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Osore-yama Volcano

Updated: Jul 1, 2025 22:41 GMT -
stratovolcano
Honshu (Japan), 40.28°N / 141.12°E
Summit height: 879 m / 2,884 ft
Current status: normal or dormant (1 out of 5)

Osore-yama volcano (also known as Osorezan) is an active stratovolcano on the Shimokita Peninsula in northernmost Honshu, Japan.
It is known locally also as Yake-yama, or "Burning Mountain". Older residents reported that large fires and clouds were sometimes seen from the summit, but the only confirmed historic activity took place around 1787.
Earthquake swarms have been documented at Osore-yama during the second half of the 20th century, and magma bodies have been detected beneath the volcano.

[smaller] [larger]
Typical eruption style: explosive
Osore-yama volcano eruptions: 1787 or before

Latest nearby earthquakes

Date and TimeMag / DepthDistance / Location
Jul 1, 06:48 am (GMT +9)
0.5

10.2 km
27 km (17 mi) to the SE Japan: Northern Iwate Pref Info
Sunday, June 29, 2025 GMT (2 quakes)
Jun 29, 03:59 pm (GMT +9)
0.5

10.1 km
20 km (13 mi) to the W Japan: Northern Akita Pref Info
Jun 29, 02:08 pm (GMT +9)
1.4

6.4 km
6.8 km (4.2 mi) to the SW Japan: Northern Iwate Pref Info
Thursday, June 26, 2025 GMT (1 quake)
Jun 26, 06:25 pm (GMT +9)
1.1

10.5 km
29 km (18 mi) to the SE Japan: Northern Iwate Pref Info
Wednesday, June 25, 2025 GMT (1 quake)
Jun 26, 12:27 am (GMT +9)
0.4

12 km
14 km (8.6 mi) to the W Northern Iwate Pref Info
Tuesday, June 24, 2025 GMT (1 quake)
Jun 25, 07:16 am (GMT +9)
0.9

14 km
27 km (17 mi) to the N Japan: Eastern Aomori Pref Info
Monday, June 23, 2025 GMT (1 quake)
Jun 24, 05:58 am (GMT +9)
0.2

12 km
9.2 km (5.7 mi) to the S Japan: Northern Iwate Pref Info
Saturday, June 21, 2025 GMT (3 quakes)
Jun 21, 09:28 pm (GMT +9)
0.9

108 km
21 km (13 mi) to the NW Japan: Northern Akita Pref Info
Jun 21, 06:13 pm (GMT +9)
0.8

88 km
24 km (15 mi) to the NE Japan: Eastern Aomori Pref Info

Background

Osore-yama contains a 5 km wide caldera partly filled by a shallow lake draining through the northern caldera wall.
Dissected lava domes ring the caldera floor. The andesitic-to-dacitic Osore-yama is largely Pleistocene in age, with activity dating back about 800,000 years. The last identified distal tephra deposit was erupted during the late Pleistocene. The only report of historical activity was in a Tohoku district travel document published in 1787, which stated that Yake-yama in Mutsu country (Osore-yama) had erupted.
(Source: Smithsonian / GVP volcano information)

Significant volcanic eruptions: Osore-yama volcano

In the past 10,000 years, Osore-yama has had only one confirmed historic eruption in 1787.
The table below lists all known eruptions (date in bold face) of Osore-yama volcano in historic times and during the past 10,000 years. Updates on the most recent volcanic activity of Osore-yama can be found on the news page of Osore-yama volcano.
DateNoteVEIDeathsDamage
1787 or before
Historical obs./docs.
?
Remark:
Our list of volcanic eruptions closely follows the database of eruptions of the Smithsonian's Global Volcanism Project (GVP), the internationally most recognized data source for volcanic eruptions, but also includes significant eruptive episodes or related volcano events. "Volcanic eruptions" are usually to be understood as sequences of individual eruptive episodes that can follow each other, or even overlap (if several vents are involved), and can last many years, decades or even longer. For example, the current activity of Stromboli volcano is understood as a single eruption that has been ongoing since 1934.
Sources: NOAA National Centers for Environmental Information (NCEI), Global Significant Volcanic Eruptions Database. doi:10.7289/V5TD9V7K | Global Volcanism Project / Smithsonian Institution

Osore-yama Volcano FAQ

+When was the last eruption of Osore-yama volcano?

