Earthquakes on June 16, 2023
290
EARTHQUAKES on June 16, 2023
24-hour UTC period · USGS data
LARGEST: M6.2 — 254 km SSW of ‘Ohonua, Tonga
16 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
7
M4.0–4.9
49
M3.0–3.9
19
M2.0–2.9
57
M1.0–1.9
158
Activity Summary
290
Total earthquakes
~250
Daily average
Normal
Activity level
7
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.2
254 km SSW of ‘Ohonua, Tonga
19:10 UTC · 16.0 km deep
6.0
261 km SSW of ‘Ohonua, Tonga
08:11 UTC · 20.0 km deep
5.8
254 km SSW of ‘Ohonua, Tonga
10:45 UTC · 20.0 km deep
5.5
266 km SSW of ?Ohonua, Tonga
20:30 UTC · 14.0 km deep
5.1
251 km SSW of ‘Ohonua, Tonga
08:41 UTC · 17.6 km deep
5.0
251 km SSW of ‘Ohonua, Tonga
17:04 UTC · 10.0 km deep
5.0
India-Bangladesh border region
04:46 UTC · 10.0 km deep
Felt by 78
4.9
81 km SW of Basco, Philippines
18:56 UTC · 10.0 km deep
Earthquake Map — June 16, 2023
All Earthquakes — June 16, 2023
Showing 30 of 132 (filtered from 290)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-06-16 2023-06-16 23:56:45 UTC | 2.0ml | northern Alaska 64.383°, -163.628° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected near northern Alaska on June 16, 2023, with origin time 23:56 UTC. It arrived roughly 17 hours after a larger magnitude 4.3 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. | ||||||||
2023-06-16 2023-06-16 23:53:22 UTC | 4.8mb | Kuril Islands 46.183°, 152.734° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.8 earthquake was recorded near Kuril Islands on June 16, 2023 at 23:53 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:48:18 UTC | 4.2mb | 70 km SW of La Tirana, Chile -20.645°, -70.689° | 31.3 km | 1 | - | - | ✓ Reviewed | USGS → |
At 23:48 UTC on June 16, 2023, a magnitude 4.2 tremor occurred 70 km SW of La Tirana, Chile. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:40:18 UTC | 4.4mb | Kermadec Islands, New Zealand -29.707°, -177.378° | 32.8 km | - | - | - | ✓ Reviewed | USGS → |
At 23:40 UTC on June 16, 2023, a magnitude 4.4 tremor occurred near Kermadec Islands, New Zealand. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:36:36 UTC | 2.2md | 9 km SSE of Maria Antonia, Puerto Rico 17.905°, -66.845° | 16.4 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.2 earthquake 9 km SSE of Maria Antonia, Puerto Rico came in on June 16, 2023 at 23:36 UTC. Coming 3 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:33:35 UTC | 2.0ml | 37 km ESE of Atka, Alaska 52.011°, -173.734° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 37 km ESE of Atka, Alaska came in on June 16, 2023 at 23:33 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.7 earthquake that occurred about 2 hours earlier. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:19:57 UTC | 2.6ml | 5km W of Malibu, CA 34.011°, -118.864° | 7.1 km | 34 | - | - | ✓ Reviewed | USGS → |
At 23:19 UTC on June 16, 2023, a magnitude 2.6 tremor occurred 5km W of Malibu, CA. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:11:21 UTC | 2.6ml | 99 km WSW of Adak, Alaska 51.406°, -177.864° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 99 km WSW of Adak, Alaska at 23:11 UTC on June 16, 2023. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:02:33 UTC | 4.3mb | 30 km N of Denov, Uzbekistan 38.535°, 67.838° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
June 16, 2023 brought a magnitude 4.3 earthquake 30 km N of Denov, Uzbekistan, logged at 23:02 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 23:02:17 UTC | 2.3md | 1 km NNW of Indios, Puerto Rico 18.008°, -66.829° | 13.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 1 km NNW of Indios, Puerto Rico came in on June 16, 2023 at 23:02 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 2 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 22:55:03 UTC | 3.1ml | 189 km WSW of Adak, Alaska 51.504°, -179.302° | 74.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 seismic event took place 189 km WSW of Adak, Alaska on June 16, 2023 at 22:55 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:48:16 UTC | 3.5md | 42 km SE of Punta Cana, Dominican Republic 18.349°, -68.082° | 111.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.5 earthquake was recorded 42 km SE of Punta Cana, Dominican Republic on June 16, 2023 at 21:48 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:36:43 UTC | 3.3ml | 117 km ESE of Akutan, Alaska 53.839°, -164.060° | 20.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.3 earthquake 117 km ESE of Akutan, Alaska at 21:36 UTC on June 16, 2023. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:32:39 UTC | 3.7mb | Andreanof Islands, Aleutian Islands, Alaska 51.858°, -173.781° | 10.0 km | - | II | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.7 earthquake near Andreanof Islands, Aleutian Islands, Alaska came in on June 16, 2023 at 21:32 UTC. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:26:28 UTC | 2.6ml | 103 km SW of Nikolski, Alaska 52.285°, -169.947° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.6 event was detected 103 km SW of Nikolski, Alaska on June 16, 2023, with origin time 21:26 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:18:33 UTC | 2.2ml | 105 km SE of Akutan, Alaska 53.541°, -164.518° | 25.1 km | - | - | - | ✓ Reviewed | USGS → |
