Seismic Activity in Tonga
Over the past 30 days, there have been 36 recorded earthquakes in this region. The largest recent earthquake was a magnitude 5.3 event near 265 km S of ‘Ohonua, Tonga.
Earthquakes in Tonga
1 earthquakes in the last 24 hours• Latest significant: M5.3
Earthquake Map
Recent Earthquakes (Last 30 Days)
Dataset at a glance — Tonga
Over the past 30 days, Tonga has recorded 36 earthquakes of magnitude 2.5 or greater in our tracker. 11 reached magnitude 5.0 or higher. 25 landed between M4.0 and M4.9. By depth: 23 shallow (<70 km), 5 intermediate (70–300 km), 8 deep-focus (>300 km). 4 of the epicenters were offshore. Cluster detection flagged 2 aftershock sequences; the largest contained 5 smaller events within 20 km and 72 hours of its mainshock. Focal depths ranged from 10.0 km to 631.7 km. All 36 solutions have been reviewed by a USGS seismologist.
Each row in the table below includes a narrative summary of the event, ordered by time. Use the column headers to sort or filter by magnitude.
Showing 30 of 36
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
20 hours ago 2026-08-11 18:45:19 UTC | 4.6mb | 118 km ESE of Neiafu, Tonga -19.084°, -172.951° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 118 km ESE of Neiafu, Tonga on August 11, 2026 at 18:45 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
6 days ago 2026-08-06 06:44:04 UTC | 4.5mb | 66 km NW of Houma, Tonga -20.830°, -175.826° | 113.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 66 km NW of Houma, Tonga with origin time 06:44 UTC on August 6, 2026. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
6 days ago 2026-08-05 20:59:38 UTC | 4.6mb | 99 km WSW of Houma, Tonga -21.517°, -176.189° | 137.2 km | - | - | - | ✓ Reviewed | USGS → |
August 5, 2026 brought a magnitude 4.6 earthquake 99 km WSW of Houma, Tonga, logged at 20:59 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-04 2026-08-04 14:56:14 UTC | 5.1mb | south of Tonga -24.606°, -175.230° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 14:56 UTC on August 4, 2026, a magnitude 5.1 tremor occurred south of Tonga. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-03 2026-08-03 01:35:36 UTC | 4.3mb | Fiji region -19.230°, -177.450° | 574.4 km | - | - | - | ✓ Reviewed | USGS → |
On August 3, 2026 at 01:35 UTC, a magnitude 4.3 earthquake struck in the Fiji region. It arrived roughly 66 hours after a larger magnitude 4.4 mainshock in the same 20 km area, placing it within the typical aftershock window. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-02 2026-08-02 10:34:14 UTC | 5.3mb | 265 km S of ‘Ohonua, Tonga -23.739°, -174.944° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 2, 2026 at 10:34 UTC, a magnitude 5.3 earthquake struck 265 km S of ‘Ohonua, Tonga. It is the largest earthquake currently listed for Tonga over the past 30 days. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-02 2026-08-02 06:15:41 UTC | 4.5mb | 271 km SSW of ‘Ohonua, Tonga -23.442°, -176.308° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On August 2, 2026, Tonga registered a magnitude 4.5 earthquake 271 km SSW of ‘Ohonua, Tonga at 06:15 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-01 2026-08-01 22:29:39 UTC | 4.4mb | Fiji region -20.187°, -177.999° | 522.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.4 earthquake in the Fiji region came in on August 1, 2026 at 22:29 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-08-01 2026-08-01 15:51:11 UTC | 5.1mww | south of the Fiji Islands -24.394°, -176.796° | 69.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 5.1 earthquake south of the Fiji Islands at 15:51 UTC on August 1, 2026. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-31 2026-07-31 07:32:54 UTC | 4.4mb | Fiji region -19.329°, -177.489° | 576.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 seismic event took place in the Fiji region on July 31, 2026 at 07:32 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-29 2026-07-29 20:52:10 UTC | 5.1mb | south of Tonga -24.674°, -175.278° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.1 event was detected south of Tonga on July 29, 2026, with origin time 20:52 UTC. It arrived roughly 60 hours after a larger magnitude 5.2 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-29 2026-07-29 03:52:22 UTC | 5.0mb | south of Tonga -24.636°, -174.924° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 seismic event took place south of Tonga on July 29, 2026 at 03:52 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-29 2026-07-29 00:18:06 UTC | 4.2mb | 125 km NW of Neiafu, Tonga -17.809°, -174.777° | 231.3 km | - | - | - | ✓ Reviewed | USGS → |
At 00:18 UTC on July 29, 2026, a magnitude 4.2 tremor occurred 125 km NW of Neiafu, Tonga. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 23:09:09 UTC | 4.9mb | south of Tonga -24.320°, -175.229° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 earthquake was recorded south of Tonga on July 27, 2026 at 23:09 UTC. Coming 20 hours after a magnitude 5.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 18:57:54 UTC | 4.5mb | south of Tonga -24.519°, -175.051° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 18:57 UTC on July 27, 2026, a magnitude 4.5 tremor occurred south of Tonga. It arrived roughly 17 hours after a larger magnitude 5.1 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. | ||||||||
