Earthquakes on July 23, 2020
500
EARTHQUAKES on July 23, 2020
24-hour UTC period · USGS data
LARGEST: M5.1 — western Xizang
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
2
M4.0–4.9
34
M3.0–3.9
21
M2.0–2.9
132
M1.0–1.9
311
Activity Summary
500
Total earthquakes
~250
Daily average
Elevated
Activity level
2
M5.0+ events
Significant Earthquakes (M4.5+)
5.1
western Xizang
10:50 UTC · 10.0 km deep
5.0
57 km ESE of Sand Point, Alaska
11:08 UTC · 44.9 km deep
4.9
111 km E of Ust’-Kamchatsk Staryy, Russia
15:47 UTC · 10.0 km deep
4.7
115 km E of Ust’-Kamchatsk Staryy, Russia
22:12 UTC · 10.0 km deep
4.7
54 km S of Sand Point, Alaska
19:56 UTC · 41.0 km deep
4.7
52 km W of San Nicolas, Philippines
04:41 UTC · 35.0 km deep
4.6
122 km ESE of Iwaki, Japan
13:19 UTC · 35.0 km deep
4.6
south of the Fiji Islands
04:19 UTC · 563.8 km deep
Earthquake Map — July 23, 2020
All Earthquakes — July 23, 2020
Showing 30 of 189 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2020-07-23 2020-07-23 23:53:27 UTC | 2.2ml | 59 km S of Sand Point, Alaska 54.809°, -160.361° | 24.9 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020 at 23:53 UTC, a magnitude 2.2 earthquake struck 59 km S of Sand Point, Alaska. Coming 4 hours after a magnitude 4.7 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. | ||||||||
2020-07-23 2020-07-23 23:38:57 UTC | 2.9ml | 103 km SSE of Sand Point, Alaska 54.439°, -160.096° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
July 23, 2020 brought a magnitude 2.9 earthquake 103 km SSE of Sand Point, Alaska, logged at 23:38 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 23:32:17 UTC | 2.9ml | 88 km S of Perryville, Alaska 55.112°, -159.112° | 35.6 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020 at 23:32 UTC, a magnitude 2.9 earthquake struck 88 km S of Perryville, Alaska. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 23:29:18 UTC | 2.9md | 10 km SSE of Guánica, Puerto Rico 17.884°, -66.873° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 10 km SSE of Guánica, Puerto Rico on July 23, 2020 at 23:29 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 19 hours earlier. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 23:28:29 UTC | 2.0ml | 47 km SSE of Unalaska, Alaska 53.501°, -166.189° | 46.6 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 47 km SSE of Unalaska, Alaska at 23:28 UTC on July 23, 2020. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 23:27:54 UTC | 3.3ml | 111 km SSW of Sand Point, Alaska 54.378°, -161.006° | 4.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020, worldwide seismic activity registered a magnitude 3.3 earthquake 111 km SSW of Sand Point, Alaska at 23:27 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 23:08:08 UTC | 2.6md | 9 km S of Indios, Puerto Rico 17.907°, -66.832° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 9 km S of Indios, Puerto Rico on July 23, 2020 at 23:08 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:48:34 UTC | 3.2md | 89 km NE of Punta Cana, Dominican Republic 19.067°, -67.727° | 46.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:48 UTC on July 23, 2020, a magnitude 3.2 tremor occurred 89 km NE of Punta Cana, Dominican Republic. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:37:52 UTC | 2.6ml | 18 km SW of Van Horn, Texas 30.904°, -104.943° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 earthquake was recorded 18 km SW of Van Horn, Texas on July 23, 2020 at 22:37 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:37:26 UTC | 2.0ml | 25 km N of Blanca, Colorado 37.668°, -105.481° | 5.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 25 km N of Blanca, Colorado on July 23, 2020, with origin time 22:37 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:20:18 UTC | 2.6ml | 105 km SSE of Perryville, Alaska 55.006°, -158.655° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.6 earthquake 105 km SSE of Perryville, Alaska with origin time 22:20 UTC on July 23, 2020. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 17 hours earlier. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:12:49 UTC | 4.7mb | 115 km E of Ust’-Kamchatsk Staryy, Russia 56.322°, 164.341° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020, worldwide seismic activity registered a magnitude 4.7 earthquake 115 km E of Ust’-Kamchatsk Staryy, Russia at 22:12 UTC. It arrived roughly 6 hours after a larger magnitude 4.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:11:36 UTC | 4.4mb | 107 km E of Ust’-Kamchatsk Staryy, Russia 56.242°, 164.206° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020, worldwide seismic activity registered a magnitude 4.4 earthquake 107 km E of Ust’-Kamchatsk Staryy, Russia at 22:11 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.9 earthquake that occurred about 6 hours earlier. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 22:08:40 UTC | 4.3mb | 120 km WNW of Adak, Alaska 52.420°, -178.155° | 234.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place 120 km WNW of Adak, Alaska on July 23, 2020 at 22:08 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:59:43 UTC | 3.7ml | 18 km NE of Yakutat, Alaska 59.659°, -139.475° | 20.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.7 earthquake was recorded 18 km NE of Yakutat, Alaska on July 23, 2020 at 21:59 UTC. The event was offshore. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:57:14 UTC | 2.8ml | 28 km S of Mina, Nevada 38.130°, -118.099° | 3.1 km | - | - | - | ✓ Reviewed | USGS → |
