Earthquakes on July 17, 2023
298
EARTHQUAKES on July 17, 2023
24-hour UTC period · USGS data
186 km deep · 447 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
29
M3.0–3.9
24
M2.0–2.9
71
M1.0–1.9
170
Activity Summary
298
Total earthquakes
~250
Daily average
Normal
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.6
19 km SE of Loncopué, Argentina
03:05 UTC · 186.0 km deep
Felt by 447
5.6
79 km NE of Sanana, Indonesia
04:42 UTC · 10.0 km deep
5.4
49 km SW of Malisbeng, Philippines
15:35 UTC · 9.0 km deep
Felt by 5
5.0
73 km NE of Sanana, Indonesia
09:46 UTC · 10.0 km deep
4.9
146 km SE of Tatsugō, Japan
16:23 UTC · 18.2 km deep
4.8
113 km S of False Pass, Alaska
21:59 UTC · 47.8 km deep
Felt by 1
4.8
17 km ESE of Tingo María, Peru
09:58 UTC · 10.0 km deep
Felt by 4
4.8
12 km SSE of Obihiro, Japan
00:37 UTC · 121.4 km deep
Earthquake Map — July 17, 2023
All Earthquakes — July 17, 2023
Showing 30 of 128 (filtered from 298)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-07-17 2023-07-17 23:59:36 UTC | 2.2ml | 96 km WSW of Nikolski, Alaska 52.752°, -170.266° | 153.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 96 km WSW of Nikolski, Alaska at 23:59 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:39:20 UTC | 2.4ml | 63 km E of Ugashik, Alaska 57.438°, -156.343° | 89.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 63 km E of Ugashik, Alaska on July 17, 2023 at 23:39 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:28:57 UTC | 2.3ml | 74 km SSW of Sand Point, Alaska 54.736°, -161.030° | 15.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 74 km SSW of Sand Point, Alaska at 23:28 UTC on July 17, 2023. Coming 10 hours after a magnitude 3.8 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. | ||||||||
2023-07-17 2023-07-17 23:28:15 UTC | 2.1ml | 7 km NW of Nanwalek, Alaska 59.404°, -152.023° | 57.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 7 km NW of Nanwalek, Alaska on July 17, 2023 at 23:28 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:24:04 UTC | 2.1ml | 57 km S of Whites City, New Mexico 31.662°, -104.261° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 57 km S of Whites City, New Mexico with origin time 23:24 UTC on July 17, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:15:02 UTC | 2.6ml | 58 km S of Whites City, New Mexico 31.659°, -104.263° | 6.4 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023, worldwide seismic activity registered a magnitude 2.6 earthquake 58 km S of Whites City, New Mexico at 23:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:13:03 UTC | 2.9ml | 58 km NW of Toyah, Texas 31.654°, -104.262° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.9 earthquake 58 km NW of Toyah, Texas came in on July 17, 2023 at 23:13 UTC. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:04:39 UTC | 3.3ml | 36 km N of Atka, Alaska 52.527°, -174.253° | 185.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023, worldwide seismic activity registered a magnitude 3.3 earthquake 36 km N of Atka, Alaska at 23:04 UTC. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 23:01:42 UTC | 4.2mb | Pulau-Pulau Sula, Indonesia -1.593°, 126.320° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 17, 2023 brought a magnitude 4.2 earthquake near Pulau-Pulau Sula, Indonesia, logged at 23:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.6 earthquake that occurred about 18 hours earlier. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 22:46:00 UTC | 3.3ml | 42 km S of Adak, Alaska 51.492°, -176.639° | 34.2 km | - | - | - | ✓ Reviewed | USGS → |
At 22:46 UTC on July 17, 2023, a magnitude 3.3 tremor occurred 42 km S of Adak, Alaska. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:59:04 UTC | 4.8mww | 113 km S of False Pass, Alaska 53.836°, -163.567° | 47.8 km | 1 | II | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.8 earthquake 113 km S of False Pass, Alaska at 21:59 UTC on July 17, 2023. A tsunami evaluation was automatically initiated given the magnitude and location. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:57:04 UTC | 2.3md | 6 km S of Ferndale, CA 40.522°, -124.263° | 23.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 6 km S of Ferndale, CA on July 17, 2023, with origin time 21:57 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:51:09 UTC | 2.4ml | 76 km SSW of Sand Point, Alaska 54.664°, -160.762° | 4.8 km | - | - | - | ✓ Reviewed | USGS → |
July 17, 2023 brought a magnitude 2.4 earthquake 76 km SSW of Sand Point, Alaska, logged at 21:51 UTC. Coming 13 hours after a magnitude 3.8 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. | ||||||||
