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More earthquake swarms have been detected at the world's largest active volcano. 

The U.S. Geological Survey's Hawaiian Volcano Observatory said Wednesday that Mauna Loa continues to be in a state of heightened unrest on the Big Island. 

The observatory detected 13 small-magnitude quakes in regions historically seismically active during periods of unrest on the volcano.

However, monitoring data shows no significant changes within the past 24 hours, the increase in activity does not suggest that a progression to an eruption is certain and there are no indications that an eruption is imminent.

HAWAII'S BIG ISLAND WARNED OF POSSIBLE 'LAVA DISASTER' AS HUGE VOLCANO RUMBLES

Volcano

FILE - A gaseous cloud rises from the crater of Mauna Loa, center, on the big island of Hawaii, April 4, 1984. The ground is shaking and swelling at Mauna Loa, the largest active volcano in the world, indicating that it could erupt. Scientists say they don't expect that to happen right away but officials on the Big Island of Hawaii are telling residents to be prepared in case it does erupt soon.  ((AP Photo/John Swart, File))

Scientists will continue to closely monitor Mauna Loa for changes. 

The observatory has more than 60 GPS stations taking measurements to estimate the location and amount of magma beneath the surface.

There’s also a thermal webcam at Mauna Loa’s summit and satellite radar.

Mauna Loa

Mauna Loa is seen from the Gilbert Kahele Recreation Area off Saddle Road on the Big Island of Hawaii on Oct. 27, 2022.  ((AP Photo/Megan Moseley))

The current unrest — also indicated by inflation of the summit — is most likely being driven by renewed input of magma 2 to 5 miles beneath the summit.

EARTHQUAKES SHAKE HAWAII'S MAUNA LOA VOLCANO DURING UNREST, CAUSE MINOR DAMAGE

Mauna Loa covers half of the island of Hawaii

Hawaii officials

Residents of Pahala, Hawaii, a remote town of about 1,400 on the south side of the Big Island, listen as Civil Defense Administrator Talmadge Magno speaks about the recent activity on Mauna Loa at the local gymnasium on Thursday, Oct. 27, 2022. ((AP Photo/Megan Moseley))

Eruptions there tend to produce fast lava flows that can impact communities on the east and west sides of the island.

Since its first well-documented eruption in 1843, the volcano has erupted 33 times, with its last eruption in 1984.

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Officials are warning residents to be prepared in case it erupts soon.

The Associated Press contributed to this report.