Earthquakes on September 18, 2024
288
EARTHQUAKES on September 18, 2024
24-hour UTC period · USGS data
LARGEST: M5.7 — Kermadec Islands region
17 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
32
M3.0–3.9
14
M2.0–2.9
50
M1.0–1.9
187
Activity Summary
288
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.7
Kermadec Islands region
11:53 UTC · 17.0 km deep
5.3
90 km SSE of Tôlanaro, Madagascar
00:25 UTC · 10.0 km deep
Felt by 6
5.0
Kermadec Islands region
11:55 UTC · 10.0 km deep
5.0
south of Panama
07:52 UTC · 10.0 km deep
5.0
15 km ESE of Banjar, Indonesia
02:41 UTC · 10.0 km deep
Felt by 9
4.9
29 km E of Hefei, China
12:08 UTC · 10.0 km deep
Felt by 35
4.7
44 km E of Nemuro, Japan
20:45 UTC · 82.6 km deep
4.6
170 km SW of Merizo Village, Guam
21:57 UTC · 10.0 km deep
Earthquake Map — September 18, 2024
All Earthquakes — September 18, 2024
Showing 30 of 101 (filtered from 288)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2024-09-18 2024-09-18 23:45:55 UTC | 3.7mb | 106 km S of Atka, Alaska 51.238°, -174.080° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
September 18, 2024 brought a magnitude 3.7 earthquake 106 km S of Atka, Alaska, logged at 23:45 UTC. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 23:33:18 UTC | 2.1ml | 182 km WSW of Adak, Alaska 51.359°, -179.143° | 21.4 km | - | - | - | ✓ Reviewed | USGS → |
At 23:33 UTC on September 18, 2024, a magnitude 2.1 tremor occurred 182 km WSW of Adak, Alaska. It arrived roughly 5 hours after a larger magnitude 2.2 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. | ||||||||
2024-09-18 2024-09-18 23:06:31 UTC | 2.5ml | 68 km SE of King Cove, Alaska 54.656°, -161.524° | 73.3 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2024 at 23:06 UTC, a magnitude 2.5 earthquake struck 68 km SE of King Cove, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 23:04:07 UTC | 4.1mb | 83 km SW of Yonakuni, Japan 23.909°, 122.453° | 20.4 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2024 at 23:04 UTC, a magnitude 4.1 earthquake struck 83 km SW of Yonakuni, Japan. It arrived roughly 8 hours after a larger magnitude 4.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 22:41:38 UTC | 4.0mwr | 19 km WSW of Unalakleet, Alaska 63.821°, -161.157° | 10.9 km | 14 | III | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 19 km WSW of Unalakleet, Alaska at 22:41 UTC on September 18, 2024. A tsunami evaluation was automatically initiated given the magnitude and location. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 22:39:28 UTC | 2.7ml | 67 km SE of Adak, Alaska 51.441°, -175.944° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 67 km SE of Adak, Alaska with origin time 22:39 UTC on September 18, 2024. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 22:07:53 UTC | 2.0ml | 60 km ESE of Akutan, Alaska 53.985°, -164.885° | 78.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 60 km ESE of Akutan, Alaska came in on September 18, 2024 at 22:07 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 21:57:23 UTC | 4.6mb | 170 km SW of Merizo Village, Guam 12.065°, 143.690° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake 170 km SW of Merizo Village, Guam came in on September 18, 2024 at 21:57 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 21:55:15 UTC | 2.2ml | 10 km SSW of Fern Forest, Hawaii 19.370°, -155.163° | 2.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 10 km SSW of Fern Forest, Hawaii at 21:55 UTC on September 18, 2024. It arrived roughly 15 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. | ||||||||
2024-09-18 2024-09-18 21:50:42 UTC | 4.4mb | 213 km NE of Kuril’sk, Russia 46.424°, 150.029° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 213 km NE of Kuril’sk, Russia on September 18, 2024 at 21:50 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 21:47:34 UTC | 2.5ml | 238 km WSW of Adak, Alaska 51.070°, -179.822° | 22.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 238 km WSW of Adak, Alaska on September 18, 2024 at 21:47 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 21:33:31 UTC | 4.5mb | 52 km S of Urakawa, Japan 41.692°, 142.677° | 54.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.5 earthquake was recorded 52 km S of Urakawa, Japan on September 18, 2024 at 21:33 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:47:16 UTC | 4.0mb | 253 km WNW of Houma, Tonga -20.594°, -177.661° | 480.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.0 event was detected 253 km WNW of Houma, Tonga on September 18, 2024, with origin time 20:47 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:45:50 UTC | 4.7mb | 44 km E of Nemuro, Japan 43.275°, 146.120° | 82.