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Posts Tagged ‘KILAUEA STATUS REPORT’

KILAUEA VOLCANO: Lava Erupting Intermittently from 8 Fissures

Posted by feww on May 6, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT

USGS –  Saturday, May 5, 2018, 11:42 PM HST (Sunday, May 6, 2018, 09:42 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE

Lower East Rift Zone Eruption

The intermittent eruption of lava in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano continues. Fissure 7 stopped erupting in mid-afternoon. A new fissure erupted this evening near fissures 2 and 7, and lava fountains reached as high as about 70 m (230 ft). Early this morning, new ground cracks were reported on Highway 130, but no heat or escaping steam was subsequently observed.

Seismicity and deformation are consistent with continued accumulation of magma within the rift zone.

Residents should remain informed and heed Hawaii County Civil Defense closures, warnings, and messages (http://www.hawaiicounty.gov/active-alerts).

For maps showing the locations of eruption features, please see https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

For information on volcanic air pollution, please see: http://www.ivhhn.org/vog/

HVO geologists will be in the area overnight to track and report to Hawaii County Civil Defense on the activity, and other scientists are closely tracking the volcano’s overall activity using various monitoring data streams.

Kīlauea Volcano Summit

Tiltmeters at the summit of Kīlauea Volcano continue to record the deflationary trend of the past several days. Satellite InSAR data show that between April 23 and May 5, 2018, the summit caldera floor subsided about 10 cm (4 in). Corresponding to this deflationary trend, the summit lava lake level in Overlook crater has dropped about 128 m (518 ft) below the crater rim since April 30. Rockfalls from the crater walls into the retreating lake produced ashy plumes above Halemaumau crater today, resulting in light ashfall in the summit area. Rockfalls and ashy plumes are expected to continue as the lake level drops.

Earthquake activity in the summit increased in the past 2 days, coincident with the magnitude-6.9 earthquake on May 4 beneath the south flank of Kīlauea. In the past two days, about 152 magnitude-2 and magnitude-3 earthquakes occurred at depths less than 5 km (3 miles) beneath the summit area. Twenty two magnitude 3 earthquakes were recorded. These earthquakes are related to the ongoing subsidence of the summit area and beneath the south flank of the volcano.

View of new fissure from Luana Street near fissure 2 and 7, Leilani Estates


A new fissure erupted this evening near fissures 2 and 7, beginning with small lava spattering at about 8:44 p.m. HST. By 9:00 p.m., lava fountains as high as about 70 m (230 ft) were erupting from the fissure. [USGS/HVO]

Kīlauea Volcano lower East Rift Zone eruption


Left: At 07:45 a.m. HST, today, lava from fissure 7 slowly advanced to the northeast on Hookapu Street in Leilani Estates subdivision on Kīlauea Volcano’s lower East Rift Zone. A map showing the location of the fissures is posted on HVO’s website at https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html. Right: At 12:26 p.m. HST today, a crack opened on Pohoiki Road just east of Leilani Street in the Leilani Estates subdivsion.  [USGS/HVO]

Nightmare on Leilani and Makamae Streets 


A panoramic view of fissure 7 from the intersection of Leilani and Makamae Streets in the Leilani Estates subdivision. This photo was taken at 06:01 a.m. HST today.  [USGS/HVO]

FIRE-EARTH themes for the eruption photos are available via FIRE-EARTH PULSARS.

Ongoing Seismicity

M4.6 44km SSE of Volcano, Hawaii   –  8.7 km
2018-05-05 03:30:15 (UTC) 

M4.7 – 20km SE of Leilani Estates, Hawaii   –  10.1 km
2018-05-05 01:20:27 (UTC) 

M5.3 – 16km E of Pahala, Hawaii  –  8.9 km
2018-05-05 00:37:10 (UTC)

M4.8 – 8km WSW of Volcano, Hawaii   –  2.7 km
2018-05-04 22:48:19 (UTC)

M4.6 – 13km S of Volcano, Hawaii   –   7.7 km
2018-05-04 22:42:42 (UTC)

M4.6 – 17km S of Volcano, Hawaii  –  7.9 km
2018-05-04 22:37:18 (UTC)

M6.9 – 16km SW of Leilani Estates, Hawaii   –  5.0 km
2018-05-04 22:32:55 (UTC)

M5.4 – 18km SW of Leilani Estates, Hawaii    –   6.9 km
2018-05-04 21:32:44 (UTC)

M5.0 – 18km S of Fern Acres, Hawaii  –  6.9 km
2018-05-03 20:30:56 (UTC)

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KILAUEA: Eruption of lava in the Leilani Estates continues

Posted by feww on May 5, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT  – USGS

Friday, May 4, 2018, 4:04 PM HST (Saturday, May 5, 2018, 02:04 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE

Eruption of lava in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano continues. Several additional eruptive fissures or vents – each several hundred yards long – have opened over the past day. No significant lava flows have yet formed. Spatter and lava are accumulating primarily within a few tens of yards of the vent.

