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Muroran, Japan

Full City Profile

4.1 /5.0
A Great
96,197 Population 3,075/sq mi density
26 ft Elevation 8 meters
48°F Avg Temperature 9°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.1 / 5.0
$28,900 median income, 3.0% unemployment
A+
Affordability
5.0 / 5.0
$68,000 home value, $340/mo rent
Muroran experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 29°F in January while summers reach 65°F in July. The area gets 250 sunny days per year. Annual precipitation totals 47.3 inches. The area receives 9.8 inches of snow annually.

Temperature

29°F Jan (-2°C) 65°F Jul (18°C)
Annual Average47.5°F
12% below US avg
January Average29°F (-2°C)
July Average65°F (18°C)
Sunny Days250 days/yr

Geography

Elevation26 ft (8 m)
Area31.3 sq mi (81.0 km²)
Population Density3,075/sq mi
Coordinates42.3172°N, 140.9881°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 47.3"
25% above US avg
Snowfall 9.8"
Wettest Month (Aug) 7.17"
Driest Month (Feb) 2.09"

Air Quality

Earthquake History

961 earthquakes (M2.5+) within 150 km since 1990. Strongest: M6.5. Most recent: M5.1 on Aug 18, 2025.

Aug 7, 1993 69 km WNW of Kamiiso, Japan M6.5 102 km
Nov 26, 1991 33 km SSE of Shizunai-furukawach?, Japan M6.4 130 km
Jul 12, 1992 70 km ENE of Mutsu, Japan M6.2 129 km
Jun 11, 2023 20 km WSW of Biratori, Japan M6.2 78 km
Aug 24, 1992 9 km NNW of Honch?, Japan M6.2 47 km
Jun 8, 2015 74 km ENE of Mutsu, Japan M6.1 120 km
May 23, 2012 72 km E of Mutsu, Japan M5.9 142 km
May 5, 2023 68 km ENE of Mutsu, Japan M5.9 122 km
Apr 29, 2008 70 km ENE of Mutsu, Japan M5.8 129 km
Sep 13, 2010 68 km ENE of Mutsu, Japan M5.8 123 km
Jan 30, 1998 70 km ENE of Mutsu, Japan M5.8 128 km
Mar 7, 2017 62 km ENE of Mutsu, Japan M5.7 117 km
Apr 3, 2002 60 km ENE of Mutsu, Japan M5.7 112 km
Jan 11, 1995 45 km SSE of Shizunai-furukawach?, Japan M5.6 131 km
Apr 18, 2007 21 km E of Tomakomai, Japan M5.5 81 km
May 18, 2007 73 km ENE of Mutsu, Japan M5.5 115 km
Feb 28, 2009 37 km NW of Shizunai-furukawach?, Japan M5.5 97 km
Jul 8, 2014 13 km N of Shiraoi, Japan M5.5 49 km
Feb 14, 2002 70 km ENE of Mutsu, Japan M5.5 128 km
Jun 25, 2008 45 km SSE of Shizunai-furukawach?, Japan M5.5 131 km
Source: USGS (M2.5+, 1990–2025)

Hurricane History

2 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 1. Most recent: Higos (2002).

Year Name Category Closest
2002 Higos Category 1 205 km
1998 Vicki Category 1 250 km
Source: NOAA IBTrACS (Cat 1+, 1980–2026)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 8.0 m (26 ft).

Year Location Cause Max Wave Deaths Distance
1640 SE. HOKKAIDO ISLAND Explosion 8.0 m 700 37 km
1982 HOKKAIDO ISLAND Earthquake 1.3 m 110 114 km
1993 JAPAN Earthquake 0.2 m 102 km
1834 W. HOKKAIDO ISLAND Earthquake 114 km
1792 W. HOKKAIDO ISLAND Earthquake 135 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

12 volcanoes within 200 km. Closest: Kuttara (24 km).

Name Type Elevation Last Eruption Distance
Kuttara Stratovolcano(es) 549 m (1,801 ft) 1820 24 km
Toya Stratovolcano 733 m (2,405 ft) 2001 28 km
Hokkaido-Komagatake Stratovolcano 1,131 m (3,711 ft) 2000 38 km
Shikotsu Caldera 1,320 m (4,331 ft) 1979 52 km
Yoteizan Stratovolcano 1,888 m (6,194 ft) -1050 59 km
Esan Lava dome(s) 618 m (2,028 ft) 1874 59 km
Niseko Stratovolcano(es) 1,308 m (4,291 ft) -4900 68 km
Osorezan Stratovolcano 878 m (2,881 ft) 1787 116 km
Oshima-Oshima Stratovolcano 732 m (2,402 ft) 1790 161 km
Hakkodasan Stratovolcano(es) 1,585 m (5,200 ft) 1550 185 km
Tokachidake Stratovolcano(es) 2,077 m (6,814 ft) 2004 185 km
Iwakisan Stratovolcano 1,625 m (5,331 ft) 1863 193 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 29°F (-2°C) 2.6 in Coldest
February 29°F (-2°C) 2.1 in Driest
March 33°F (1°C) 2.3 in
April 42°F (6°C) 3.1 in
May 51°F (10°C) 3.7 in
June 57°F (14°C) 4.0 in
July 65°F (18°C) 5.7 in
August 69°F (21°C) 7.2 in Warmest, Wettest
September 64°F (18°C) 6.4 in
October 54°F (12°C) 4.0 in
November 43°F (6°C) 3.5 in
December 34°F (1°C) 2.8 in

Muroran has a seasonal temperature swing of 41°F / from 29°F in January to 69°F in August. Total annual precipitation is 47.3 inches, with August being the wettest month (7.2") and February the driest (2.1").

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