Earthquakes on July 29, 2023
256
EARTHQUAKES on July 29, 2023
24-hour UTC period · USGS data
LARGEST: M5.4 — South Sandwich Islands region
115 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
21
M3.0–3.9
16
M2.0–2.9
57
M1.0–1.9
160
Activity Summary
256
Total earthquakes
~250
Daily average
Normal
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.4
South Sandwich Islands region
06:57 UTC · 115.5 km deep
5.0
39 km SE of Tobelo, Indonesia
11:19 UTC · 73.1 km deep
Felt by 1
4.8
Pacific-Antarctic Ridge
03:24 UTC · 10.0 km deep
4.6
102 km SSE of Hihifo, Tonga
21:05 UTC · 49.6 km deep
4.6
235 km S of Burica, Panama
18:52 UTC · 10.0 km deep
4.6
Mauritius - Reunion region
17:52 UTC · 10.0 km deep
4.6
7 km SE of Shimotsuke, Japan
10:34 UTC · 84.3 km deep
Felt by 36
4.6
Pagan region, Northern Mariana Islands
00:27 UTC · 35.0 km deep
Earthquake Map — July 29, 2023
All Earthquakes — July 29, 2023
Showing 30 of 96 (filtered from 256)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-07-29 2023-07-29 23:56:51 UTC | 2.0ml | 103 km SSE of Perryville, Alaska 55.015°, -158.733° | 18.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 103 km SSE of Perryville, Alaska came in on July 29, 2023 at 23:56 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 23:40:11 UTC | 2.0ml | 46 km ESE of False Pass, Alaska 54.701°, -162.735° | 8.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 46 km ESE of False Pass, Alaska on July 29, 2023 at 23:40 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 23:21:53 UTC | 2.0ml | 136 km WNW of Arctic Village, Alaska 68.634°, -148.563° | 4.4 km | - | - | - | ✓ Reviewed | USGS → |
July 29, 2023 brought a magnitude 2.0 earthquake 136 km WNW of Arctic Village, Alaska, logged at 23:21 UTC. Coming 4 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
2023-07-29 2023-07-29 23:16:34 UTC | 3.3ml | 17 km SSE of Ackerly, Texas 32.378°, -101.650° | 8.7 km | 2 | - | - | ✓ Reviewed | USGS → |
July 29, 2023 brought a magnitude 3.3 earthquake 17 km SSE of Ackerly, Texas, logged at 23:16 UTC. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 23:00:32 UTC | 2.2md | 4 km NE of La Parguera, Puerto Rico 18.000°, -67.011° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 4 km NE of La Parguera, Puerto Rico at 23:00 UTC on July 29, 2023. It arrived roughly 6 hours after a larger magnitude 2.8 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. | ||||||||
2023-07-29 2023-07-29 22:59:35 UTC | 2.5md | 7 km E of Avenal, CA 36.011°, -120.054° | 4.1 km | 3 | - | - | ✓ Reviewed | USGS → |
At 22:59 UTC on July 29, 2023, a magnitude 2.5 tremor occurred 7 km E of Avenal, CA. 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. | ||||||||
2023-07-29 2023-07-29 22:29:32 UTC | 4.4mb | 84 km W of Minbu, Myanmar 20.146°, 94.067° | 43.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 84 km W of Minbu, Myanmar on July 29, 2023 at 22:29 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 22:26:11 UTC | 2.1ml | 19 km SSW of La Grande, Oregon 45.170°, -118.206° | 8.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 19 km SSW of La Grande, Oregon at 22:26 UTC on July 29, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 22:21:08 UTC | 3.7mb | 58 km SSW of Adak, Alaska 51.370°, -176.869° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.7 earthquake 58 km SSW of Adak, Alaska came in on July 29, 2023 at 22:21 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 21:37:07 UTC | 3.4ml | 88 km SSW of Unalaska, Alaska 53.153°, -167.100° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 seismic event took place 88 km SSW of Unalaska, Alaska on July 29, 2023 at 21:37 UTC. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 21:29:00 UTC | 3.1ml | British Columbia, Canada 49.668°, -114.801° | -2.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected near British Columbia, Canada on July 29, 2023, with origin time 21:29 UTC. This is the shallowest earthquake in the current dataset — a shallow crustal event. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 21:26:13 UTC | 2.2ml | 20 km ENE of King Salmon, Alaska 58.788°, -156.362° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 29, 2023 at 21:26 UTC, a magnitude 2.2 earthquake struck 20 km ENE of King Salmon, Alaska. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 21:05:00 UTC | 4.6mb | 102 km SSE of Hihifo, Tonga -16.761°, -173.320° | 49.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 29, 2023, worldwide seismic activity registered a magnitude 4.6 earthquake 102 km SSE of Hihifo, Tonga at 21:05 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 21:03:18 UTC | 3.1ml | 5 km ESE of Pāpa‘ikou, Hawaii 19.776°, -155.041° | 44.4 km | 5 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded 5 km ESE of Pāpa‘ikou, Hawaii on July 29, 2023 at 21:03 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 20:58:33 UTC | 4.4mb | 33 km NNW of Kazarman, Kyrgyzstan 41.685°, 73.871° | 3.