Earthquakes on May 18, 2026
259
EARTHQUAKES on May 18, 2026
24-hour UTC period · USGS data
LARGEST: M5.4 — West Chile Rise
10 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
29
M3.0–3.9
14
M2.0–2.9
64
M1.0–1.9
147
Activity Summary
259
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.4
West Chile Rise
02:10 UTC · 10.0 km deep
5.3
Bouvet Island region
18:50 UTC · 10.0 km deep
5.2
41 km SSE of Syriam, Burma (Myanmar)
02:05 UTC · 10.0 km deep
Felt by 62
5.1
20 km NW of Liuzhou, China
13:44 UTC · 10.0 km deep
Felt by 13
5.1
Mid-Indian Ridge
07:34 UTC · 10.0 km deep
4.9
168 km E of Atka, Alaska
21:37 UTC · 10.0 km deep
4.9
Southwest Indian Ridge
02:32 UTC · 10.0 km deep
4.7
21 km SSW of La Tirana, Chile
08:48 UTC · 86.5 km deep
Felt by 16
Earthquake Map — May 18, 2026
All Earthquakes — May 18, 2026
Showing 30 of 112 (filtered from 259)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-05-18 2026-05-18 23:27:41 UTC | 3.2ml | 174 km ENE of Atka, Alaska 52.550°, -171.704° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 174 km ENE of Atka, Alaska on May 18, 2026 at 23:27 UTC. Coming 2 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 23:22:46 UTC | 2.1ml | 1 km WSW of Pāhala, Hawaii 19.199°, -155.494° | 33.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 1 km WSW of Pāhala, Hawaii at 23:22 UTC on May 18, 2026. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 23:19:35 UTC | 2.0ml | 7 km S of Princeton, Canada 49.387°, -120.502° | -0.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 7 km S of Princeton, Canada on May 18, 2026 at 23:19 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. | ||||||||
2026-05-18 2026-05-18 22:48:58 UTC | 2.0ml | 44 km NW of Toyah, Texas 31.620°, -104.095° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
May 18, 2026 brought a magnitude 2.0 earthquake 44 km NW of Toyah, Texas, logged at 22:48 UTC. It arrived roughly 3 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. | ||||||||
2026-05-18 2026-05-18 22:36:11 UTC | 4.3mb | 116 km SSE of Attu Station, Alaska 51.948°, 174.055° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
May 18, 2026 brought a magnitude 4.3 earthquake 116 km SSE of Attu Station, Alaska, logged at 22:36 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:45:09 UTC | 2.3ml | 13 km NNW of Atka, Alaska 52.303°, -174.279° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 13 km NNW of Atka, Alaska came in on May 18, 2026 at 21:45 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:37:20 UTC | 4.9mww | 168 km E of Atka, Alaska 52.487°, -171.770° | 10.0 km | - | III | green | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake 168 km E of Atka, Alaska at 21:37 UTC on May 18, 2026. 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 M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:26:21 UTC | 2.5ml | 101 km ESE of Akutan, Alaska 53.821°, -164.316° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded 101 km ESE of Akutan, Alaska on May 18, 2026 at 21:26 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:14:57 UTC | 4.4mb | 54 km E of Port-Olry, Vanuatu -15.047°, 167.580° | 125.2 km | - | - | - | ✓ Reviewed | USGS → |
On May 18, 2026, worldwide seismic activity registered a magnitude 4.4 earthquake 54 km E of Port-Olry, Vanuatu at 21:14 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:07:40 UTC | 3.7mb | 236 km ESE of Attu Station, Alaska 52.015°, 176.393° | 53.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.7 earthquake 236 km ESE of Attu Station, Alaska at 21:07 UTC on May 18, 2026. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 21:05:05 UTC | 3.7mb | 235 km ESE of Attu Station, Alaska 52.057°, 176.393° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.7 event was detected 235 km ESE of Attu Station, Alaska on May 18, 2026, with origin time 21:05 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 20:35:47 UTC | 2.2ml | 1 km W of Cabazon, CA 33.916°, -116.799° | 10.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 1 km W of Cabazon, CA with origin time 20:35 UTC on May 18, 2026. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 20:22:43 UTC | 3.0ml | 55 km SE of Atka, Alaska 51.822°, -173.658° | 3.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.0 earthquake 55 km SE of Atka, Alaska came in on May 18, 2026 at 20:22 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 20:20:36 UTC | 2.3ml | 57 km SSW of Ugashik, Alaska 57.016°, -157.656° | 1.7 km | - | - | - | ✓ Reviewed | USGS → |
