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Archived Volcano News - John Seach
November 2004
News reports posted in Eastern Australian Time (UT + 10 hr)
Reports written by John Seach
Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Thursday 25th November 2004
Lava is entering the sea at Kilauea volcano in Hawaii, extending the delta at the eastern end of the ocean entry. Three lava breakouts are visible on the pali.
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Volcanoes of Hawaii...
Manam Volcano (Papua New Guinea)
4.10 S, 145.06 E, summit elevation 1807 m, Stratovolcano
Wednesday 24th November 2004
Eruptions at Manam volcano are easing after an ash plume reached 10-15km altitude. Strong Strombolian eruptions and lava flows occurred at the volcano. Volcanic activity still remains high, and ash presents an aviation hazard.
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Manam Volcano (Papua New Guinea)
4.10 S, 145.06 E, summit elevation 1807 m, Stratovolcano
Wednesday 24th November 2004
A large eruption continues at Manam volcano in Papua New Guinea. An ash plume has reached 45,000 ft altitude and has drifted 130 nautical miles ESE of the volcano. Reports are slow to surface from this rarely visited region. An eruption of this size is likely to have significant effects on local population. Manam is a 10km wide island located 15km off the coast of New Guinea. In 1996 the volcano erupted explosively causing 13 deaths. In 1992 pyroclastic flows reached the sea. Manam is one of the world's most active volcanoes.
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Mauna Loa Volcano (Hawaii)
19.47 N, 155.60 W, summit elevation 4170 m, shield volcano
Tuesday 23rd November 2004
There has been an increase in the number of earthquakes measured under Mauna Loa volcano since July 2004. A total of 1250 earthquakes have been measured under the summit from early July to 17th November. In the week ending 17th November, 188 earthquakes were measured. Most of the earthquakes are "long-period" and located between 35 and 50 km under the surface. This type of seismic activity has not been recorded previously under Mauna Loa volcano. This pattern of seismic activity was not seen before the 1975 and 1984 eruptions. Lengthening, uplift, and tilting of the ground at Mauna Loa indicates swelling of the magma reservoir within the volcano.
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Manam Volcano (Papua New Guinea)
4.10 S, 145.06 E, summit elevation 1807 m, Stratovolcano
Tuesday 23rd November 2004
Larger eruptions are occurring at Manam volcano in Papua New Guinea. At 1050 hr (local time) today there were ash emissions to 33,000 ft elevation, extending 70 nautical miles ESE of the volcano. This is one of the largest eruptions in the world this year. Report copyright John Seach.
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Nyiragongo Volcano (Democratic Republic of Congo)
1.52 S, 29.25 E, summit elevation 3469 m, stratovolcano
Monday 22nd November 2004
Seismicity has increased over the past week, and lava levels have risen in the crater at Nyiragongo volcano. The magma column has been rising since 10th November. There has been a 2 deg C increase in temperature at the volcano summit, and a widening of fractures at the south flank. Volcanic hazards include overfilling of the crater with lava, or an eruption from the fissures located at the base of the volcano.
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Galeras Volcano (Colombia)
1.22 N, 77.37 W, summit elevation 4276 m, complex volcano
Monday 22nd November 2004
Galeras volcano erupted explosively on Sunday at 2100 hr (UT) sending projectiles 3km from the crater, and starting forest fires. The ash plume reached an altitude of 6200m. The eruption was preceded by a major earthquake (mag 7.2) on 15th November, located near the west coast of Colombia.
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Mt St Helens Volcano (USA)
46.20 N, 122.18 W, summit elevation 2549 m, stratovolcano
Monday 22nd November 2004
The lava dome continues to grow at Mt St Helens volcano with uplift of 76 m (250 ft) higher than the summit of the 1980-86 lava dome. Seismicity levels are currently low, indicating little gas is contained in the rising magma, lowering the chance of an explosive eruption. Volcanic activity can change without warning and the volcano remains at alert level 2. There are some road closures around the volcano.
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Volcanoes of USA...
Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Monday 22nd November 2004
Lava is entering the ocean at Kilauea volcano in Hawaii. Lava breakouts are visible at the surface within 400m of the coast. Small black sand beaches are being formed either side of the lava ocean entry.