2026-07-27 2026-07-27 18:54:57 UTC | 4.5mb | south of Tonga -24.663°, -175.354° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake south of Tonga at 18:54 UTC on July 27, 2026. This event falls inside the aftershock decay of a nearby magnitude 5.2 earthquake that occurred about 10 hours earlier. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 08:47:18 UTC | 5.2mb | south of Tonga -24.735°, -175.355° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.2 earthquake was recorded south of Tonga on July 27, 2026 at 08:47 UTC. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 08:44:08 UTC | 5.2mb | south of Tonga -24.696°, -175.244° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.2 earthquake south of Tonga with origin time 08:44 UTC on July 27, 2026. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 05:55:11 UTC | 4.8mb | south of Tonga -24.546°, -175.105° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake south of Tonga came in on July 27, 2026 at 05:55 UTC. Coming 4 hours after a magnitude 5.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 04:22:09 UTC | 4.6mb | south of Tonga -24.530°, -175.643° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2026 at 04:22 UTC, a magnitude 4.6 earthquake struck south of Tonga. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 03:36:43 UTC | 5.2mww | south of Tonga -24.436°, -175.295° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2026, Tonga registered a magnitude 5.2 earthquake south of Tonga at 03:36 UTC. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 03:12:04 UTC | 5.0mb | south of Tonga -24.471°, -175.106° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
July 27, 2026 brought a magnitude 5.0 earthquake south of Tonga, logged at 03:12 UTC. It arrived roughly 1 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 03:04:21 UTC | 4.5mb | south of Tonga -24.732°, -175.218° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected south of Tonga on July 27, 2026, with origin time 03:04 UTC. Coming 1 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 02:42:09 UTC | 4.9mww | south of Tonga -24.406°, -175.167° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.9 earthquake south of Tonga with origin time 02:42 UTC on July 27, 2026. It arrived roughly 1 hours after a larger magnitude 5.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 02:32:52 UTC | 4.9mww | south of Tonga -24.579°, -175.124° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On July 27, 2026, Tonga registered a magnitude 4.9 earthquake south of Tonga at 02:32 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 1 hours earlier. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 01:54:14 UTC | 5.1mb | south of Tonga -24.544°, -175.147° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 5.1 earthquake south of Tonga came in on July 27, 2026 at 01:54 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 M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 01:38:43 UTC | 4.9mb | south of Tonga -24.503°, -175.166° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 01:38 UTC on July 27, 2026, a magnitude 4.9 tremor occurred south of Tonga. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-27 2026-07-27 01:34:29 UTC | 4.9mb | south of Tonga -24.539°, -175.203° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.9 earthquake south of Tonga at 01:34 UTC on July 27, 2026. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-26 2026-07-26 00:02:18 UTC | 4.3mb | 279 km WSW of Houma, Tonga -21.734°, -177.932° | 395.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 279 km WSW of Houma, Tonga on July 26, 2026 at 00:02 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2026-07-24 2026-07-24 17:14:56 UTC | 5.0mb | 65 km WSW of Pangai, Tonga -20.125°, -174.891° | 49.1 km | - | - | - | ✓ Reviewed | USGS → |
On July 24, 2026 at 17:14 UTC, a magnitude 5.0 earthquake struck 65 km WSW of Pangai, Tonga. See the M5.0 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.
Earthquake Statistics
Last 24 Hours1
Last 30 Days36
2026 (M2.5+)315
Largest (30 Days)
M5.3
265 km S of ‘Ohonua, Tonga
2026-08-02
Largest in 2026
M7.5
158 km W of Neiafu, Tonga
2026-03-24
Data from USGS Earthquake Hazards Program. Updated every 5 minutes.
About Tonga
Tonga sits above one of the fastest subduction zones on Earth where the Pacific Plate dives beneath the Australian Plate at nearly 24 cm per year.
Tonga Earthquakes 2026
In 2026, Tonga has recorded 315 earthquakes of magnitude 2.5 or greater so far. The largest earthquake in Tonga in 2026 was a magnitude 7.5 event near Neiafu, Tonga.
Frequently Asked Questions
How many earthquakes occur in Tonga?
In the past 30 days, 36 earthquakes have been recorded in the Tonga region.
What was the biggest recent earthquake in Tonga?
The largest recent earthquake in the Tonga area was a magnitude 5.3 event that occurred 265 km S of ‘Ohonua, Tonga.
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