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Tomioka, Japan

Full City Profile

4.1 /5.0
A Great
7,114 Population 56/sq mi density
3 ft Elevation 1 meters
61°F Avg Temperature 16°C
A
Overall
4.1 / 5.0
Strong
B
Economy
3.2 / 5.0
$28,200 median income, 2.5% unemployment
A+
Affordability
5.0 / 5.0
$70,000 home value, $350/mo rent
Tomioka enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 42°F in January while summers reach 79°F in July. The area gets 196 sunny days per year. Annual precipitation totals 79.1 inches. The area receives 0.0 inches of snow annually.

Temperature

42°F Jan (6°C) 79°F Jul (26°C)
Annual Average61.0°F
13% above US avg
January Average42°F (6°C)
July Average79°F (26°C)
Sunny Days196 days/yr

Geography

Elevation3 ft (1 m)
Area127.9 sq mi (331.1 km²)
Population Density56/sq mi
Coordinates32.5186°N, 130.0359°W
TimezoneAsia/Tokyo

Precipitation & Snow

Annual Rainfall 79.1"
108% above US avg
Snowfall 0.0"
Wettest Month (Jun) 14.29"
Driest Month (Dec) 2.68"

Air Quality

Earthquake History

306 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.0. Most recent: M4.5 on Aug 12, 2025.

Apr 15, 2016 6 km ESE of Kumamoto, Japan M7.0 74 km
Dec 2, 1996 17 km SW of Miyazaki, Japan M6.7 145 km
Mar 20, 2005 28 km NNW of Maebaru-ch??, Japan M6.6 144 km
Jun 11, 2006 15 km S of Tsukawaki, Japan M6.3 124 km
Apr 14, 2016 2 km SSE of Kumamoto, Japan M6.2 69 km
May 13, 1997 1 km WNW of Satsumasendai, Japan M6.1 81 km
Mar 26, 1997 16 km NE of Satsumasendai, Japan M6.1 76 km
Apr 14, 2016 5 km ENE of Uto, Japan M6.0 67 km
Apr 5, 2009 10 km N of Miyazaki, Japan M5.8 142 km
Apr 15, 2016 6 km S of Kikuchi, Japan M5.7 85 km
Apr 18, 2016 8 km NNE of Aso, Japan M5.5 114 km
Apr 15, 2016 10 km NE of Aso, Japan M5.5 118 km
Apr 2, 1997 19 km W of Satsumasendai, Japan M5.5 77 km
Apr 19, 2005 8 km NNW of Maebaru-ch??, Japan M5.5 125 km
Feb 12, 1994 4 km WSW of ?kuchi-shinohara, Japan M5.4 72 km
Apr 14, 2016 14 km ESE of Kumamoto, Japan M5.4 78 km
Nov 4, 2002 Kyushu, Japan M5.4 143 km
Apr 15, 2016 5 km WSW of Aso, Japan M5.4 102 km
Apr 15, 2016 13 km ESE of Kumamoto, Japan M5.3 79 km
Apr 14, 2016 4 km NNE of Uto, Japan M5.3 65 km
Source: USGS (M2.5+, 1990-2025)

Hurricane History

69 hurricanes (Cat 1+) within 500 km since 1980. Strongest: Category 3. Most recent: Shanshan (2024).

Year Name Category Closest
2024 Shanshan Category 3 25 km
2022 Nanmadol Category 3 35 km
2022 Hinnamnor Category 2 259 km
2020 Haishen Category 3 103 km
2020 Maysak Category 2 213 km
2019 Francisco Category 1 68 km
2018 Prapiroon Category 1 138 km
2018 Trami Category 1 215 km
2017 Noru Category 1 210 km
2016 Malakas Category 3 153 km
2016 Chaba Category 1 276 km
2016 Namtheun Category 1 192 km
2015 Goni Category 3 28 km
2014 Halong Category 1 269 km
2014 Neoguri Category 1 291 km
2013 Danas Category 3 194 km
2012 Sanba Category 3 202 km
2012 Damrey Category 1 215 km
2011 Ma-on Category 1 270 km
2007 Usagi Category 3 147 km
Source: NOAA IBTrACS (Cat 1+, 1980-2026)

Tsunami History

10 tsunamis recorded within 500 km. Highest wave on record: 55.0 m (180 ft).

Year Location Cause Max Wave Deaths Distance
1792 SHIMABARA BAY, KYUSHU ISLAND Landslide 55.0 m 15,000 36 km
1780 SW. KYUSHU ISLAND Astronomical 6.0 m - 120 km
1914 SEIKAIDO Eruption 3.0 m 63 120 km
1996 SEA OF JAPAN Earthquake 0.2 m - 145 km
1828 AMAKUSA SEA Earthquake - - 16 km
1781 SW. KYUSHU ISLAND Astronomical - 38 120 km
1780 SW. KYUSHU ISLAND Astronomical - - 120 km
1619 YATSUSHIRO, JAPAN Earthquake - - 53 km
766 N. KAGOSHIMA BAY Astronomical - - 120 km
744 SW. KYUSHU ISLAND Earthquake - 1,520 46 km
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

10 volcanoes within 200 km. Closest: Unzendake (37 km).

Name Type Elevation Last Eruption Distance
Unzendake Complex 1,483 m (4,865 ft) 1996 37 km
Yonemaru-Sumiyoshiike Maar(s) 40 m (131 ft) -6200 98 km
Kirishimayama Shield 1,700 m (5,577 ft) 2018 101 km
Asosan Caldera 1,592 m (5,223 ft) 2020 108 km
Fukue Shield(s) 315 m (1,033 ft) -400 112 km
Aira Caldera 1,117 m (3,665 ft) 2020 118 km
Kujusan Stratovolcano(es) 1,791 m (5,876 ft) 1996 130 km
Yufu-Tsurumi Lava dome(s) 1,584 m (5,197 ft) 867 152 km
Ata Caldera(s) 924 m (3,031 ft) 885 153 km
Kikai Caldera 704 m (2,310 ft) 2020 194 km
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

Monthly Weather

Month Avg Temperature Precipitation Summary
January 42°F (6°C) 3.0 in Coldest
February 44°F (7°C) 3.5 in
March 50°F (10°C) 5.3 in
April 58°F (15°C) 6.9 in
May 65°F (19°C) 7.8 in
June 72°F (22°C) 14.3 in Wettest
July 79°F (26°C) 13.1 in
August 81°F (27°C) 7.8 in Warmest
September 75°F (24°C) 7.8 in
October 65°F (19°C) 3.8 in
November 56°F (13°C) 3.2 in
December 46°F (8°C) 2.7 in Driest

Tomioka has a seasonal temperature swing of 38°F / from 42°F in January to 81°F in August. Total annual precipitation is 79.1 inches, with June being the wettest month (14.3") and December the driest (2.7").

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