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June 08, 2018

Slumping in Summit Area Triggering Additional Explosions, Ashfall

As the magma reservoir lowers and drains out (erupts) at the lower East Rift Zone, the summit area is slowly subsiding and slumping inward, which is triggering additional gas-driven explosions.
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June 06, 2018

No Tsunami After Series of Small Earthquakes Off Hamakua Coast

Further analysis separated the earthquakes which were all less than 4.0 in magnitude
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June 03, 2018

No Tsunami After 5.5 Earthquake at Kīlauea Summit

There is NO tsunami threat to Hawaii after a 5.5 (preliminary magnitude 5.8) earthquake reported at 3:51 p.m. on Sunday, June 3, 2018, in the summit region of the Kīlauea volcano, according to the Pacific Tsunami Warning Center.
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June 01, 2018

Volcano Discussion:  Is the Kīlauea Eruption a New Event?

Scientists at the Hawaii Volcanoes Observatory address Kīlauea’s current activity—what’s new and what’s not—starting with the two eruption sites: East Rift Zone and summit.
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May 30, 2018

No Tsunami Threat After 4+ Quake at Kīlauea Volcano Summit

There is NO tsunami threat to Hawaiʻi following a preliminary magnitude 4.5 earthquake reported at 10:54 a.m. on Wednesday, May 30, 2018 in the summit region of the Kīlauea volcano on the Big Island of Hawaiʻi.
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May 16, 2018

No Tsunami After 4+ Earthquake at Kīlauea Volcano Summit

There was no tsunami threat following a 4.4 (preliminary 4.2) magnitude earthquake reported at 8:31 a.m. on May 16, 2018 in the summit of Kīlauea Volcano.
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December 02, 2017

Did Aerial Bombing Stop the 1935 Mauna Loa Lava Flow?

Fearing that the flow would reach the headwaters of the Wailuku River, which supplied water for the town of Hilo, Jaggar called on the Army Air Service to bomb the lava flow source.
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November 07, 2017

No Tsunami Threat to Hawai‘i After 6.6 Papua New Guinea Quake

There is no tsunami threat to Hawaiʻi following a 6.6 preliminary magnitude earthquake reported at 11:27 a.m. HST on Tuesday, Nov. 7 off of Papua New Guinea.
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November 02, 2017

USGS Threat Rankings of Haleakalā, Hawaiʻi Volcanoes

USGS ranks Kīlauea, Mauna Loa, Hualālai, Haleakalā, Mauna Kea, and Lōʻihi from "very high threat potential” to "moderate threat potential."
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October 23, 2017

New Video on Kīlauea’s Summit Eruption Now Online

USGS has produced a documentary to tell the story of the eruption, and to share imagery of the inaccessible lava lake with the public.
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July 30, 2017

4.2 Earthquake Between Maui and Hawai‘i: Likely Caused by Weight of Islands

The 4.2 earthquake early Sunday morning in the ‘Alenuihāhā Channel, was likely due to bending of the oceanic plate from the weight of the island.
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July 27, 2017

Largest Hawai‘i Earthquake in Decade Offers Preparedness Reminder

The 5.3 magnitude quake on June 8, 2017, centered on the south flank of the Kīlauea Volcano, was the largest to strike Hawaiʻi in over a decade.
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June 21, 2017

4.5 Hawai‘i Quake Caused by Bending of Oceanic Plate From Weight of Island

There is no tsunami threat to Hawaiʻi after a prelim magnitude 4.4 earthquake reported at 10:09a on Wednesday, June 21, 2017 about 70 mi SW of Hilo, Hawaiʻi.
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May 03, 2017

The Mystery Haze of 1950: Vog By Another Name Would Look as Clear

The USGS explains the mystery haze that blanketed Honolulu in 1950 and how the term Vog came to be.
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March 23, 2017

No Tsunami Generated from 4.3 Kīlauea, Hawaiʻi Earthquake

There is no tsunami threat to Hawaiʻi after a preliminary magnitude 4.3 earthquake reported at 1027 a.m. on Thursday, March 23, 2017 at Kīlauea.
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