On May 18, 2026 at 20:20 UTC, a magnitude 2.3 earthquake struck 57 km SSW of Ugashik, Alaska. 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. | ||||||||
2026-05-18 2026-05-18 19:51:41 UTC | 4.1mb | 93 km SE of Sinabang, Indonesia 1.874°, 96.964° | 27.1 km | - | - | - | ✓ Reviewed | USGS → |
May 18, 2026 brought a magnitude 4.1 earthquake 93 km SE of Sinabang, Indonesia, logged at 19:51 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 19:47:25 UTC | 2.2ml | 30 km NW of Toyah, Texas 31.528°, -104.003° | 7.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 30 km NW of Toyah, Texas on May 18, 2026 at 19:47 UTC. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 19:46:24 UTC | 2.8ml | 82 km SSW of Adak, Alaska 51.179°, -177.066° | 22.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 82 km SSW of Adak, Alaska on May 18, 2026 at 19:46 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 19:30:35 UTC | 3.6mb | 98 km SE of Attu Station, Alaska 52.141°, 174.055° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.6 earthquake 98 km SE of Attu Station, Alaska came in on May 18, 2026 at 19:30 UTC. The event was offshore. See the M3.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 19:09:22 UTC | 2.2ml | 66 km E of Chignik, Alaska 56.395°, -157.340° | 54.1 km | - | - | - | ✓ Reviewed | USGS → |
May 18, 2026 brought a magnitude 2.2 earthquake 66 km E of Chignik, Alaska, logged at 19:09 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 19:04:30 UTC | 2.8ml | 2 km ESE of Honaunau-Napoopoo, Hawaii 19.443°, -155.841° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
On May 18, 2026 at 19:04 UTC, a magnitude 2.8 earthquake struck 2 km ESE of Honaunau-Napoopoo, Hawaii. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 18:50:00 UTC | 5.3mb | Bouvet Island region -54.258°, -1.245° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.3 earthquake was recorded in the Bouvet Island region on May 18, 2026 at 18:50 UTC. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 18:32:20 UTC | 2.0ml | 52 km NW of Toyah, Texas 31.629°, -104.203° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
On May 18, 2026 at 18:32 UTC, a magnitude 2.0 earthquake struck 52 km NW of Toyah, Texas. This event falls inside the aftershock decay of a nearby magnitude 2.1 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 18:28:03 UTC | 2.4md | 4 km NNE of Ponce, Puerto Rico 18.048°, -66.599° | 17.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 4 km NNE of Ponce, Puerto Rico at 18:28 UTC on May 18, 2026. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 18:06:05 UTC | 4.4mb | 93 km ESE of Pondaguitan, Philippines 6.081°, 126.970° | 66.5 km | - | - | - | ✓ Reviewed | USGS → |
At 18:06 UTC on May 18, 2026, a magnitude 4.4 tremor occurred 93 km ESE of Pondaguitan, Philippines. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 18:02:51 UTC | 2.1ml | 1 km SSW of Bellflower, CA 33.870°, -118.125° | 9.6 km | 63 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 1 km SSW of Bellflower, CA on May 18, 2026 at 18:02 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 17:28:55 UTC | 2.3ml | 40 km SE of Goldfield, Nevada 37.435°, -116.936° | 11.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 40 km SE of Goldfield, Nevada on May 18, 2026, with origin time 17:28 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 17:07:20 UTC | 2.1ml | 16 km SSE of Silver Springs, Nevada 39.285°, -119.123° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:07 UTC on May 18, 2026, a magnitude 2.1 tremor occurred 16 km SSE of Silver Springs, Nevada. It arrived roughly 9 hours after a larger magnitude 2.6 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. | ||||||||
2026-05-18 2026-05-18 17:05:22 UTC | 2.3ml | 18 km SE of Silver Springs, Nevada 39.281°, -119.106° | 9.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 18 km SE of Silver Springs, Nevada at 17:05 UTC on May 18, 2026. It arrived roughly 9 hours after a larger magnitude 2.6 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 17:04:28 UTC | 4.6mb | 126 km E of Miyako, Japan 39.792°, 143.402° | 17.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 126 km E of Miyako, Japan on May 18, 2026 at 17:04 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-18 2026-05-18 16:45:52 UTC | 2.4ml | 6 km E of Big Lake, Alaska 61.522°, -149.833° | 33.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 6 km E of Big Lake, Alaska on May 18, 2026, with origin time 16:45 UTC. The event was offshore. See the M2.4 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 May 18, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.