June 16, 2023 brought a magnitude 2.2 earthquake 105 km SE of Akutan, Alaska, logged at 21:18 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 21:03:38 UTC | 4.1mb | 259 km SSW of ‘Ohonua, Tonga -23.550°, -175.805° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 259 km SSW of ‘Ohonua, Tonga on June 16, 2023 at 21:03 UTC. It arrived roughly 2 hours after a larger magnitude 6.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:59:48 UTC | 4.6mb | 262 km SSW of ?Ohonua, Tonga -23.527°, -175.947° | 35.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 262 km SSW of ?Ohonua, Tonga on June 16, 2023, with origin time 20:59 UTC. Coming 13 hours after a magnitude 6.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:55:47 UTC | 4.7mb | Tonga region -23.551°, -175.684° | 4.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 seismic event took place in the Tonga region on June 16, 2023 at 20:55 UTC. It arrived roughly 2 hours after a larger magnitude 6.2 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 M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:52:23 UTC | 4.4mb | 179 km N of Tobelo, Indonesia 3.338°, 128.233° | 94.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.4 earthquake 179 km N of Tobelo, Indonesia at 20:52 UTC on June 16, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:36:52 UTC | 3.0md | 9 km S of Guánica, Puerto Rico 17.882°, -66.905° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.0 earthquake 9 km S of Guánica, Puerto Rico with origin time 20:36 UTC on June 16, 2023. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:30:44 UTC | 5.5mww | 266 km SSW of ?Ohonua, Tonga -23.583°, -175.899° | 14.0 km | - | - | green | ✓ Reviewed | USGS → |
On June 16, 2023, worldwide seismic activity registered a magnitude 5.5 earthquake 266 km SSW of ?Ohonua, Tonga at 20:30 UTC. It arrived roughly 12 hours after a larger magnitude 6.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:27:11 UTC | 2.2ml | 11 km NE of Star Valley Ranch, Wyoming 43.039°, -110.844° | 3.4 km | - | - | - | ✓ Reviewed | USGS → |
On June 16, 2023 at 20:27 UTC, a magnitude 2.2 earthquake struck 11 km NE of Star Valley Ranch, Wyoming. Coming 4 hours after a magnitude 2.6 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 20:01:58 UTC | 4.7mb | 281 km SSW of ?Ohonua, Tonga -23.791°, -175.701° | 28.1 km | - | - | - | ✓ Reviewed | USGS → |
June 16, 2023 brought a magnitude 4.7 earthquake 281 km SSW of ?Ohonua, Tonga, logged at 20:01 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.8 earthquake that occurred about 19 hours earlier. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 19:45:34 UTC | 2.7ml | 87 km SSE of Akutan, Alaska 53.459°, -165.102° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 87 km SSE of Akutan, Alaska with origin time 19:45 UTC on June 16, 2023. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 19:43:46 UTC | 4.1mb | Bonin Islands, Japan region 28.988°, 139.396° | 413.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake in the Bonin Islands, Japan region with origin time 19:43 UTC on June 16, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 19:37:50 UTC | 2.7ml | 264 km SE of Attu Station, Alaska 51.497°, 176.365° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 16, 2023, worldwide seismic activity registered a magnitude 2.7 earthquake 264 km SE of Attu Station, Alaska at 19:37 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 19:24:30 UTC | 4.5mb | 263 km SSW of ‘Ohonua, Tonga -23.627°, -175.651° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.5 earthquake 263 km SSW of ‘Ohonua, Tonga came in on June 16, 2023 at 19:24 UTC. It arrived roughly 1 hours after a larger magnitude 6.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 19:10:51 UTC | 6.2mww | 254 km SSW of ‘Ohonua, Tonga -23.558°, -175.621° | 16.0 km | - | - | green | ✓ Reviewed | USGS → |
On June 16, 2023 at 19:10 UTC, a magnitude 6.2 earthquake struck 254 km SSW of ‘Ohonua, Tonga. A tsunami evaluation was automatically initiated given the magnitude and location. 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 M6.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-06-16 2023-06-16 18:59:49 UTC | 3.5ml | 193 km WSW of Adak, Alaska 51.107°, -179.136° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On June 16, 2023 at 18:59 UTC, a magnitude 3.5 earthquake struck 193 km WSW of Adak, Alaska. See the M3.5 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 June 16, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.