Earthquakes on August 30, 2023
275
EARTHQUAKES on August 30, 2023
24-hour UTC period · USGS data
LARGEST: M5.3 — 51 km N of La Serena, Chile
43 km deep · 5 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
31
M3.0–3.9
11
M2.0–2.9
61
M1.0–1.9
165
Activity Summary
275
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Significant Earthquakes (M4.5+)
5.3
51 km N of La Serena, Chile
14:17 UTC · 43.1 km deep
Felt by 5
5.3
107 km ENE of Port-Olry, Vanuatu
13:55 UTC · 10.0 km deep
5.1
Alaska Peninsula
18:59 UTC · 46.6 km deep
Felt by 5
5.1
248 km ESE of Tadine, New Caledonia
13:54 UTC · 10.0 km deep
5.1
southern Mid-Atlantic Ridge
07:39 UTC · 10.0 km deep
5.0
146 km W of Lata, Solomon Islands
21:20 UTC · 10.0 km deep
5.0
160 km WSW of Bandar Lampung, Indonesia
02:17 UTC · 48.1 km deep
Felt by 1
4.8
102 km SSW of ‘Ohonua, Tonga
12:11 UTC · 41.2 km deep
Earthquake Map — August 30, 2023
All Earthquakes — August 30, 2023
Showing 30 of 110 (filtered from 275)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-08-30 2023-08-30 23:52:16 UTC | 3.9md | 141 km N of Suárez, Puerto Rico 19.697°, -65.702° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.9 seismic event took place 141 km N of Suárez, Puerto Rico on August 30, 2023 at 23:52 UTC. Coming 5 hours after a magnitude 4.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 23:48:19 UTC | 2.2ml | 9 km SSW of Volcano, Hawaii 19.371°, -155.283° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 9 km SSW of Volcano, Hawaii on August 30, 2023, with origin time 23:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 7 hours earlier. 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. | ||||||||
2023-08-30 2023-08-30 23:32:03 UTC | 4.0mb | 289 km WNW of Houma, Tonga -19.830°, -177.681° | 539.8 km | - | - | - | ✓ Reviewed | USGS → |
At 23:32 UTC on August 30, 2023, a magnitude 4.0 tremor occurred 289 km WNW of Houma, Tonga. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 23:23:43 UTC | 2.2ml | 48 km WSW of False Pass, Alaska 54.762°, -164.145° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 48 km WSW of False Pass, Alaska on August 30, 2023 at 23:23 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. | ||||||||
2023-08-30 2023-08-30 23:20:26 UTC | 4.2mb | Xinjiang-Xizang border region 35.941°, 81.523° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.2 event was detected in the Xinjiang-Xizang border region on August 30, 2023, with origin time 23:20 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 23:13:31 UTC | 3.5ml | Fox Islands, Aleutian Islands, Alaska 52.497°, -170.046° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.5 earthquake was recorded near Fox Islands, Aleutian Islands, Alaska on August 30, 2023 at 23:13 UTC. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 23:11:56 UTC | 4.4mb | 40 km NNW of Yigo Village, Guam 13.877°, 144.757° | 155.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 40 km NNW of Yigo Village, Guam at 23:11 UTC on August 30, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 23:03:14 UTC | 4.3mb | 56 km SE of Nishinoomote, Japan 30.328°, 131.357° | 30.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 30, 2023 at 23:03 UTC, a magnitude 4.3 earthquake struck 56 km SE of Nishinoomote, Japan. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 22:50:50 UTC | 2.9ml | 65 km SW of Kaktovik, Alaska 69.646°, -144.603° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
August 30, 2023 brought a magnitude 2.9 earthquake 65 km SW of Kaktovik, Alaska, logged at 22:50 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 22:40:49 UTC | 2.2ml | 128 km SSE of Ugashik, Alaska 56.526°, -156.306° | 39.4 km | - | - | - | ✓ Reviewed | USGS → |
August 30, 2023 brought a magnitude 2.2 earthquake 128 km SSE of Ugashik, Alaska, logged at 22:40 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 22:32:41 UTC | 2.2ml | 7 km NW of Delta, B.C., MX 32.403°, -115.239° | 11.8 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 7 km NW of Delta, B.C., MX at 22:32 UTC on August 30, 2023. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 22:19:07 UTC | 2.2md | 2 km SW of Fuig, Puerto Rico 17.973°, -66.934° | 16.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:19 UTC on August 30, 2023, a magnitude 2.2 tremor occurred 2 km SW of Fuig, Puerto Rico. Coming 14 hours after a magnitude 2.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 22:18:42 UTC | 2.3ml | 58 km NW of Toyah, Texas 31.633°, -104.286° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 58 km NW of Toyah, Texas with origin time 22:18 UTC on August 30, 2023. