Earthquakes on May 20, 2026
226
EARTHQUAKES on May 20, 2026
24-hour UTC period · USGS data
LARGEST: M6.6 — southern East Pacific Rise
10 km deep · 7 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
8
M4.0–4.9
28
M3.0–3.9
18
M2.0–2.9
63
M1.0–1.9
109
Activity Summary
226
Total earthquakes
~250
Daily average
Normal
Activity level
8
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.6
southern East Pacific Rise
17:43 UTC · 10.0 km deep
Felt by 7
5.9
11 km NNE of Wadomari, Japan
02:46 UTC · 42.0 km deep
Felt by 20
5.7
South Sandwich Islands region
23:00 UTC · 107.6 km deep
5.4
20 km NNW of Sincik, Turkey
06:00 UTC · 10.0 km deep
Felt by 7
5.2
49 km NE of Sape, Indonesia
10:28 UTC · 10.0 km deep
5.1
southern East Pacific Rise
18:36 UTC · 10.0 km deep
5.1
145 km WNW of Lautoka, Fiji
09:40 UTC · 10.0 km deep
5.0
southeast of Easter Island
02:46 UTC · 10.0 km deep
Earthquake Map — May 20, 2026
All Earthquakes — May 20, 2026
Showing 30 of 117 (filtered from 226)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2026-05-20 2026-05-20 23:45:40 UTC | 2.6ml | 19 km E of Naalehu, Hawaii 19.045°, -155.401° | 34.5 km | - | - | - | ✓ Reviewed | USGS → |
On May 20, 2026 at 23:45 UTC, a magnitude 2.6 earthquake struck 19 km E of Naalehu, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 6 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:41:46 UTC | 4.1mb | 18 km WNW of Agía Galíni, Greece 35.180°, 24.514° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake 18 km WNW of Agía Galíni, Greece at 23:41 UTC on May 20, 2026. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:25:36 UTC | 2.2ml | 45 km N of Searles Valley, CA 36.175°, -117.386° | 2.4 km | - | - | - | ✓ Reviewed | USGS → |
On May 20, 2026 at 23:25 UTC, a magnitude 2.2 earthquake struck 45 km N of Searles Valley, CA. 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. | ||||||||
2026-05-20 2026-05-20 23:21:35 UTC | 2.6ml | 11 km NE of Hildale, Utah 37.067°, -112.859° | 8.7 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 11 km NE of Hildale, Utah on May 20, 2026 at 23:21 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:20:02 UTC | 2.4ml | 123 km ESE of Chignik, Alaska 55.697°, -156.736° | 266.4 km | - | - | - | Auto | USGS → |
May 20, 2026 brought a magnitude 2.4 earthquake 123 km ESE of Chignik, Alaska, logged at 23:20 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:12:56 UTC | 4.9mb | 268 km WSW of Tual, Indonesia -6.156°, 130.387° | 122.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 seismic event took place 268 km WSW of Tual, Indonesia on May 20, 2026 at 23:12 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:07:21 UTC | 2.1ml | 139 km S of McCarthy, Alaska 60.181°, -142.898° | 6.0 km | - | - | - | ✓ Reviewed | USGS → |
On May 20, 2026 at 23:07 UTC, a magnitude 2.1 earthquake struck 139 km S of McCarthy, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:00:57 UTC | 5.7mww | South Sandwich Islands region -56.119°, -27.908° | 107.6 km | - | III | green | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.7 earthquake in the South Sandwich Islands region with origin time 23:00 UTC on May 20, 2026. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 23:00:17 UTC | 2.1ml | 55 km ESE of Whittier, Alaska 60.642°, -147.715° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 55 km ESE of Whittier, Alaska on May 20, 2026 at 23:00 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 22:35:31 UTC | 2.2ml | 46 km ESE of Chignik, Alaska 56.183°, -157.682° | 53.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 46 km ESE of Chignik, Alaska on May 20, 2026 at 22:35 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 22:25:00 UTC | 2.5md | 14 km NNW of Squaw Valley, CA 36.854°, -119.315° | 20.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 14 km NNW of Squaw Valley, CA on May 20, 2026 at 22:25 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 22:01:39 UTC | 2.0md | 11 km E of Pāhala, Hawaii 19.188°, -155.371° | 29.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 11 km E of Pāhala, Hawaii came in on May 20, 2026 at 22:01 UTC. Coming 2 hours after a magnitude 2.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:57:47 UTC | 2.9md | 2 km ENE of Magas Arriba, Puerto Rico 18.024°, -66.750° | 12.3 km | - | - | - | ✓ Reviewed | USGS → |
