Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Mauna Loa
The low-angle slopes of snow-capped Mauna Loa shield volcano give a deceptive perception of the size of the world's largest active volcano. Mauna Loa rises nearly 9 km from the sea floor to an altitude of 4170 m. Mauna Loa's elongated profile was created by repeated eruptions of thin lava flows, primarily from fissure vents along NE- and SW-trending rift zones. Almost 90% of the volcano's surface area consists of lava flows less than 4000 years old. Photo by Richard Fiske (Smithsonian Institution).
Volcano Number:332020
Volcano Name:Mauna Loa
Country:United States
Volcano Type:Shield
Last Eruption:1984
Elevation:4170m
Tectonic Setting:Intraplate / Oceanic crust (< 15 km)
Pop. within 5km:45
Pop. within 10km:45
Pop. within 30km:1906
Pop. within 100km:175315
Latitude:19.475
Longitude:-155.608



Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
332020 Mauna Loa 10120 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -2150
332020 Mauna Loa 10121 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -8050
332020 Mauna Loa 10122 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -7850
332020 Mauna Loa 10123 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -7550
332020 Mauna Loa 10124 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -7350
332020 Mauna Loa 10125 Confirmed Eruption 0 NE and SW rift zones Radiocarbon (uncorrected) -7150
332020 Mauna Loa 10126 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -6650
332020 Mauna Loa 10127 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) -6550
332020 Mauna Loa 10128 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -6250
332020 Mauna Loa 10129 Confirmed Eruption 0 NE and SW rift zones Radiocarbon (uncorrected) -5850
332020 Mauna Loa 10130 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -5650
332020 Mauna Loa 10131 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -5350
332020 Mauna Loa 10132 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -4250
332020 Mauna Loa 10133 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -3750
332020 Mauna Loa 10134 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -3350
332020 Mauna Loa 10135 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -3250
332020 Mauna Loa 10136 Confirmed Eruption 0 NE and SW rift zones Radiocarbon (uncorrected) -2750
332020 Mauna Loa 10137 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) -2350
332020 Mauna Loa 10138 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -2250
332020 Mauna Loa 10139 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) -2050
332020 Mauna Loa 10140 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -2000
332020 Mauna Loa 10141 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -1900
332020 Mauna Loa 10142 Confirmed Eruption 0 NW and SW rift zones Radiocarbon (uncorrected) -1800
332020 Mauna Loa 10143 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -1750
332020 Mauna Loa 10144 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -1700
332020 Mauna Loa 10145 Confirmed Eruption 0 NE and SW rift zones Radiocarbon (uncorrected) -1650
332020 Mauna Loa 10146 Confirmed Eruption 0 Mokuaweoweo and NE rift zone Radiocarbon (uncorrected) -1300
332020 Mauna Loa 10147 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) -950
332020 Mauna Loa 10148 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -600
332020 Mauna Loa 10149 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -500
332020 Mauna Loa 10150 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) -400
332020 Mauna Loa 10151 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -300
332020 Mauna Loa 10152 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) -200
332020 Mauna Loa 10153 Confirmed Eruption 0 SE rift zone Radiocarbon (uncorrected) -80
332020 Mauna Loa 10154 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) -60
332020 Mauna Loa 10155 Confirmed Eruption 0 NE and SW rift zones Radiocarbon (uncorrected) -30
332020 Mauna Loa 10156 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 50
332020 Mauna Loa 10157 Confirmed Eruption 0 SE rift zone Radiocarbon (uncorrected) 100
332020 Mauna Loa 10158 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 350
332020 Mauna Loa 10159 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 450
332020 Mauna Loa 10160 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 480
332020 Mauna Loa 10161 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 550
332020 Mauna Loa 10162 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 600
332020 Mauna Loa 10163 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 630
332020 Mauna Loa 10164 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 680
332020 Mauna Loa 10165 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 810
332020 Mauna Loa 10166 Confirmed Eruption 0 Mokuaweoweo and NW flank Radiocarbon (uncorrected) 830
332020 Mauna Loa 10167 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 940
332020 Mauna Loa 10168 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1040
332020 Mauna Loa 10169 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1070
332020 Mauna Loa 10170 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) 1130
332020 Mauna Loa 10171 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1170
332020 Mauna Loa 10172 Confirmed Eruption 0 NE rift zone and Mokuaweoweo Radiocarbon (uncorrected) 1190
332020 Mauna Loa 10173 Confirmed Eruption 0 SW rift zone Radiocarbon (uncorrected) 1310
332020 Mauna Loa 10174 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1360
332020 Mauna Loa 10175 Confirmed Eruption 0 NE rift zone and Mokuaweoweo Radiocarbon (uncorrected) 1370
332020 Mauna Loa 10176 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1390
