Earthquakes on March 17, 2026
273
EARTHQUAKES on March 17, 2026
24-hour UTC period · USGS data
LARGEST: M5.8 — 51 km SSW of Maisí, Cuba
13 km deep · 15 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
45
M3.0–3.9
22
M2.0–2.9
60
M1.0–1.9
139
Activity Summary
273
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
51 km SSW of Maisí, Cuba
04:28 UTC · 12.7 km deep
Felt by 15
5.3
229 km ESE of Attu Station, Alaska
16:21 UTC · 10.0 km deep
5.1
south of the Kermadec Islands
14:18 UTC · 10.0 km deep
5.0
Ascension Island region
19:53 UTC · 10.0 km deep
5.0
105 km E of Fangale’ounga, Tonga
15:16 UTC · 10.0 km deep
5.0
Kuril Islands
14:32 UTC · 51.5 km deep
5.0
Kuril Islands
03:24 UTC · 43.2 km deep
4.9
19 km NNW of Port-Olry, Vanuatu
23:27 UTC · 85.7 km deep
Felt by 1
Earthquake Map — March 17, 2026
All Earthquakes — March 17, 2026
Showing 30 of 134 (filtered from 273)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-03-17 2026-03-17 23:39:20 UTC | 4.3mb | Izu Islands, Japan region 30.238°, 137.493° | 492.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place in the Izu Islands, Japan region on March 17, 2026 at 23:39 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:27:57 UTC | 4.9mb | 19 km NNW of Port-Olry, Vanuatu -14.882°, 166.995° | 85.7 km | 1 | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.9 earthquake 19 km NNW of Port-Olry, Vanuatu came in on March 17, 2026 at 23:27 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:24:54 UTC | 4.5mb | 69 km SSE of Fuengirola, Spain 35.934°, -4.452° | 81.7 km | 12 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 69 km SSE of Fuengirola, Spain on March 17, 2026, with origin time 23:24 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:15:58 UTC | 4.2mb | 178 km NE of Lospalos, Timor Leste -7.498°, 128.250° | 148.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.2 earthquake 178 km NE of Lospalos, Timor Leste with origin time 23:15 UTC on March 17, 2026. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:08:40 UTC | 3.0ml | 235 km ESE of Attu Station, Alaska 52.023°, 176.381° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
March 17, 2026 brought a magnitude 3.0 earthquake 235 km ESE of Attu Station, Alaska, logged at 23:08 UTC. It arrived roughly 3 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:07:28 UTC | 3.3ml | 233 km ESE of Attu Station, Alaska 51.762°, 176.109° | 20.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.3 earthquake 233 km ESE of Attu Station, Alaska came in on March 17, 2026 at 23:07 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 23:03:02 UTC | 2.3md | 7 km SSW of Yountville, CA 38.347°, -122.405° | 7.0 km | 12 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 7 km SSW of Yountville, CA on March 17, 2026, with origin time 23:03 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 22:46:44 UTC | 2.2ml | 133 km N of Yakutat, Alaska 60.738°, -139.949° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 133 km N of Yakutat, Alaska at 22:46 UTC on March 17, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 22:32:18 UTC | 4.3mb | 2 km N of Borbon, Philippines 10.859°, 124.028° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
March 17, 2026 brought a magnitude 4.3 earthquake 2 km N of Borbon, Philippines, logged at 22:32 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 22:24:42 UTC | 2.0ml | 110 km N of Yakutat, Alaska 60.531°, -139.957° | 7.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 110 km N of Yakutat, Alaska on March 17, 2026 at 22:24 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 21:55:23 UTC | 2.7ml | 21 km ESE of Naalehu, Hawaii 19.025°, -155.380° | 33.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place 21 km ESE of Naalehu, Hawaii on March 17, 2026 at 21:55 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 21:24:44 UTC | 4.3mb | 275 km SSE of Ambon, Indonesia -6.079°, 128.901° | 260.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 17, 2026 at 21:24 UTC, a magnitude 4.3 earthquake struck 275 km SSE of Ambon, Indonesia. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 21:13:32 UTC | 4.4mb | 77 km S of Kushiro, Japan 42.277°, 144.395° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
