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Tonga · Haʻapai

M4.9 Earthquake near Haʻapai (Tonga)

UTC time: 2026-07-20 21:11:30 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

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About this earthquake

On July 20, 2026 at 21:11 UTC, a magnitude M4.9 earthquake occurred near Haʻapai (Tonga). With a focal depth of about 57 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Tremors of this size are distinctly felt and can occasionally cause light damage.

The data is provided by USGS and cross-checked across seismological networks.

Details

ID
57985615d2f7bd1a3e5a89cf5d37fdab3fb8da8b
Magnitude
M4.9
Depth
57.5 km
UTC time
2026-07-20 21:11:30 UTC
Local time
—
Country
Tonga
State
Haʻapai
City
Haʻapai
Source
usgs
Coordinates
-19.66250, -174.92570
Temperature
22.9°C

Depth profile

Depth profile Depth: 57.5 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 57.5 km
Shallow
57.5 km
57.5 km — shallower than the regional average (98.4 km)
Regional average: 98.4 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Tectonic context

Located on the Tonga Plate.
Near the boundary Tonga ↔ Niuafoʻou · about 29 km away

Volcanoes nearby

  • Kao
    Distance: 9 km ·Stratovolcano ·Elevation: 1'009 m ·Last eruption: 1847 ·Tonga
  • Tofua
    Distance: 18 km ·Caldera ·Elevation: 515 m ·Last eruption: 2026 ·Tonga
  • Lateiki
    Distance: 54 km ·Stratovolcano ·Elevation: 43 m ·Last eruption: 2019 ·Tonga
  • Home Reef
    Distance: 76 km ·Stratovolcano ·Elevation: -10 m ·Last eruption: 2026 ·Tonga
  • Fonuafo'ou
    Distance: 90 km ·Stratovolcano ·Elevation: -17 m ·Last eruption: 1936 ·Tonga
  • Late
    Distance: 100 km ·Stratovolcano ·Elevation: 540 m ·Last eruption: 1854 ·Tonga

Tonga

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 12 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Tonga

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Country statistics · Tonga

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

Stats (last 24h)

Global (24h)
449
Country (24h)
Tonga
0
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