The sixth and most recent fissure is on the eastern edge of the subdivision. Not all fissure vents remain active and no far-traveled lava flows have formed.

For maps showing the locations of these features, please see https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

HVO geologists will be in the area overnight to track additional activity that may occur, and other scientists are closely tracking the volcano’s overall activity using various monitoring data streams.

Seismicity and deformation are consistent with continued accumulation of magma within the rift zone. Additional outbreaks of lava are expected.

Residents should remain informed and heed Hawaii County Civil Defense messages (http://www.hawaiicounty.gov/active-alerts).


ABOVE: A new lava fissure (Fissure 2) commenced around 1:00 am HST on Kīlauea Volcano’s lower East Rift Zone on Makamae and Leilani Streets in the Leilani Estates subdivision. Spatter was being thrown roughly 30 m (about 100 ft) high at the time of this photo. Copious amounts of sulfur dioxide gas, which should be avoided, is emitted from active fissures. The eruption is dynamic and changes could occur with little warning. TOP: Steaming cracks at 5:57 a.m. HST in Leilani Estates subdivision, moments before Fissure 3 opened up on Kaupili Street. [USGS/HVO]


Fissure 3 at Leilani and Kaupili Streets in Leilani Estates subdivision at 8:07 a.m. HST today. Lava on the road was approximately 2 m (about 2 yd) thick. [USGS/HVO]

FIRE-EARTH theme for the eruption photos is available via FIRE-EARTH PULSARS.

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KILAUEA VOLCANO – HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT

Posted by feww on May 4, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey

Thursday, May 3, 2018, 10:13 PM HST (Friday, May 4, 2018, 08:13 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE

The eruption in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano that began in late afternoon ended by about 6:30 p.m. HST. Lava spatter and gas bursts erupted from the fissure for about two hours, and lava spread a short distance from the fissure, less than about 10 m (33 ft).

At this time, the fissure is not erupting lava and no other fissures have erupted.

HVO geologists are working near the fissure overnight to track additional activity that may occur, and other scientists are closely tracking the volcano’s overall activity.

Recent Observations

  • Sulfur gas is quite noticeable around the fissure…
  • Lava flows did not advance more than about 10 m (33 ft) from the fissure. The flows are no longer active.
  • No other fissures have erupted from along the rift zone currently.
  • Tiltmeters at Kīlauea’s summit continue to record deflationary tilt and the lava lake level has dropped about 37 m (121 ft) in the past 24 hours.
  • Seismic activity has not changed significantly during the day or since the brief fissure eruption.


TOP: A view of Pu‘u ‘Ō‘ō from the east, shortly after a small collapse. The coating of red ash on the south side of the cone (left side of photo) is evident. ABOVE: At 10:31 a.m. HST, while HVO geologists were working on Pu‘u ‘Ō‘ō, a magnitude-5.0 earthquake shook the ground around the cone. Moments later, a collapse occurred in the crater of Pu‘u ‘Ō‘ō, creating a robust, reddish-brown ash plume. [Source: volcanoes.usgs.gov]


At 10:30 HST (May 3), ground shaking from a preliminary magnitude-5.0 earthquake south of Pu‘u ‘Ō‘ō caused rockfalls and possibly additional collapse into the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano’s East Rift Zone. A short-lived plume of ash produced by this event lofted skyward and dissipated as it drifted southwest from Pu‘u ‘Ō‘ō. Downwind areas may have experienced a dusting of ash from this plume. At this time, the 10:30 earthquake has caused no other changes at Kīlauea Volcano. HVO will continue to closely watch monitoring data for any changes. This image was captured from an HVO overflight carrying HVO scientists to the East Rift Zone for field work today. USGS photo by Kevan Kamibayashi.
 

SER – 050402

Hawaii M 5.0
19.344°N 155.070°W [18km S of Fern Acres, Hawaii]
6.9 km depth
2018-05-03 20:30:56 UTC

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