At 21:57 UTC on July 23, 2020, a magnitude 2.8 tremor occurred 28 km S of Mina, Nevada. This event falls inside the aftershock decay of a nearby magnitude 4.2 earthquake that occurred about 5 hours earlier. 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. | ||||||||
2020-07-23 2020-07-23 21:55:23 UTC | 2.5md | 1 km SW of Indios, Puerto Rico 17.988°, -66.826° | 18.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020 at 21:55 UTC, a magnitude 2.5 earthquake struck 1 km SW of Indios, Puerto Rico. Coming 17 hours after a magnitude 3.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:53:45 UTC | 2.9ml | 98 km SSE of Perryville, Alaska 55.149°, -158.363° | 34.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 earthquake was recorded 98 km SSE of Perryville, Alaska on July 23, 2020 at 21:53 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 17 hours earlier. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:38:28 UTC | 3.4mb | 66 km ESE of Sand Point, Alaska 55.115°, -159.524° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.4 earthquake 66 km ESE of Sand Point, Alaska with origin time 21:38 UTC on July 23, 2020. It arrived roughly 10 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:35:28 UTC | 2.4md | 0 km NW of Indios, Puerto Rico 17.997°, -66.823° | 16.0 km | 1 | - | - | ✓ Reviewed | USGS → |
At 21:35 UTC on July 23, 2020, a magnitude 2.4 tremor occurred 0 km NW of Indios, Puerto Rico. It arrived roughly 17 hours after a larger magnitude 3.9 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:28:52 UTC | 3.2ml | 31 km SE of Mina, Nevada 38.222°, -117.814° | 7.7 km | 4 | III | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.2 earthquake 31 km SE of Mina, Nevada at 21:28 UTC on July 23, 2020. It arrived roughly 4 hours after a larger magnitude 4.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:28:10 UTC | 2.3ml | 57 km ESE of Sand Point, Alaska 55.217°, -159.619° | 39.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 57 km ESE of Sand Point, Alaska at 21:28 UTC on July 23, 2020. Coming 10 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:25:18 UTC | 2.0ml | 62 km ESE of Sand Point, Alaska 55.204°, -159.549° | 40.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 62 km ESE of Sand Point, Alaska came in on July 23, 2020 at 21:25 UTC. It arrived roughly 10 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:20:34 UTC | 2.8ml | 51 km SSE of Sand Point, Alaska 54.898°, -160.243° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 51 km SSE of Sand Point, Alaska at 21:20 UTC on July 23, 2020. Coming 13 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:10:43 UTC | 3.8md | 2 km SE of Yauco, Puerto Rico 18.018°, -66.832° | 12.0 km | 45 | - | - | ✓ Reviewed | USGS → |
On July 23, 2020 at 21:10 UTC, a magnitude 3.8 earthquake struck 2 km SE of Yauco, Puerto Rico. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 16 hours earlier. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 21:01:31 UTC | 2.5md | 1 km NW of Indios, Puerto Rico 18.001°, -66.828° | 15.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 1 km NW of Indios, Puerto Rico at 21:01 UTC on July 23, 2020. Coming 16 hours after a magnitude 3.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 20:49:39 UTC | 4.0mb | Fiji region -18.630°, -177.620° | 627.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 23, 2020 at 20:49 UTC, a magnitude 4.0 earthquake struck in the Fiji region. 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. | ||||||||
2020-07-23 2020-07-23 20:31:32 UTC | 2.1ml | 43 km NNE of King Cove, Alaska 55.405°, -161.999° | 159.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place 43 km NNE of King Cove, Alaska on July 23, 2020 at 20:31 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 20:23:53 UTC | 2.1ml | 30 km NW of Nikiski, Alaska 60.907°, -151.623° | 70.5 km | - | - | - | ✓ Reviewed | USGS → |
July 23, 2020 brought a magnitude 2.1 earthquake 30 km NW of Nikiski, Alaska, logged at 20:23 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2020-07-23 2020-07-23 20:09:55 UTC | 3.0ml | 18 km SW of Lowell Point, Alaska 59.934°, -149.636° | 11.7 km | 2 | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 18 km SW of Lowell Point, Alaska on July 23, 2020 at 20:09 UTC. The event was offshore. See the M3.0 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 July 23, 2020. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.