+How often does Osore-yama volcano erupt?

Latest satellite images

Osoreyama satellite image sat1Osoreyama satellite image sat2

Osore-yama Volcano Maps

Below is a selection of maps showing the location and surroundings of the volcano at various resolutions based on aerial-imagery / terrain maps. Feel free to use them for non-commercial purposes on your blog or website as long as you credit them with a link back to this page (click to copy it).
Satellite/aerial-type map of Osore-yama volcano (world scale)
Satellite/aerial-type map of Osore-yama volcano (world scale)
Terrain-type map of Osore-yama volcano (world scale)
Terrain-type map of Osore-yama volcano (world scale)
Satellite/aerial-type map of Osore-yama volcano (region scale large)
Satellite/aerial-type map of Osore-yama volcano (region scale large)
Terrain-type map of Osore-yama volcano (region scale large)
Terrain-type map of Osore-yama volcano (region scale large)
Satellite/aerial-type map of Osore-yama volcano (region scale medium)
Satellite/aerial-type map of Osore-yama volcano (region scale medium)
Terrain-type map of Osore-yama volcano (region scale medium)
Terrain-type map of Osore-yama volcano (region scale medium)
Satellite/aerial-type map of Osore-yama volcano (region scale small)
Satellite/aerial-type map of Osore-yama volcano (region scale small)
Terrain-type map of Osore-yama volcano (region scale small)
Terrain-type map of Osore-yama volcano (region scale small)
Satellite/aerial-type map of Osore-yama volcano (local scale large)
Satellite/aerial-type map of Osore-yama volcano (local scale large)
Terrain-type map of Osore-yama volcano (local scale large)
Terrain-type map of Osore-yama volcano (local scale large)
Satellite/aerial-type map of Osore-yama volcano (local scale medium)
Satellite/aerial-type map of Osore-yama volcano (local scale medium)
Terrain-type map of Osore-yama volcano (local scale medium)
Terrain-type map of Osore-yama volcano (local scale medium)
Satellite/aerial-type map of Osore-yama volcano (local scale small)
Satellite/aerial-type map of Osore-yama volcano (local scale small)
Terrain-type map of Osore-yama volcano (local scale small)
Terrain-type map of Osore-yama volcano (local scale small)
Satellite/aerial-type map of Osore-yama volcano (scale of 10s of km)
Satellite/aerial-type map of Osore-yama volcano (scale of 10s of km)
Terrain-type map of Osore-yama volcano (scale of 10s of km)
Terrain-type map of Osore-yama volcano (scale of 10s of km)
Satellite/aerial-type map of Osore-yama volcano (scale of 20-40 km)
Satellite/aerial-type map of Osore-yama volcano (scale of 20-40 km)
Terrain-type map of Osore-yama volcano (scale of 20-40 km)
Terrain-type map of Osore-yama volcano (scale of 20-40 km)
Satellite/aerial-type map of Osore-yama volcano (scale of approx. 10-20 km)
Satellite/aerial-type map of Osore-yama volcano (scale of approx. 10-20 km)
Terrain-type map of Osore-yama volcano (scale of approx. 10-20 km)
Terrain-type map of Osore-yama volcano (scale of approx. 10-20 km)
Satellite/aerial-type map of Osore-yama volcano (scale of 5-10 km)
Satellite/aerial-type map of Osore-yama volcano (scale of 5-10 km)
Satellite/aerial-type map of Osore-yama volcano (scale of few kilometers)
Satellite/aerial-type map of Osore-yama volcano (scale of few kilometers)
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