![]() The dense population of people living in the vicinity of this volcanic center has garnered much attention and the situation is complicated by evacuations during previous periods of unrest there which did not escalate to eruption.Įruptions in Hawaiʻi over the past five years have fortunately offered safe viewing, have not required evacuations, and have only minimally impacted infrastructure. In Italy, there is increased earthquake activity at Campi Flegrei, a caldera that includes part of the city of Naples. Individual volcanoes are also active in Chile, Ethiopia, Italy, Mexico, and Papua New Guinea.Įlsewhere in the world, volcanoes can also cause unease even when not erupting. Multiple volcanoes are active in the Democratic Republic of the Congo, Ecuador, Indonesia, Japan, The Philippines, and Russia. Here in the United States, Great Sitkin and Shishaldin are erupting in Alaska, generating lava flows and ash plumes in the remote Aleutian Islands. Though Hawaiʻi’s volcanoes currently aren’t erupting, other volcanoes around the world remain active. We expect to see changes to these monitoring parameters when any of Hawaiʻi’s active volcanoes begin to show signs of unrest. The rift zones of Kīlauea along with other active volcanoes in Hawaiʻi, including Mauna Loa, remain quiet. Right now, recent ground deformation south of Kīlauea summit is beginning to slow, but an increased number of earthquakes are being detected in this region due to a seismic swarm. The monitoring network continuously tracks activity beneath the surface despite the surface itself appearing still. HVO’s monitoring network helps us to evaluate the answers to these questions. HVO staff ask themselves questions such as how long will it be until a volcano erupts again? Where and when will the next eruption take place? However, because our volcanoes erupt so frequently, these quiet periods also come with a bit of unease. The longest period without any Kīlauea eruptions over the past 200 years was abnormally long and lasted 18 years!įor USGS Hawaiian Volcano Observatory staff, these non-eruptive periods offer a bit of respite from the flurry of activity that comes with responding to increased unrest or a new eruption. Looking back at Kīlauea’s eruptive history over the past couple hundred years, periods of weeks to months or even sometimes years between eruptions are relatively common. Prior to the recent summit eruptions, Kīlauea didn’t erupt for over two years following the large lower East Rift Zone eruption in 2018. Since 2020, there have been periods lasting weeks to several months between eruptions and during which there is no active lava on the surface. Though Kīlauea is one of Earth’s most active volcanoes, periods of time with no eruptive activity on the surface are not uncommon. The eruption lasted about six days and, like the four eruptions before it, filled in a portion of the summit that collapsed in 2018. This was the briefest of the five eruptions that have occurred at the summit of Kīlauea since 2020. Kīlauea’s most recent eruption stopped on Sept. ![]() A lava lake within Halemaʻumaʻu at that time gave the plume of volcanic gas above the eruption site an orange glow, as the moon rising to the east further illuminated the scene. Kīlauea summit was erupting during October 2021, when this photo was taken. And as October arrived this year, our night skies were dark, with no warm orange glow indicative of lava erupting on the surface. Here in Hawaiʻi nei, we don’t have the dramatically changing leaf colors and brisk temperatures that mark the arrival of Fall. Inflation, or ground surface swelling, at the summit of Kīlauea has nearly returned to the level seen shortly before the last eruption on September 10, when the volcano erupted for the first time in nearly three months, the USGS said.By the US Geological Survey Hawaiian Volcano Observatory scientists and affiliates Officials said “significant hazards” remained around Halemaʻumaʻu, including “crater wall instability, ground cracking and rockfalls that can be enhanced by earthquakes” in an area closed off from the public. Most of the earthquakes came from the ongoing seismic swarm in a region south of Kilauea’s summit caldera at depths of up to 2 miles beneath the surface, the observatory reported. The reported earthquakes beneath the highest point of Kīlauea, which is not erupting as of Friday, began Wednesday as the volcano started showing signs of elevated unrest, according to a USGS news release. Increased seismic activity from one of Hawaii’s – and Earth’s – most active volcanoes led to roughly 320 earthquakes in 24 hours, according to the United States Geological Survey’s Hawaiian Volcano Observatory.
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