Earthquakes on September 29, 2026
171
EARTHQUAKES on September 29, 2026
24-hour UTC period · USGS data
LARGEST: M5.5 — southern Mid-Atlantic Ridge
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
19
M3.0–3.9
5
M2.0–2.9
31
M1.0–1.9
112
Activity Summary
171
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.5
southern Mid-Atlantic Ridge
13:06 UTC · 10.0 km deep
5.4
99 km SSE of Pangai, Tonga
12:40 UTC · 10.0 km deep
Felt by 1
5.3
76 km NE of Tadine, New Caledonia
03:23 UTC · 10.0 km deep
Felt by 1
5.0
77 km ENE of Tadine, New Caledonia
10:42 UTC · 10.0 km deep
4.9
61 km NW of Pante Makasar, Timor Leste
14:14 UTC · 153.0 km deep
4.8
South Sandwich Islands region
15:17 UTC · 114.2 km deep
4.8
98 km SW of Port-Vila, Vanuatu
11:27 UTC · 10.0 km deep
4.8
South Sandwich Islands region
06:38 UTC · 35.0 km deep
Earthquake Map — September 29, 2026
All Earthquakes — September 29, 2026
Showing 30 of 59 (filtered from 171)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
3 days ago 2026-09-29 23:39:46 UTC | 2.5md | 12 km NNE of San Lucas, CA 36.236°, -120.978° | 4.8 km | - | - | - | Auto | USGS → |
On September 29, 2026, worldwide seismic activity registered a magnitude 2.5 earthquake 12 km NNE of San Lucas, CA at 23:39 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. | ||||||||
3 days ago 2026-09-29 22:59:28 UTC | 2.2ml | 31 km WSW of Ivanof Bay, Alaska 55.792°, -159.943° | 5.0 km | - | - | - | Auto | USGS → |
A magnitude 2.2 earthquake was recorded 31 km WSW of Ivanof Bay, Alaska on September 29, 2026 at 22:59 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-09-29 22:54:25 UTC | 2.0ml | 39 km ENE of Ensenada, B.C., MX 31.940°, -116.219° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 39 km ENE of Ensenada, B.C., MX with origin time 22:54 UTC on September 29, 2026. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-09-29 21:50:29 UTC | 4.5mb | 15 km SW of San Antonio, Colombia 3.831°, -75.591° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 29, 2026, worldwide seismic activity registered a magnitude 4.5 earthquake 15 km SW of San Antonio, Colombia at 21:50 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-09-29 21:47:04 UTC | 2.2md | 8 km W of Cotati, CA 38.323°, -122.801° | 4.3 km | - | - | - | Auto | USGS → |
September 29, 2026 brought a magnitude 2.2 earthquake 8 km W of Cotati, CA, logged at 21:47 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-09-29 21:05:56 UTC | 4.2ml | 6 km WNW of Wauna, Washington 47.400°, -122.722° | 27.9 km | 9,536 | III | green | ✓ Reviewed | USGS → |
On September 29, 2026 at 21:05 UTC, a magnitude 4.2 earthquake struck 6 km WNW of Wauna, Washington. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
3 days ago 2026-09-29 20:45:50 UTC | 4.7mb | 49 km N of Dicabisagan, Philippines 17.527°, 122.414° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On September 29, 2026 at 20:45 UTC, a magnitude 4.7 earthquake struck 49 km N of Dicabisagan, Philippines. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 20:11:38 UTC | 2.3ml | 11 km ESE of Pearsall, Texas 28.854°, -98.986° | 8.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 11 km ESE of Pearsall, Texas on September 29, 2026, with origin time 20:11 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 20:11:07 UTC | 2.1md | 29 km SW of Richland, Oregon 44.599°, -117.459° | -1.1 km | - | - | - | ✓ Reviewed | USGS → |
On September 29, 2026, worldwide seismic activity registered a magnitude 2.1 earthquake 29 km SW of Richland, Oregon at 20:11 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 19:22:22 UTC | 2.2md | 3 km ENE of Lluveras, Puerto Rico 18.052°, -66.877° | 6.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 3 km ENE of Lluveras, Puerto Rico with origin time 19:22 UTC on September 29, 2026. It arrived roughly 8 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 18:47:28 UTC | 2.0md | 7 km WSW of Calistoga, CA 38.554°, -122.660° | 0.4 km | 2 | - | - | Auto | USGS → |
On September 29, 2026, worldwide seismic activity registered a magnitude 2.0 earthquake 7 km WSW of Calistoga, CA at 18:47 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. | ||||||||
4 days ago 2026-09-29 18:27:15 UTC | 2.1ml | 24 km SSW of Westbrook, Texas 32.141°, -101.086° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 24 km SSW of Westbrook, Texas at 18:27 UTC on September 29, 2026. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 18:21:49 UTC | 4.1mb | 92 km NE of San Pedro de Atacama, Chile -22.309°, -67.582° | 178.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 92 km NE of San Pedro de Atacama, Chile on September 29, 2026 at 18:21 UTC. This is the deepest earthquake in the current dataset — an intermediate depth event. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 18:15:21 UTC | 2.1ml | 20 km W of Cohoe, Alaska 60.374°, -151.677° | 70.6 km | 1 | - | - | Auto | USGS → |