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:44:06 UTC | 2.0ml | 13 km NNW of Snyder, Texas 32.836°, -100.948° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 30, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 13 km NNW of Snyder, Texas at 21:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.1 earthquake that occurred about 7 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:27:23 UTC | 2.9ml | 156 km ESE of McCarthy, Alaska 61.130°, -140.064° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 30, 2023 at 21:27 UTC, a magnitude 2.9 earthquake struck 156 km ESE of McCarthy, Alaska. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:24:01 UTC | 2.6md | 2 km WNW of Bayamon, Puerto Rico 18.189°, -66.138° | 32.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 2 km WNW of Bayamon, Puerto Rico on August 30, 2023 at 21:24 UTC. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:20:20 UTC | 5.0mb | 146 km W of Lata, Solomon Islands -10.834°, 164.459° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.0 earthquake 146 km W of Lata, Solomon Islands at 21:20 UTC on August 30, 2023. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:17:18 UTC | 4.3mwr | 83 km E of Minami-S?ma, Japan 37.733°, 141.921° | 49.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 83 km E of Minami-S?ma, Japan on August 30, 2023 at 21:17 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 21:10:16 UTC | 4.6mb | Kermadec Islands, New Zealand -30.177°, -178.321° | 79.8 km | - | - | - | ✓ Reviewed | USGS → |
August 30, 2023 brought a magnitude 4.6 earthquake near Kermadec Islands, New Zealand, logged at 21:10 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:59:35 UTC | 2.0ml | 60 km SE of Cantwell, Alaska 63.037°, -148.036° | 67.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:59 UTC on August 30, 2023, a magnitude 2.0 tremor occurred 60 km SE of Cantwell, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:35:42 UTC | 2.5ml | 238 km SSE of Cordova, Alaska 58.659°, -143.744° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 238 km SSE of Cordova, Alaska with origin time 20:35 UTC on August 30, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:27:53 UTC | 4.1mb | 74 km SSW of Sand Point, Alaska 54.756°, -161.071° | 55.7 km | - | I | - | ✓ Reviewed | USGS → |
On August 30, 2023 at 20:27 UTC, a magnitude 4.1 earthquake struck 74 km SSW of Sand Point, Alaska. It arrived roughly 1 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:26:54 UTC | 4.4mb | 15 km NNE of Petatlán, Mexico 17.658°, -101.201° | 42.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 15 km NNE of Petatlán, Mexico on August 30, 2023, with origin time 20:26 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:22:07 UTC | 2.2md | 6 km WNW of Cobb, CA 38.837°, -122.791° | 2.1 km | - | - | - | ✓ Reviewed | USGS → |
At 20:22 UTC on August 30, 2023, a magnitude 2.2 tremor occurred 6 km WNW of Cobb, CA. It arrived roughly 1 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. | ||||||||
2023-08-30 2023-08-30 20:21:53 UTC | 2.4md | 6 km WNW of Cobb, CA 38.834°, -122.792° | 2.3 km | - | - | - | ✓ Reviewed | USGS → |
On August 30, 2023 at 20:21 UTC, a magnitude 2.4 earthquake struck 6 km WNW of Cobb, CA. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 20:11:39 UTC | 2.8mlv | 34 km SW of Coyanosa, Texas 31.015°, -103.314° | 4.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 34 km SW of Coyanosa, Texas on August 30, 2023, with origin time 20:11 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 19:58:58 UTC | 2.1ml | 37 km E of Port Alsworth, Alaska 60.178°, -153.645° | 177.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 37 km E of Port Alsworth, Alaska on August 30, 2023 at 19:58 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 19:43:03 UTC | 2.1ml | 66 km NW of Arctic Village, Alaska 68.626°, -146.443° | 2.9 km | - | - | - | ✓ Reviewed | USGS → |
August 30, 2023 brought a magnitude 2.1 earthquake 66 km NW of Arctic Village, Alaska, logged at 19:43 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. | ||||||||
2023-08-30 2023-08-30 19:24:50 UTC | 3.5mb | 8 km SSE of Randfontein, South Africa -26.253°, 27.742° | 5.0 km | 21 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.5 earthquake 8 km SSE of Randfontein, South Africa with origin time 19:24 UTC on August 30, 2023. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-08-30 2023-08-30 19:04:22 UTC | 2.1ml | 81 km ESE of King Cove, Alaska 54.709°, -161.197° | 18.6 km | - | - | - | ✓ Reviewed | USGS → |
On August 30, 2023 at 19:04 UTC, a magnitude 2.1 earthquake struck 81 km ESE of King Cove, Alaska. It arrived roughly 1 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. 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 August 30, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.