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Volcanoes of Hawaii...
Mt Ruapehu Volcano (New Zealand)
39.28 S, 175.57 E, summit elevation 2779 m, stratovolcano
Saturday 20th November 2004
There has been an increase in volcanic tremor at Ruapehu volcano since 3rd November. This is the strongest tremor recorded at the volcano since May 2003. On 13th November the temperature of the crater lake had risen to 18.9 deg C, an increase in 3 degrees since August. Steam plumes are expected to be visible under favourable conditions. Ruapehu remains at Alert Level 1.
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Taal Volcano (Philippines)
14.002 N, 120.993 E, summit elevation 400 m, stratovolcano
Saturday 20th November 2004
An increase in seismic activity has been recorded at Taal volcano in the Philippines, with 31 high frequency earthquakes in seven days. There has been an increase in water temperature and acidity in the crater lake. Taal volcano has been placed on Alert level 1 (out of 5) which means that there is magmatic, tectonic or hydrothermal disturbance; but no eruption imminent.
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Manam Volcano (Papua New Guinea)
4.10 S, 145.06 E, summit elevation 1807 m, Stratovolcano
Saturday 20th November 2004
Eruptions continue at Manam volcano in Papua New Guinea. Ash emissions were observed at 0630 hr (local time) on Saturday 20th November. Eruption plume reached 25,000 ft and drifted 40 nautical miles east.
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Miyake-jima Volcano (Japan)
34.08 N, 139.53 E, summit elevation 815 m, stratovolcano
Wednesday 17th November 2004
Some shops and accommodation facilities reopened this month on Miyake-jima island ahead of residents' scheduled return in February 2005. The island was evacuated in 2000 due to volcanic activity. Fifteen accommodation facilities and six shops have reopened on the island, and 10 other shops are expected to reopen by the end of the month. The volcano continues to emit SO2 gas.
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Mt Etna (Italy)
37.73 N, 15.00 E, summit elevation 3350 m, Shield volcano
Wednesday 17th November 2004
Two active lava flows continue at Mt Etna volcano. The flows originate at 2620m and 2350m elevation and flow in the Valle del Bove towards the craters Monti Centenari.
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Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Wednesday 17th November 2004
Lava continues to enter the ocean at Kilauea volcano in Hawaii. A new arm of the lava flow feeding the ocean entry has formed 180m back from the coast, and may reach the sea in a few days.
More on Kilauea Volcano...
Volcanoes of Hawaii...
Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Sunday 14th November 2004
The lava delta at Kilauea volcano has an area of 0.6 hectares. It extends 190m parallel to the shore and 57m seawards. The lava cascades over the old sea cliff are in tubes and not visible. A small surface lava flow is visible at about 1600 ft elevation high on Pulama pali, inland from the coast.
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Volcanoes of Hawaii...
Mt St Helens Volcano (USA)
46.20 N, 122.18 W, summit elevation 2549 m, stratovolcano
Sunday 14th November 2004
Lava dome growth continues at Mt St Helens volcano. Over the past few days there has been an upward growth of at least several metres. Gas emissions are slightly higher than those earlier in the week. The volcano is currently at Alert Level 2. A change in the level of eruption could occur without warning and may include explosions that produce hazardous conditions within several miles of the volcano.
More on Mt St Helens volcano...
Volcanoes of USA...
Indonesia Earthquake (Magnitude 7.3)
Friday 12th November 2004
A major earthquake (magnitude 7.3) occurred in eastern Indonesia on Friday, November 12, 2004 at 5:26 AM local time. The epicenter was located at Kepulauan Alor, 100 km (60 miles) WNW of Dili, East Timor, at a depth of 38 km. Six people were killed, and 100 injured. The death toll could rise because there have been no reports from remote areas on the island. A number of aftershocks have been recorded. Indonesia is located on a subduction zone and is subjected to frequent earthquakes and volcanic eruptions.
Volcanoes of Indonesia...