March 17, 2026 brought a magnitude 4.4 earthquake 77 km S of Kushiro, Japan, logged at 21:13 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:55:33 UTC | 4.3mb | 48 km WSW of Novyy Uoyan, Russia 55.958°, 111.011° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 48 km WSW of Novyy Uoyan, Russia on March 17, 2026 at 20:55 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:29:48 UTC | 2.0ml | 101 km E of McCarthy, Alaska 61.332°, -141.034° | 8.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 101 km E of McCarthy, Alaska with origin time 20:29 UTC on March 17, 2026. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:25:26 UTC | 4.7mb | 20 km S of Golfito, Costa Rica 8.419°, -83.103° | 10.0 km | 6 | - | - | ✓ Reviewed | USGS → |
On March 17, 2026 at 20:25 UTC, a magnitude 4.7 earthquake struck 20 km S of Golfito, Costa Rica. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:22:35 UTC | 2.3ml | 86 km SW of Nikolski, Alaska 52.433°, -169.832° | 12.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 86 km SW of Nikolski, Alaska came in on March 17, 2026 at 20:22 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 19 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:21:01 UTC | 3.1ml | 232 km ESE of Attu Station, Alaska 52.059°, 176.355° | 23.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 232 km ESE of Attu Station, Alaska with origin time 20:21 UTC on March 17, 2026. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 20:16:08 UTC | 2.0ml | 58 km S of Whites City, New Mexico 31.650°, -104.454° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
On March 17, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 58 km S of Whites City, New Mexico at 20:16 UTC. It arrived roughly 5 hours after a larger magnitude 2.4 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. | ||||||||
2026-03-17 2026-03-17 20:00:52 UTC | 3.0ml | 8 km NW of The Geysers, CA 38.829°, -122.814° | 2.3 km | 8 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 seismic event took place 8 km NW of The Geysers, CA on March 17, 2026 at 20:00 UTC. In the 72 hours after this event, the USGS recorded 19 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:54:48 UTC | 4.2mb | 15 km ENE of Nueva Concepción, Guatemala 14.235°, -91.157° | 82.9 km | - | - | - | ✓ Reviewed | USGS → |
On March 17, 2026, worldwide seismic activity registered a magnitude 4.2 earthquake 15 km ENE of Nueva Concepción, Guatemala at 19:54 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:53:57 UTC | 5.0mb | Ascension Island region -10.474°, -13.119° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On March 17, 2026, worldwide seismic activity registered a magnitude 5.0 earthquake in the Ascension Island region at 19:53 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:34:52 UTC | 2.3ml | 11 km WNW of Tyonek, Alaska 61.111°, -151.336° | 67.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 11 km WNW of Tyonek, Alaska on March 17, 2026 at 19:34 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:25:53 UTC | 2.3ml | 2 km WSW of Ruth, Nevada 39.270°, -115.016° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 2 km WSW of Ruth, Nevada on March 17, 2026 at 19:25 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:19:08 UTC | 4.7mb | Vanuatu region -13.530°, 172.102° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded in the Vanuatu region on March 17, 2026 at 19:19 UTC. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 19:05:10 UTC | 3.7mb | 196 km SW of Nikolski, Alaska 51.488°, -170.509° | 10.0 km | - | I | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.7 earthquake 196 km SW of Nikolski, Alaska with origin time 19:05 UTC on March 17, 2026. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 18:53:52 UTC | 2.0ml | 7 km NW of Kalifornsky, Alaska 60.464°, -151.395° | 62.5 km | - | - | - | ✓ Reviewed | USGS → |
At 18:53 UTC on March 17, 2026, a magnitude 2.0 tremor occurred 7 km NW of Kalifornsky, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 18:38:44 UTC | 3.1ml | 23 km E of Whittier, Alaska 60.800°, -148.251° | 17.4 km | 1 | - | - | ✓ Reviewed | USGS → |
On March 17, 2026, worldwide seismic activity registered a magnitude 3.1 earthquake 23 km E of Whittier, Alaska at 18:38 UTC. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 18:33:26 UTC | 4.5mb | 105 km NE of Cabodiongan, Philippines 13.445°, 125.600° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 105 km NE of Cabodiongan, Philippines came in on March 17, 2026 at 18:33 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-03-17 2026-03-17 18:25:43 UTC | 2.1ml | Rat Islands, Aleutian Islands, Alaska 51.781°, 178.615° | 96.3 km | - | - | - | ✓ Reviewed | USGS → |
At 18:25 UTC on March 17, 2026, a magnitude 2.1 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M2.1 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 17, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.