Posted by: Anna Webb | July 3, 2009

Seismic Activity Increasing Once Again


Mauna Loa: Earth's Largest Active Shield Volcano

Mauna Loa: Earth's Largest Active Shield Volcano

Seismic Activity is on the rise again, primarily concentrated at the Halema’uma’u Crater but also scattered toward Mauna Loa and southwestward toward the Pahala area.

While minor quake activity continues within the Pu’u’O’o vent and dotting the area leading to the current lava ocean entry point in Lower Puna, activity has increased in the Volcanoes National Park area. Two to three days ago Big Island earthquakes numbered around 35 occurring within the past two weeks. This evening there are 52 on the earthquake map. In comparison, in March of 2008 just prior to the flow shift at the Pu’u’O’o vent and the increased emissions at the Halema’uma’u crater the number of earthquakes on the Big Island peaked at about 140.

Pali in Volcanoes National Park

Pali in Volcanoes National Park

In addition, a rare Maui quake measuring 3.5 on the Richter scale occurred 2 miles from Makawao last Sunday, June 28th, in the North Central area of the island.

Fortunately it’s nothing major, so far, but it’s always worth keeping watch when they begin increasing. Interestingly, the Pacific Ring of Fire was flashing like a Christmas Tree this evening, as well. 

Click on the links below to view recent Big Island and Global earthquake activity.

Hawaii Earthquake Map

Global Seismic Monitor


  1. We haven’t been feeling them over here, Anna, but I keep a link to the USGS site and keep up with the shakes there. I hadn’t seen the Ring of Fire lately…WOW!


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