Volcano news & updates: Kilauea volcano (Big Island, Hawaii)
Kilauea volcano (Hawai'i): strong seismic swarm on Ka`oiki faults
Saturday Feb 25, 2012 08:42 AM | BY: T+P
Recent earthquakes at Kilauea volcano (as of 24 Feb 2012)An unusual seismic swarm is occurring near the summit of Kīlauea volcano, Hawai`i, and continues to increase as of today.
The Ka`oiki seismic swarm began about 5 km (3 mi) northwest of Halema`uma`u Crater on 21 February and has produced more than 1000 quakes so far.
Increased activity overnight included 4 magnitude 4+ earthquakes amongst more than 70 additional earthquakes in the past 24 hours. 78 earthquakes were strong enough to be located beneath Kilauea in the past day: 74 quakes were related to the earthquake swarm, 2 were within the upper east rift zone, and 2 were on south flank faults.
Some of the quakes were felt at the Hawai`i Volcano Observatory where the shaking caused books fall off shelves, and minor damage was reported at the Volcano Golf Course, which is the closest inhabited area located about 3 km from the earthquakes' epicentre. Many of these earthquakes were widely felt on-island, including at our Hawai`i office near Kīlauea's summit.
Swarms in this area typically indicate movement between Mauna Loa and Kīlauea volcanoes unrelated to magma migration, but continued long-term pressurization of Kīlauea's summit complicates the local stress field and may have some bearing on the current seismic activity. Similar swarms have occurred in 1990, 1993, 1997, and 2006, some of which lasted up to several weeks.
Links / Sources:
Links / Sources:
- Kilauea Status update (daily updates from HVO)
Kilauea volcano (Hawai'i) activity update: lava flows on and above pali, active lava lake at Halema'uma'u
Thursday, Feb 23, 2012
The Halema'uma'u lava lake continued to be active during the past week, rising and falling periodically. Lava is also visible at Pu'u 'O'o, mostly from the collapsed cone on the NE edge and a cone on the SE edge. ... [more]
Kilauea volcano (Hawai'i) activity update: active lava lake in Halema'uma'u crater, active lava flow field 6 km SE of Pu'u 'O'o near top of pali
Tuesday, Feb 14, 2012
The lava lake in the deep pit within Kilauea's Halema'uma'u Crater circulated and periodically rose and fell. Incandescence was visible on the NE and SE edges of the Pu'u 'O'o crater floor, and strongest from a small cone on the NE edge during 8-13 February. A web camera recorded incandescence above the pali on 8 and during 12-14 February. The SE vent issued short lava flows on 14 February. ... [more]
Saturday, Jan 21, 2012
The Hawaiian Volcano Observatory today celebrates 100 continuous years of monitoring at Kīlauea volcano with a Public Open House -- only Vesuvius has a longer record, dating back to 1841! In fact the first scientific monitoring in Hawai'i was conducted in 1911 by Frank Perret, an Honorary Assistant to the Vesuvius Observatory, in preparation for Thomas Jaggar to establish HVO in 1912. They are hosting many activities today in celebration, if you are in the Kīlauea area! ... [more]
Tuesday, Jan 03, 2012
After almost a week with no accessible lava, pressure returns to Kīlauea as seen in this link's plot of ground tilt. At the same time, lava flows are again accessible via an extreme, 8-mile round-trip hike with a steep climb to private property in Royal Gardens. The hike will get easier and less dangerous once this renewed pressure pushes lava back onto the coastal flats, so stay tuned! Contact us for details on current conditions and accessibility! [more]
Saturday, Dec 10, 2011
At 6:15pm on December 9, 2011, lava from the September 21st fissure first entered the ocean at East Ka'ili'ili in Hawai'i Volcanoes National Park, 4.5 miles from the end of Chain of Craters Rd, and 3.5 miles from Kalapana Gardens. Lava flows are also vigorously active all across the coastal plain, leaking from the newly formed lava tube, AND are visible flowing down the hillside in large rivers from a distance as well. Please contact us for more information on current accessibility! [more]