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 44 km E of Nemuro, Japan on September 18, 2024, with origin time 20:45 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:29:30 UTC | 4.5mb | southeast of the Loyalty Islands -22.738°, 171.568° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake southeast of the Loyalty Islands with origin time 20:29 UTC on September 18, 2024. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:24:57 UTC | 2.1ml | 59 km NNW of Yakutat, Alaska 60.033°, -140.150° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 59 km NNW of Yakutat, Alaska at 20:24 UTC on September 18, 2024. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:23:37 UTC | 4.2mb | 17 km N of Khorugh, Tajikistan 37.647°, 71.582° | 33.3 km | - | - | - | ✓ Reviewed | USGS → |
At 20:23 UTC on September 18, 2024, a magnitude 4.2 tremor occurred 17 km N of Khorugh, Tajikistan. It arrived roughly 1 hours after a larger magnitude 4.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:17:09 UTC | 2.3ml | 15 km SW of Thatcher, Utah 41.597°, -112.421° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
On September 18, 2024 at 20:17 UTC, a magnitude 2.3 earthquake struck 15 km SW of Thatcher, Utah. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:15:51 UTC | 2.4ml | 15 km SW of Thatcher, Utah 41.593°, -112.424° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 15 km SW of Thatcher, Utah came in on September 18, 2024 at 20:15 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 20:14:19 UTC | 4.3mwr | 21 km NNE of Khorugh, Tajikistan 37.671°, 71.638° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake 21 km NNE of Khorugh, Tajikistan with origin time 20:14 UTC on September 18, 2024. This event falls inside the aftershock decay of a nearby magnitude 4.4 earthquake that occurred about 1 hours earlier. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 19:52:04 UTC | 4.4mwr | 18 km NNE of Khorugh, Tajikistan 37.628°, 71.661° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
September 18, 2024 brought a magnitude 4.4 earthquake 18 km NNE of Khorugh, Tajikistan, logged at 19:52 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 19:35:12 UTC | 2.4ml | 21 km W of Salamatof, Alaska 60.599°, -151.707° | 72.7 km | - | - | - | ✓ Reviewed | USGS → |
At 19:35 UTC on September 18, 2024, a magnitude 2.4 tremor occurred 21 km W of Salamatof, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 19:32:33 UTC | 2.3ml | 95 km NW of Yakutat, Alaska 60.244°, -140.735° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 earthquake was recorded 95 km NW of Yakutat, Alaska on September 18, 2024 at 19:32 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. | ||||||||
2024-09-18 2024-09-18 19:21:45 UTC | 2.6ml | 150 km WSW of Adak, Alaska 51.626°, -178.782° | 18.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 150 km WSW of Adak, Alaska at 19:21 UTC on September 18, 2024. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 19:05:36 UTC | 3.2ml | 67 km SW of Nikolski, Alaska 52.449°, -169.448° | 48.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.2 earthquake 67 km SW of Nikolski, Alaska with origin time 19:05 UTC on September 18, 2024. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 19:02:18 UTC | 2.2ml | 200 km WSW of Adak, Alaska 51.285°, -179.369° | 26.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 200 km WSW of Adak, Alaska on September 18, 2024, with origin time 19:02 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 18:08:47 UTC | 2.2ml | 291 km WSW of Adak, Alaska 51.079°, 179.367° | 16.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 291 km WSW of Adak, Alaska came in on September 18, 2024 at 18:08 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 17:25:31 UTC | 2.1ml | 243 km WSW of Adak, Alaska 51.157°, -179.955° | 13.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 243 km WSW of Adak, Alaska on September 18, 2024, with origin time 17:25 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 17:20:01 UTC | 2.1ml | 33 km W of Cohoe, Alaska 60.403°, -151.910° | 83.2 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 33 km W of Cohoe, Alaska came in on September 18, 2024 at 17:20 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2024-09-18 2024-09-18 17:16:37 UTC | 2.0md | 10 km E of Pāhala, Hawaii 19.209°, -155.378° | 29.2 km | - | - | - | Auto | USGS → |
This magnitude 2.0 event was detected 10 km E of Pāhala, Hawaii on September 18, 2024, with origin time 17:16 UTC. It arrived roughly 1 hours after a larger magnitude 2.2 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. | ||||||||
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 18, 2024. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.