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 33 km NNW of Kazarman, Kyrgyzstan with origin time 20:58 UTC on July 29, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 20:44:18 UTC | 4.0mb | 244 km W of Qamdo, China 30.785°, 94.652° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 29, 2023 brought a magnitude 4.0 earthquake 244 km W of Qamdo, China, logged at 20:44 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 20:43:58 UTC | 2.0ml | 26 km SSE of Nelson Lagoon, Alaska 55.776°, -161.050° | 150.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 29, 2023 at 20:43 UTC, a magnitude 2.0 earthquake struck 26 km SSE of Nelson Lagoon, Alaska. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 20:42:19 UTC | 2.9ml | Nevada 41.142°, -116.788° | 13.1 km | - | - | - | ✓ Reviewed | USGS → |
July 29, 2023 brought a magnitude 2.9 earthquake near Nevada, logged at 20:42 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 20:20:11 UTC | 2.3md | 2 km NNW of Indios, Puerto Rico 18.014°, -66.832° | 14.7 km | - | - | - | ✓ Reviewed | USGS → |
At 20:20 UTC on July 29, 2023, a magnitude 2.3 tremor occurred 2 km NNW of Indios, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 4 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 19:59:30 UTC | 2.5ml | 136 km WNW of Arctic Village, Alaska 68.631°, -148.561° | 5.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected 136 km WNW of Arctic Village, Alaska on July 29, 2023, with origin time 19:59 UTC. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 19:32:49 UTC | 4.0mwr | 136 km WNW of Arctic Village, Alaska 68.620°, -148.583° | 1.3 km | - | III | - | ✓ Reviewed | USGS → |
On July 29, 2023 at 19:32 UTC, a magnitude 4.0 earthquake struck 136 km WNW of Arctic Village, Alaska. In the 72 hours after this event, the USGS recorded 18 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 19:02:05 UTC | 2.0ml | south of Alaska 54.567°, -159.702° | 13.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded south of Alaska on July 29, 2023 at 19:02 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 9 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 18:58:21 UTC | 2.8ml | Alaska Peninsula 57.945°, -155.891° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 29, 2023, worldwide seismic activity registered a magnitude 2.8 earthquake near Alaska Peninsula at 18:58 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 18:52:21 UTC | 4.6mb | 235 km S of Burica, Panama 5.934°, -82.508° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:52 UTC on July 29, 2023, a magnitude 4.6 tremor occurred 235 km S of Burica, Panama. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 18:38:20 UTC | 2.2md | 7 km ENE of East Cleveland, Tennessee 35.174°, -84.782° | 16.5 km | - | - | - | ✓ Reviewed | USGS → |
At 18:38 UTC on July 29, 2023, a magnitude 2.2 tremor occurred 7 km ENE of East Cleveland, Tennessee. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 18:19:34 UTC | 4.1mb | Kepulauan Babar, Indonesia -7.312°, 129.440° | 111.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake near Kepulauan Babar, Indonesia came in on July 29, 2023 at 18:19 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 18:17:27 UTC | 2.9ml | 135 km W of Port Orford, Oregon 42.962°, -126.123° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 29, 2023 at 18:17 UTC, a magnitude 2.9 earthquake struck 135 km W of Port Orford, Oregon. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 17:52:13 UTC | 4.6mb | Mauritius - Reunion region -20.204°, 66.249° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.6 earthquake in the Mauritius - Reunion region at 17:52 UTC on July 29, 2023. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 17:34:24 UTC | 3.9mwr | 8 km ENE of Klana, Croatia 45.478°, 14.479° | 4.2 km | 8 | - | - | ✓ Reviewed | USGS → |
On July 29, 2023, worldwide seismic activity registered a magnitude 3.9 earthquake 8 km ENE of Klana, Croatia at 17:34 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-29 2023-07-29 17:18:27 UTC | 2.8ml | 150 km W of Port Orford, Oregon 42.917°, -126.327° | 16.7 km | - | - | - | ✓ Reviewed | USGS → |
At 17:18 UTC on July 29, 2023, a magnitude 2.8 tremor occurred 150 km W of Port Orford, Oregon. The event was offshore. See the M2.8 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 July 29, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.