Back to map
M5.5 Depth: 50.8 km

M5.5 Earthquake near Sakai, Ibaraki Prefecture (Japan)

UTC time: 2026-06-16 10:46:33 UTC Local time: —

About this earthquake

A magnitude M5.5 earthquake was recorded near Sakai, Ibaraki Prefecture (Japan) on June 16, 2026 at 10:46 UTC. With a focal depth of about 51 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Events of this size can cause damage near the epicenter.

The data is provided by EMSC and cross-checked across seismological networks. Japan: over the past 24 hours, QuakeMap24 logged 4 earthquakes, the strongest at M4.8.

Details

Magnitude
M5.5
Depth
50.8 km
UTC time
2026-06-16 10:46:33 UTC
Local time
—
Country
Japan
State
Ibaraki Prefecture
City
Sakai
County
Sashima County
Source
emsc
Coordinates
36.07120, 139.83000
Temperature
20.7°C

Map

Depth profile

Depth profile Depth: 50.8 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 50.8 km
Shallow
50.8 km
50.8 km — deeper than the regional average (34.9 km)
Regional average: 34.9 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.
Estimated population exposed
IV 42'159'836
109 Felt reports · max reported intensity 5

Ground shaking

IV
Light · Intensity (MMI) IV
Felt by many, no damage.

Tectonic context

Located on the Okhotsk Plate.
Near the boundary Okhotsk ↔ Philippine Sea · about 129 km away

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Bandō3.3 kmE57'128
Kasukabe12.2 kmSW229'792
Saitama23.9 kmSW1'324'854

GeoNames · CC BY 4.0

Volcanoes nearby

  • Akagisan
    Distance: 79 km ·Stratovolcano ·Elevation: 1'828 m ·Japan
  • Nantaisan
    Distance: 83 km ·Stratovolcano ·Elevation: 2'486 m ·Last eruption: -9540 ·Japan
  • Omanago Group
    Distance: 88 km ·Lava dome(s) ·Elevation: 2'341 m ·Last eruption: -3050 ·Japan
  • Nikko-Shiranesan
    Distance: 91 km ·Shield ·Elevation: 2'578 m ·Last eruption: 1952 ·Japan
  • Takaharayama
    Distance: 92 km ·Stratovolcano ·Elevation: 1'795 m ·Last eruption: -4570 ·Japan
  • Harunasan
    Distance: 99 km ·Stratovolcano ·Elevation: 1'449 m ·Last eruption: 550 ·Japan

Historical context nearby

Comparison with recorded earthquakes before this event within 150 km.

Magnitude rank#2
Earlier events M≥498
Earlier events M≥516
Compared since2025-01-04

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

Strongest earlier events

M5.52026-06-16 10:46:28 UTC4.0 kmSugito M5.22026-02-03 09:03:23 UTC121.2 kmbei ci cheng shi M5.22025-08-13 19:13:34 UTC140.6 kmNear East Coast of Honshu, Japan M5.22025-07-15 14:47:11 UTC85.2 kmNear East Coast of Honshu, Japan M5.22025-07-15 14:47:11 UTC85.7 km

Historic earthquake map · Japan

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Japan

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

Share