2023-07-17 2023-07-17 21:42:22 UTC | 2.5ml | 64 km S of Kokhanok, Alaska 58.870°, -154.567° | 115.8 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023 at 21:42 UTC, a magnitude 2.5 earthquake struck 64 km S of Kokhanok, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:25:27 UTC | 3.2ml | 58 km S of Whites City, New Mexico 31.653°, -104.476° | 5.9 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.2 earthquake 58 km S of Whites City, New Mexico at 21:25 UTC on July 17, 2023. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:18:27 UTC | 2.0ml | 47 km S of Tolsona, Alaska 61.661°, -146.138° | 26.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 47 km S of Tolsona, Alaska with origin time 21:18 UTC on July 17, 2023. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 21:15:45 UTC | 2.9ml | 81 km SSW of Sand Point, Alaska 54.698°, -161.120° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 81 km SSW of Sand Point, Alaska on July 17, 2023 at 21:15 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.8 earthquake that occurred about 8 hours earlier. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 19:52:53 UTC | 3.0ml | Andreanof Islands, Aleutian Islands, Alaska 51.653°, -178.757° | 17.5 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023, worldwide seismic activity registered a magnitude 3.0 earthquake near Andreanof Islands, Aleutian Islands, Alaska at 19:52 UTC. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 19:46:26 UTC | 2.8ml | 261 km SSW of Nikolski, Alaska 50.922°, -170.805° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:46 UTC on July 17, 2023, a magnitude 2.8 tremor occurred 261 km SSW of Nikolski, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 1 hours earlier. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:58:27 UTC | 4.2mb | 135 km WSW of Buala, Solomon Islands -8.425°, 158.395° | 162.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023 at 18:58 UTC, a magnitude 4.2 earthquake struck 135 km WSW of Buala, Solomon Islands. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:42:06 UTC | 4.1mb | south of Africa -53.367°, 25.268° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.1 earthquake south of Africa came in on July 17, 2023 at 18:42 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:31:48 UTC | 2.9ml | 254 km SSW of Nikolski, Alaska 50.998°, -170.813° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 17, 2023 brought a magnitude 2.9 earthquake 254 km SSW of Nikolski, Alaska, logged at 18:31 UTC. Coming 1 hours after a magnitude 3.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:28:47 UTC | 3.2ml | 258 km SSW of Nikolski, Alaska 50.956°, -170.829° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.2 event was detected 258 km SSW of Nikolski, Alaska on July 17, 2023, with origin time 18:28 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:06:27 UTC | 4.2mb | 85 km ESE of La Tirana, Chile -20.606°, -68.891° | 110.2 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 earthquake was recorded 85 km ESE of La Tirana, Chile on July 17, 2023 at 18:06 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 18:04:26 UTC | 4.6mb | Kermadec Islands, New Zealand -29.916°, -177.229° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 17, 2023 brought a magnitude 4.6 earthquake near Kermadec Islands, New Zealand, logged at 18:04 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 17:52:32 UTC | 3.0ml | 118 km S of Sand Point, Alaska 54.282°, -160.784° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:52 UTC on July 17, 2023, a magnitude 3.0 tremor occurred 118 km S of Sand Point, Alaska. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 17:47:03 UTC | 2.0ml | Utah 41.126°, -112.892° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 17, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake near Utah at 17:47 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. | ||||||||
2023-07-17 2023-07-17 17:43:57 UTC | 2.7md | 2 km NNE of Almanor, CA 40.235°, -121.163° | 6.2 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.7 seismic event took place 2 km NNE of Almanor, CA on July 17, 2023 at 17:43 UTC. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 17:35:58 UTC | 2.6ml | 66 km SE of Adak, Alaska 51.530°, -175.844° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 17:35 UTC on July 17, 2023, a magnitude 2.6 tremor occurred 66 km SE of Adak, Alaska. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-07-17 2023-07-17 17:24:44 UTC | 2.0ml | 18 km E of Pleasanton, Texas 28.960°, -98.285° | 7.5 km | - | - | - | ✓ Reviewed | USGS → |
At 17:24 UTC on July 17, 2023, a magnitude 2.0 tremor occurred 18 km E of Pleasanton, Texas. 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 July 17, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.