This magnitude 2.1 event was detected 20 km W of Cohoe, Alaska on September 29, 2026, with origin time 18:15 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 16:28:53 UTC | 2.0ml | 59 km S of Whites City, New Mexico 31.648°, -104.488° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
At 16:28 UTC on September 29, 2026, a magnitude 2.0 tremor occurred 59 km S of Whites City, New Mexico. It arrived roughly 13 hours after a larger magnitude 2.1 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. | ||||||||
4 days ago 2026-09-29 16:13:02 UTC | 4.7mb | 50 km N of Fangale’ounga, Tonga -19.297°, -174.254° | 56.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 50 km N of Fangale’ounga, Tonga on September 29, 2026 at 16:13 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 16:06:37 UTC | 2.6md | 6 km W of Yountville, CA 38.399°, -122.424° | 8.3 km | 51 | - | - | Auto | USGS → |
A magnitude 2.6 seismic event took place 6 km W of Yountville, CA on September 29, 2026 at 16:06 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 15:31:18 UTC | 4.6mb | West Chile Rise -40.937°, -91.415° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake near West Chile Rise with origin time 15:31 UTC on September 29, 2026. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 15:19:49 UTC | 2.1ml | 9 km WNW of Anza, CA 33.577°, -116.770° | 12.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 9 km WNW of Anza, CA on September 29, 2026 at 15:19 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 15:17:18 UTC | 4.8mb | South Sandwich Islands region -58.747°, -25.955° | 114.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake in the South Sandwich Islands region at 15:17 UTC on September 29, 2026. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 14:45:11 UTC | 2.1ml | 63 km SW of Skwentna, Alaska 61.593°, -152.264° | 132.9 km | 1 | - | - | Auto | USGS → |
Reports of a magnitude 2.1 earthquake 63 km SW of Skwentna, Alaska came in on September 29, 2026 at 14:45 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 14:40:28 UTC | 4.4mb | 192 km ESE of Mil’kovo, Russia 54.078°, 161.387° | 54.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake 192 km ESE of Mil’kovo, Russia came in on September 29, 2026 at 14:40 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 14:36:20 UTC | 2.0ml | 3 km NW of Petersville, Alaska 62.513°, -150.814° | 80.7 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.0 earthquake 3 km NW of Petersville, Alaska at 14:36 UTC on September 29, 2026. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 14:14:05 UTC | 4.9mb | 61 km NW of Pante Makasar, Timor Leste -8.832°, 123.968° | 153.0 km | - | - | - | ✓ Reviewed | USGS → |
At 14:14 UTC on September 29, 2026, a magnitude 4.9 tremor occurred 61 km NW of Pante Makasar, Timor Leste. The event was offshore. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 14:07:43 UTC | 2.0ml | 43 km NNW of Valdez, Alaska 61.505°, -146.597° | 2.8 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 43 km NNW of Valdez, Alaska on September 29, 2026, with origin time 14:07 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. | ||||||||
4 days ago 2026-09-29 13:06:09 UTC | 5.5mww | southern Mid-Atlantic Ridge -35.276°, -16.077° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
On September 29, 2026 at 13:06 UTC, a magnitude 5.5 earthquake struck near southern Mid-Atlantic Ridge. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on September 29, 2026. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 12:40:35 UTC | 5.4mb | 99 km SSE of Pangai, Tonga -20.677°, -174.081° | 10.0 km | 1 | III | green | ✓ Reviewed | USGS → |
A magnitude 5.4 earthquake was recorded 99 km SSE of Pangai, Tonga on September 29, 2026 at 12:40 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 12:18:44 UTC | 2.5md | 2 km SSW of Round Valley, CA 37.398°, -118.605° | 8.6 km | - | - | - | Auto | USGS → |
On September 29, 2026 at 12:18 UTC, a magnitude 2.5 earthquake struck 2 km SSW of Round Valley, CA. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 11:36:39 UTC | 4.8mw | 97 km W of Petrolia, CA 40.422°, -125.418° | 10.0 km | 20 | II | green | ✓ Reviewed | USGS → |
September 29, 2026 brought a magnitude 4.8 earthquake 97 km W of Petrolia, CA, logged at 11:36 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
4 days ago 2026-09-29 11:27:48 UTC | 4.8mb | 98 km SW of Port-Vila, Vanuatu -18.231°, 167.545° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 98 km SW of Port-Vila, Vanuatu on September 29, 2026, with origin time 11:27 UTC. The event was offshore. See the M4.8 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 September 29, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.