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Mauna Loa volcano with gentle slopes typical of a shield volcano.
Mauna Loa volcano with gentle slopes typical of a shield volcano.

Mauna Loa activity update:
Friday, Sep 18, 2020
Middle part of the volcano´s Southwest Rift Zone (image: HVO)
During the past week the Hawaiian Volcano Observatory (HVO) recorded 67 small-magnitude earthquakes on the volcano's summit and upper-elevation flanks. Most of these earthquakes occurred at shallow depths of less than 8 km (~5 miles) below ground level. ... read all
Thursday, Aug 27, 2020
Thermal image at Mauna Loa at northwest rim captured yesterday (image: HVO)
During the past week the Hawaiian Volcano Observatory (HVO) recorded 144 small-magnitude earthquakes below the volcano's summit and upper-elevation flanks. Most of these earthquakes occurred at shallow depths of less than 8 km (~5 miles) below ground level. ... read all
 

Mauna Loa volcano

Shield volcano 4170 m / 13,681 ft, Big Island, Hawai'i, 19.48°N / -155.61°W
Nearby recent earthquakes (within 30km radius):
Earthquake list: past 7 days, magnitude -0.8 or higher (19 quakes)
Updated: Sat, 19 Sep 15:44 UTC (GMT)
Quake statistics | Yesterday
Look up past earthquakes:
Show quakes
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Depth and magnitude of quakes versus time plot

Earthquake depth plot

Earthquake list

TimeMag. / DepthDistanceLocationMapSource
Sat, 19 Sep 2020 (7 earthquakes)
Sat, 19 Sep 12:15 UTCM 2.1 / 1.9 km - [info]Mauna Loa (3 km) - Big Island, Hawai'i 28 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Sat, 19 Sep 12:09 UTCM 1.8 / 0.3 km - [info]Mauna Loa (1 km) - Big Island, Hawai'i 27 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Sat, 19 Sep 11:57 UTCM 2.0 / 0.2 km - [info]Mauna Loa (7 km) - Big Island, Hawai'i 22 Km ENE of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Sat, 19 Sep 10:53 UTCM 2.7 / 2.8 km - [info]Mauna Loa (5 km) - Big Island, Hawai'i 27 Km E of Honaunau-Napoopoo, Hawaii, USA
I FELT IT
[Map]
USGS
Sat, 19 Sep 08:02 UTCM 2.3 / 17.6 km - [info]Mauna Loa (16 km) - Big Island, Hawai'i Island of Hawaii, Hawaii, USA
[Map]
USGS
Sat, 19 Sep 04:48 UTCM 2.0 / 3.5 km - [info]Mauna Loa (5 km) - Big Island, Hawai'i 21 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Sat, 19 Sep 03:34 UTCM 2.4 / 1.2 km - [info]Mauna Loa (8 km) - Big Island, Hawai'i 26 Km ESE of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Fri, 18 Sep 2020
Fri, 18 Sep 21:31 UTCM 1.3 / 1.1 km - [info]Mauna Loa (2 km) - Big Island, Hawai'i 29 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Fri, 18 Sep 14:14 UTCM 1.8 / 0.1 km - [info]Mauna Loa (2 km) - Big Island, Hawai'i 28 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Fri, 18 Sep 01:57 UTCM 1.3 / 1.6 km - [info]Mauna Loa (11 km) - Big Island, Hawai'i 28 Km W of Volcano, Hawaii, USA 1 report
[Map]
USGS
Thu, 17 Sep 2020
Thu, 17 Sep 22:34 UTCM 1.9 / 1.6 km - [info]Mauna Loa (2 km) - Big Island, Hawai'i 28 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Thu, 17 Sep 18:49 UTCM 1.4 / 5.7 km - [info]Mauna Loa (13 km) - Big Island, Hawai'i 26 Km W of Volcano, Hawaii, USA
[Map]
USGS
Thu, 17 Sep 15:04 UTCM 1.6 / 3.7 km - [info]Mauna Loa (8 km) - Big Island, Hawai'i 22 Km ENE of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Thu, 17 Sep 13:00 UTCM 2.6 / 1.8 km - [info]Mauna Loa (5 km) - Big Island, Hawai'i 21 Km E of Honaunau-Napoopoo, Hawaii, USA
I FELT IT
[Map]
USGS
Thu, 17 Sep 10:33 UTCM 2.2 / 1.2 km - [info]Mauna Loa (4 km) - Big Island, Hawai'i 26 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Wed, 16 Sep 2020
Wed, 16 Sep 18:12 UTCM 1.8 / 0.7 km - [info]Mauna Loa (5 km) - Big Island, Hawai'i 26 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Wed, 16 Sep 06:02 UTCM 1.4 / 0.6 km - [info]Mauna Loa (6 km) - Big Island, Hawai'i 20 Km E of Honaunau-Napoopoo, Hawaii, USA
[Map]
USGS
Tue, 15 Sep 2020
Tue, 15 Sep 17:16 UTCM 1.9 / 3.4 km - [info]Mauna Loa (6 km) - Big Island, Hawai'i 22 Km ENE of Honaunau-Napoopoo, Hawaii (USA)
[Map]
USGS
Mon, 14 Sep 2020
Mon, 14 Sep 18:04 UTCM 1.8 / 7.2 km - [info]Mauna Loa (17 km) - Big Island, Hawai'i 14 Km NE of Honaunau-Napoopoo, Hawaii (USA)
[Map]
USGS
Estimated combined seismic energy released: 2.2 x 109 joules (622 kilowatt hours, equivalent to 0.535 tons of TNT) [learn more]

Earthquake statistics

Number of earthquakes vs time:

Past 24 hrs:
Number of quakes and energy past 24 hours
Past 30 days:
Number of quakes and energy past 30 days
Past 90 days:
Number of quakes vs time
Magnitude distribution and energy released:
Past 24 hrs:
Number of quakes and energy vs magnitude past 24 hrs Magnitudes of quakes and energy vs time past 24 hrs
Past 7 days:
Number of quakes and energy vs magnitude past 7 days Magnitudes of quakes and energy vs time past 7 days
Past 30 days:
Number of quakes and energy vs magnitude past 30 days Magnitudes of quakes and energy vs time past 30 days
 

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