Riangkaha, Indonesia

Full City Profile

66 ft Elevation 20 meters

80°F Avg Temperature 27°C

Riangkaha has a warm climate with an average annual temperature of 80°F (27°C). Winters average 81°F in January while summers reach 79°F in July. The area gets 357 sunny days per year. Annual precipitation totals 28.4 inches. The area receives 0.0 inches of snow annually.

Temperature

81°F Jan (27°C) 79°F Jul (26°C)

Annual Average	80.3°F
	49% above US avg
January Average	81°F (27°C)
July Average	79°F (26°C)
Sunny Days	357 days/yr

Geography

Elevation	66 ft (20 m)
Area	1,786.7 sq mi (4,627.5 km²)
Population Density	0/sq mi
Coordinates	-8.5469°N, 122.8418°W
Timezone	Asia/Makassar

Precipitation & Snow

Annual Rainfall 28.4"

25% below US avg

Snowfall 0.0"

Air Quality

Earthquake History

883 earthquakes (M2.5+) within 150 km since 1990. Strongest: M7.8. Most recent: M4.7 on Aug 25, 2025.

Dec 12, 1992	37 km WNW of Maumere, Indonesia	M7.8	104 km
Feb 27, 2015	150 km NNE of Maumere, Indonesia	M7.0	143 km
Apr 23, 2004	105 km WNW of Naisano Dua, Indonesia	M6.7	91 km
Oct 23, 1992	101 km SSE of Maumere, Indonesia	M6.2	107 km
Sep 4, 1993	110 km SSE of Maumere, Indonesia	M6.2	119 km
Jan 17, 1997	81 km NNW of Naisano Dua, Indonesia	M6.2	86 km
Dec 12, 1992	33 km WNW of Maumere, Indonesia	M6.1	101 km
Jan 15, 2006	97 km NNE of Maumere, Indonesia	M6.1	85 km
Aug 23, 2016	149 km N of Maumere, Indonesia	M6.0	147 km
Mar 2, 1993	37 km NNE of Maumere, Indonesia	M5.9	66 km
Jul 18, 1991	74 km NW of Maumere, Indonesia	M5.8	128 km
Dec 12, 1992	25 km WNW of Maumere, Indonesia	M5.7	92 km
Aug 26, 1995	63 km NNW of Ende, Indonesia	M5.7	145 km
Mar 24, 2024	85 km SE of Ende, Indonesia	M5.7	121 km
Sep 18, 1995	74 km WNW of Pante Makasar, Timor Leste	M5.7	111 km
Jul 25, 2023	53 km WNW of Pante Makasar, Timor Leste	M5.6	131 km
Jun 17, 1995	96 km ENE of Maumere, Indonesia	M5.6	37 km
May 1, 2003	165 km NNE of Maumere, Indonesia	M5.6	150 km
May 19, 1993	38 km NW of Maumere, Indonesia	M5.6	96 km
Jun 27, 2011	44 km SE of Maumere, Indonesia	M5.5	59 km

Source: USGS (M2.5+, 1990–2025)

Tsunami History

5 tsunamis recorded within 500 km. Highest wave on record: 26.2 m (86 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1992	FLORES SEA	Eruption + Earthquake	26.2 m	2,500	104 km
1928	FLORES SEA	Explosion	10.0 m	226	127 km
1979	LOMBLEN ISLAND [LEMBATA]	Meteorological	9.0 m	1,239	73 km
2021	FLORES SEA	Earthquake	0.6 m	—	127 km
1891	TIMOR SEA	Earthquake	—	—	137 km

Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.

Nearby Volcanoes

10 volcanoes within 200 km. Closest: Lewotobi (7 km).

Name	Type	Elevation	Last Eruption	Distance
Lewotobi	Stratovolcano(es)	1,703 m (5,587 ft)	2003	7 km
Ilimuda	Stratovolcano	881 m (2,890 ft)	Unknown	12 km
Leroboleng	Complex	1,095 m (3,593 ft)	2003	20 km
Iliboleng	Stratovolcano	1,659 m (5,443 ft)	1993	51 km
Ililabalekan	Stratovolcano	1,018 m (3,340 ft)	Unknown	59 km
Iliwerung	Complex	1,018 m (3,340 ft)	2013	80 km
Kelimutu	Complex	1,639 m (5,377 ft)	1968	115 km
Paluweh	Stratovolcano	875 m (2,871 ft)	2013	127 km
Iya	Stratovolcano	618 m (2,028 ft)	1969	137 km
Sirung	Complex	862 m (2,828 ft)	2015	142 km

Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.

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