Back to map

M5.5 Earthquake near Saint Helena, Ascension en Tristan da Cunha [Sea]

UTC time: 2026-06-20 06:43:20 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. How our reports are produced ↗

Magnitude
M5.5
Depth
14.8 km
Source
INGV

Saint Helena, Ascension en Tristan da Cunha [Sea]

Map

M5.5 Earthquake near Saint Helena, Ascension en Tristan da Cunha [Sea] · 2026-06-20 — Map showing the location of the epicenter
M5.5 Earthquake near Saint Helena, Ascension en Tristan da Cunha [Sea] · 2026-06-20 — Map showing the location of the epicenter

About this earthquake

On June 20, 2026 at 06:43 UTC, a magnitude M5.5 earthquake occurred near Saint Helena, Ascension en Tristan da Cunha [Sea]. The hypocenter lay relatively close to the surface at around 15 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by INGV.

Details

ID
2be7b90dacb97c03c9be4e5e03a2419d097105a6
Magnitude
M5.5
Depth
14.8 km
UTC time
2026-06-20 06:43:20 UTC
Local time
—
Country
—
Source
ingv
Coordinates
-6.84141, -12.88830
Temperature
25.8°C

Depth profile

Depth profile Depth: 14.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 14.8 km
Shallow
14.8 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

Estimated impact

Green No or minimal impact expected.

Ground shaking

III
Weak · Intensity (MMI) III
Felt by a few, no damage.

Tectonic context

Located on the South America Plate.
Near the boundary Africa ↔ South America · about 37 km away

Volcanoes nearby

  • Ascension
    Distance: 204 km ·Stratovolcano ·Elevation: 822 m ·Last eruption: 1508 ·United Kingdom

No unambiguous area assignment

Context for this earthquake

This event has no unambiguous country assignment in the analysed catalogue. It is therefore not assigned to a regional profile.

Earthquake overview

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#2
Earlier events M≥49
Earlier events M≥58
Compared since2025-05-19

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M5.62026-06-20 06:43:18 UTC43.9 kmAscension Island Region M5.52026-06-20 06:43:17 UTC47.4 km160 km NE of Georgetown, Saint Helena M5.32026-06-20 06:43:19 UTC33.4 kmAscension Island Region M5.32026-06-20 06:43:18 UTC31.6 kmAscension Island Region M5.22026-06-20 06:43:18 UTC59.7 kmEvent of magnitude 5.2, near Monrovia (Monde)

Stats (last 24h)

Global (24h)
506
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

Share