332020 Mauna Loa 10177 Confirmed Eruption 0 NE rift zone and NW flank Radiocarbon (uncorrected) 1440
332020 Mauna Loa 10178 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1470
332020 Mauna Loa 10179 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1500
332020 Mauna Loa 10180 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1510
332020 Mauna Loa 10181 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1540
332020 Mauna Loa 10182 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1640
332020 Mauna Loa 10183 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1650
332020 Mauna Loa 10184 Confirmed Eruption 0 NW flank Radiocarbon (uncorrected) 1680
332020 Mauna Loa 10185 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1685
332020 Mauna Loa 10186 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 1730
332020 Mauna Loa 10187 Confirmed Eruption 0 North flank (2380 m) and SW rift zone? Historical Observations 1750
332020 Mauna Loa 10188 Confirmed Eruption 0 Mokuaweoweo and adjacent vents Historical Observations 1832/6/20 1832/7/15
332020 Mauna Loa 10189 Confirmed Eruption 0 North flank, Mokuaweoweo and NE rift Historical Observations 1843/1/9 1843/4/10
332020 Mauna Loa 10190 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1849
332020 Mauna Loa 10191 Confirmed Eruption 0 Mokuaweoweo and SW rift zone Historical Observations 1851/8/8 1851/8/11
332020 Mauna Loa 10192 Confirmed Eruption 2 NE rift zone (2560 m) and Mokuaweoweo Historical Observations 1852/2/17 1852/3/11
332020 Mauna Loa 10193 Confirmed Eruption 1 NE rift zone (3200 m) and Mokuaweoweo Historical Observations 1855/8/11 1856
332020 Mauna Loa 10194 Confirmed Eruption 1 North flank (2800 m) and Mokuaweoweo Historical Observations 1859/1/23 1859/11/25
332020 Mauna Loa 10195 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1865/12/30 1866/4/29
332020 Mauna Loa 10196 Confirmed Eruption 2 SW rift zone (1000 m) and Mokuaweoweo Historical Observations 1868/3/27 1868/4/22
332020 Mauna Loa 10197 Uncertain Eruption 0 Mokuaweoweo 1870/1/1 1870/1/15
332020 Mauna Loa 10198 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1871/8/10 1871/8/30
332020 Mauna Loa 10199 Confirmed Eruption 1 Mokuaweoweo Historical Observations 1872/8/9 1872
332020 Mauna Loa 10200 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1873/1/6 1873/1/7
332020 Mauna Loa 10201 Confirmed Eruption 1 Mokuaweoweo Historical Observations 1873/4/20 1874/10/19
332020 Mauna Loa 10202 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1875/1/10 1875/2/9
332020 Mauna Loa 10203 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1875/8/11 1875/8/18
332020 Mauna Loa 10204 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1876/2/13 1876/2/14
332020 Mauna Loa 10205 Confirmed Eruption 0 Mokuaweoweo, submarine west flank Historical Observations 1877/2/14 1877/2/24
332020 Mauna Loa 10206 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1879/3/9 1879/3/9
332020 Mauna Loa 10207 Confirmed Eruption 1 Mokuaweoweo Historical Observations 1880/5/1 1880/5/6
332020 Mauna Loa 10208 Confirmed Eruption 1 NE rift zone (3170 m) Historical Observations 1880/11/5 1881/8/10
332020 Mauna Loa 10209 Confirmed Eruption 0 SW rift zone (1740 m) and Mokuaweoweo Historical Observations 1887/1/16 1887/1/28
332020 Mauna Loa 10210 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1892/11/30 1892/12/3
332020 Mauna Loa 10211 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1896/4/21 1896/5/6
332020 Mauna Loa 10212 Confirmed Eruption 1 NE rift zone (3260 m) and Mokuaweoweo Historical Observations 1899/7/1 1899/7/23
332020 Mauna Loa 10213 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1903/9/1 1903/12/7
332020 Mauna Loa 10214 Confirmed Eruption 0 SW rift zone (1890 m) and Mokuaweoweo Historical Observations 1907/1/9 1907/1/24
332020 Mauna Loa 10215 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1914/11/25 1915/1/11
332020 Mauna Loa 10216 Confirmed Eruption 0 SW rift zone (3000 and 2250 m) Historical Observations 1916/5/19 1916/5/30
332020 Mauna Loa 10217 Confirmed Eruption 0 SW rift zone (3450 and 2350 m) Historical Observations 1919/9/26 1919/11/5
332020 Mauna Loa 10218 Confirmed Eruption 0 SW rift (2320 m) Historical Observations 1926/4/10 1926/4/28
332020 Mauna Loa 10219 Confirmed Eruption 0 Mokuaweoweo Historical Observations 1933/12/2 1933/12/18
332020 Mauna Loa 10220 Confirmed Eruption 0 NE rift zone (3690 m) and Mokuaweoweo Historical Observations 1935/11/21 1936/1/2
332020 Mauna Loa 10221 Confirmed Eruption 0 Mokuaweoweo and SW rift zone Historical Observations 1940/4/7 1940/8/18
332020 Mauna Loa 10222 Confirmed Eruption 0 NE rift zone (2800 m) and Mokuaweoweo Historical Observations 1942/4/26 1942/5/10
332020 Mauna Loa 10223 Confirmed Eruption 0 Mokuaweoweo and SW rift zone Historical Observations 1949/1/6 1949/5/31
332020 Mauna Loa 10224 Confirmed Eruption 0 SW rift zone (2440 m) Historical Observations 1950/6/1 1950/6/23
332020 Mauna Loa 10225 Confirmed Eruption 0 Mokuaweoweo and NE and SW rift zones, Historical Observations 1975/7/5 1975/7/6
332020 Mauna Loa 10226 Confirmed Eruption 0 Mokuaweoweo, SW and NE rift zones Historical Observations 1984/3/25 1984/4/15
332020 Mauna Loa 14062 Confirmed Eruption 0 SE rift zone Radiocarbon (uncorrected) 150
332020 Mauna Loa 14063 Confirmed Eruption 0 Mokuaweoweo Radiocarbon (uncorrected) 200
332020 Mauna Loa 20579 Confirmed Eruption 0 NE rift zone Radiocarbon (uncorrected) 300
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Emission ID SO2 Kilotons Start Date End Date
270 1197 1984/03/25 1984/03/25


Data from the Earthchem Portal
Sorry. No data exist for this volcano in the EarthChem Portal.


Data from the SESAR Database


Data from the MaGa Database
Sorry. No data exist for this volcano in the MaGa database.