May 20, 2026 brought a magnitude 2.9 earthquake 2 km ENE of Magas Arriba, Puerto Rico, logged at 21:57 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:33:46 UTC | 4.6mb | South Sandwich Islands region -57.057°, -25.043° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 earthquake was recorded in the South Sandwich Islands region on May 20, 2026 at 21:33 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:27:25 UTC | 4.2mb | 69 km ESE of Hitachi, Japan 36.375°, 141.376° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 69 km ESE of Hitachi, Japan on May 20, 2026 at 21:27 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:24:43 UTC | 2.8ml | 17 km SE of Silver Springs, Nevada 39.308°, -119.069° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.8 earthquake 17 km SE of Silver Springs, Nevada with origin time 21:24 UTC on May 20, 2026. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:20:22 UTC | 2.7ml | 51 km ENE of Chase, Alaska 62.705°, -149.257° | 55.3 km | - | - | - | ✓ Reviewed | USGS → |
On May 20, 2026, worldwide seismic activity registered a magnitude 2.7 earthquake 51 km ENE of Chase, Alaska at 21:20 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:09:24 UTC | 3.1ml | 67 km ESE of Atka, Alaska 51.956°, -173.297° | 69.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 67 km ESE of Atka, Alaska on May 20, 2026, with origin time 21:09 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:06:40 UTC | 2.5ml | 16 km SSE of Unalaska, Alaska 53.726°, -166.480° | 102.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 16 km SSE of Unalaska, Alaska at 21:06 UTC on May 20, 2026. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 21:04:58 UTC | 4.4mb | 56 km S of Kawalu, Indonesia -7.886°, 108.282° | 76.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place 56 km S of Kawalu, Indonesia on May 20, 2026 at 21:04 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 20:54:35 UTC | 4.4mb | Pagan region, Northern Mariana Islands 18.232°, 145.884° | 143.6 km | - | - | - | ✓ Reviewed | USGS → |
May 20, 2026 brought a magnitude 4.4 earthquake in the Pagan region, Northern Mariana Islands, logged at 20:54 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 20:44:25 UTC | 2.1ml | 126 km WNW of Yakutat, Alaska 59.840°, -141.903° | 1.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 126 km WNW of Yakutat, Alaska with origin time 20:44 UTC on May 20, 2026. 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. | ||||||||
2026-05-20 2026-05-20 20:40:14 UTC | 3.3ml | 11 km ENE of Nikolaevsk, Alaska 59.865°, -151.443° | 75.9 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.3 earthquake 11 km ENE of Nikolaevsk, Alaska with origin time 20:40 UTC on May 20, 2026. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 20:30:38 UTC | 4.3mb | 55 km NNW of Tarama, Japan 25.093°, 124.407° | 100.9 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 55 km NNW of Tarama, Japan on May 20, 2026, with origin time 20:30 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 20:03:05 UTC | 2.1ml | 3 km SW of Pāhala, Hawaii 19.175°, -155.498° | 33.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 3 km SW of Pāhala, Hawaii on May 20, 2026, with origin time 20:03 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 20:01:58 UTC | 2.2ml | 30 km WNW of Ivanof Bay, Alaska 55.983°, -159.952° | 5.2 km | - | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.2 earthquake 30 km WNW of Ivanof Bay, Alaska with origin time 20:01 UTC on May 20, 2026. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 19:58:33 UTC | 2.0ml | 13 km SE of Pearsall, Texas 28.804°, -98.996° | 7.0 km | - | - | - | ✓ Reviewed | USGS → |
May 20, 2026 brought a magnitude 2.0 earthquake 13 km SE of Pearsall, Texas, logged at 19:58 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 19:40:56 UTC | 2.1ml | 24 km NW of Huntington, Oregon 44.515°, -117.468° | -1.1 km | - | - | - | ✓ Reviewed | USGS → |
May 20, 2026 brought a magnitude 2.1 earthquake 24 km NW of Huntington, Oregon, logged at 19:40 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. | ||||||||
2026-05-20 2026-05-20 19:30:40 UTC | 2.7ml | 89 km NW of Yakutat, Alaska 60.174°, -140.735° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
At 19:30 UTC on May 20, 2026, a magnitude 2.7 tremor occurred 89 km NW of Yakutat, Alaska. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-05-20 2026-05-20 19:03:46 UTC | 4.6mb | 100 km E of Hihifo, Tonga -16.047°, -172.861° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.6 earthquake 100 km E of Hihifo, Tonga with origin time 19:03 UTC on May 20, 2026. The event was offshore. See the M4.6 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 20, 2026. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.