2026. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:31:01 UTC | 2.6ml | 51 km SSE of Nikolski, Alaska 52.491°, -168.698° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:31 UTC on March 15, 2026, a magnitude 2.6 tremor occurred 51 km SSE of Nikolski, Alaska. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 22:06:09 UTC | 3.4ml | 232 km ESE of Attu Station, Alaska 51.882°, 176.214° | 25.3 km | - | I | - | ✓ Reviewed | USGS → |
On March 15, 2026 at 22:06 UTC, a magnitude 3.4 earthquake struck 232 km ESE of Attu Station, Alaska. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 21:48:38 UTC | 4.3mb | 251 km SSE of Ambon, Indonesia -5.849°, 128.922° | 269.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake 251 km SSE of Ambon, Indonesia came in on March 15, 2026 at 21:48 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 21:34:37 UTC | 2.0ml | 3 km WSW of Glennallen, Alaska 62.094°, -145.602° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 3 km WSW of Glennallen, Alaska on March 15, 2026 at 21:34 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 21:25:20 UTC | 4.1mb | 54 km W of Ollagüe, Chile -21.161°, -68.772° | 121.6 km | - | - | - | ✓ Reviewed | USGS → |
At 21:25 UTC on March 15, 2026, a magnitude 4.1 tremor occurred 54 km W of Ollagüe, Chile. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 21:07:48 UTC | 2.2ml | 72 km NE of Tonopah, Nevada 38.462°, -116.568° | 11.1 km | - | - | - | ✓ Reviewed | USGS → |
On March 15, 2026 at 21:07 UTC, a magnitude 2.2 earthquake struck 72 km NE of Tonopah, Nevada. It arrived roughly 15 hours after a larger magnitude 2.3 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. | ||||||||
2026-03-15 2026-03-15 20:34:19 UTC | 2.3ml | 73 km ENE of Port Alsworth, Alaska 60.497°, -153.128° | 146.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 73 km ENE of Port Alsworth, Alaska on March 15, 2026, with origin time 20:34 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 20:25:17 UTC | 4.3mb | 27 km NW of Yawatahama, Japan 33.628°, 132.212° | 68.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 27 km NW of Yawatahama, Japan on March 15, 2026 at 20:25 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 20:20:12 UTC | 3.5ml | 53 km S of Whites City, New Mexico 31.692°, -104.401° | 4.8 km | 1 | IV | - | ✓ Reviewed | USGS → |
March 15, 2026 brought a magnitude 3.5 earthquake 53 km S of Whites City, New Mexico, logged at 20:20 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 20:10:58 UTC | 4.2mb | Chagos Archipelago region -6.747°, 72.178° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake in the Chagos Archipelago region with origin time 20:10 UTC on March 15, 2026. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 19:47:03 UTC | 2.3ml | 57 km SSW of Adak, Alaska 51.419°, -177.022° | 49.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 57 km SSW of Adak, Alaska came in on March 15, 2026 at 19:47 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 19:33:55 UTC | 2.3ml | 34 km WNW of Clam Gulch, Alaska 60.363°, -151.958° | 77.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 34 km WNW of Clam Gulch, Alaska on March 15, 2026 at 19:33 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 19:26:57 UTC | 4.4mb | 60 km SW of Fereydūnshahr, Iran 32.506°, 49.729° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:26 UTC on March 15, 2026, a magnitude 4.4 tremor occurred 60 km SW of Fereydūnshahr, Iran. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 18:56:54 UTC | 4.9mb | 84 km SSW of Honchō, Japan 41.398°, 142.622° | 41.4 km | 1 | - | - | ✓ Reviewed | USGS → |
On March 15, 2026, worldwide seismic activity registered a magnitude 4.9 earthquake 84 km SSW of Honchō, Japan at 18:56 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 18:55:01 UTC | 2.0ml | 61 km N of Petersville, Alaska 63.046°, -150.773° | 115.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 61 km N of Petersville, Alaska with origin time 18:55 UTC on March 15, 2026. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 18:39:14 UTC | 4.7mb | 28 km SE of Nichinan, Japan 31.403°, 131.553° | 49.1 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place 28 km SE of Nichinan, Japan on March 15, 2026 at 18:39 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 18:31:38 UTC | 4.3mb | 46 km SE of Tena, Ecuador -1.306°, -77.534° | 222.5 km | - | - | - | ✓ Reviewed | USGS → |
March 15, 2026 brought a magnitude 4.3 earthquake 46 km SE of Tena, Ecuador, logged at 18:31 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-15 2026-03-15 18:19:26 UTC | 2.6ml | 95 km ESE of Ugashik, Alaska 57.190°, -155.923° | 64.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 95 km ESE of Ugashik, Alaska at 18:19 UTC on March 15, 2026. 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 March 15, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.