Mt St Helens Volcano (USA)
46.20 N, 122.18 W, summit elevation 2549 m, stratovolcano
Friday 12th November 2004
Small ash emissions continue at Mt St Helens volcano. Current seismicity at the volcano are consistent with the growth of a lava dome on the crater. The lava dome is 400m by 180 (1300 ft by 600) in size. The highest point on the new lava dome is about 250 m (820 feet) above the former surface of the glacier that occupied that point in mid September. Maximum surface temperatures on the new dome remain at about 700 degrees C (1300 degrees F). GPS instruments show rates of ground movement of up to several meters per day. Current status is Volcano Advisory (Alert Level 2). A change in the level of eruption could occur without warning and may include explosions that produce hazardous conditions within several miles of the volcano.
More on Mt St Helens volcano...
Volcanoes of USA...
Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Friday 12th November 2004
Lava continues to enter the sea at Kilauea volcano in Hawaii. The lava is located in the eastern Lae`apuki area. A new lava delta has formed and extends for a distance of 170m parallel to the shore, and 50m out from the old sea cliff.
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Volcanoes of Hawaii...
Manam Volcano (Papua New Guinea)
4.10 S, 145.06 E, summit elevation 1807 m, Stratovolcano
Friday 12th November 2004
Manam volcano has erupted in Papua New Guinea. Ash emissions reached 30,000 ft elevation 40 nautical miles W/NW of the volcano, and 20,000 ft elevation 80 nautical miles to SW, as of 0730 hr UT on 11th November.
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Mt Etna (Italy)
37.73 N, 15.00 E, summit elevation 3350 m, Shield volcano
Thursday 11th November 2004
Lava flows continue from two locations on Mt Etna Volcano. The lava flows, are located in the Valle del Bove in direction of the craters Monti Centenari. The most advanced front of lava is at an altitude of 1700m.
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Sheveluch Volcano (Russia)
56.653 N, 161.360 E, summit elevation 3283 m, stratovolcano
Tuesday 9th November, 2004
Sheveluch volcano continues to eject ash to a height between 1,500 and 4,500 meters. Scientists from the Kamchatka scientific and methodological seismology research group registered an eruption at 11:05 local time on Monday. Poor weather conditions hindered the visual observation of the volcano for the most part of yesterday. However, according to seismic data, the volcano has already registered at least 5 high altitude emission of gas and ash. Satellite images show an 85 km long ash cloud moving in southeast direction. At present, it does not pose any danger to residents of nearby villages. Nevertheless, clouds of emitted ashes might be very dangerous for aircraft and tourists, anglers and hunters who get too close to the volcano.
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Mt St Helens Volcano (USA)
46.20 N, 122.18 W, summit elevation 2549 m, stratovolcano
Monday 8th November 2004
A lava dome continues to grow at Mt St Helens volcano. This is accompanied by emissions of steam and ash. An increase in the intensity of eruption could occur without warning and may include explosive events that produce hazardous conditions within several miles of the volcano.
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Volcanoes of USA...
Kilauea Volcano (Hawaii)
19.425 N, 155.292 W, summit elevation 1222 m, Shield volcano
Monday 8th November 2004
Lava has reached the ocean at Kilauea volcano in Hawaii. Three cascades are visible flowing over the old sea cliff and creating a new delta seaward of the old Lae`apuki delta. This is the first time that lava has entered the sea since the Banana lava delta ceased operation in early August. The lava entry point is a long walk from the ranger hut, about 4.7 km one way, which takes about 3 hours for a return walk.
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Volcanoes of Hawaii...
Grimsvotn Volcano (Iceland)
64.42 N, 17.33 W, summit elevation 1725 m, caldera
Monday 8th November 2004
Grimsvotn volcano erupted on November 1, 2004 around 22 hr UT. A swarm of volcanic earthquakes started about 3 hours earlier and then changed to continuous low frequency tremor, indicating onset of an eruption. A plume rose to 9 km on 2nd november. The eruption was initially under 150-200 m thick ice and melted its way through the ice cap in about 1 hour. Tephra fell in inhabited areas in north and northeast Iceland, but only in small quantities. The eruption plume was seen on satellite images and ash drifted over large parts of the North Atlantic and reached Scandinavia. Air traffic was disrupted; an area of 311 thousand square kilometers was closed for flights from the beginning of the eruption until the morning of November 4. Farmers sheltered grazing animals in North Iceland to prevent them from consuming soluble fluorine adhering to ash grains.
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