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Earth of fire

Actualité volcanique, Articles de fond sur étude de volcan, tectonique, récits et photos de voyage

Publié le par Bernard Duyck
Publié dans : #volcanic activity

Volcanic activity on Ambae Island in Vanuatu continues at major unrest level. The Volcanic Alert Level remains at Level 2.


The activity of the volcano consists of steam emission and explosions of wet tephra ejected above the surface of the lake but confined in the caldera while only very light ash is deposited on the villages located near the volcano, in especially those exposed to wind directions.
New observations have confirmed that the volcanic cone formed inside Lake Voui and that the Ambae volcano continues to emit volcanic gases and ash contained in Lake Vui, which corresponds to the activity of the volcano. Ambae below Volcanic Alert Level 2 indicating “major level of unrest; the danger zone remains 2 km around the volcanic vents and in the drainage area.

The danger zone (Danger Zone A) remains at the summit about 2 km radius from the active 2017-2018 vent. Additionally, the presence of remnant volcanic ash elsewhere on the island (deposited during the 2017/18 eruption), may be mobilized by precipitation.

 

Source: AMBAE VOLCANO ALERT BULLETIN N01 was issued by the Vanuatu Meteorology and Geohazards Department on January 27, 2022 at 5:44 p.m.

Ambae - danger zones - doc. VMGD

Ambae - danger zones - doc. VMGD

The last born of the Pitons de La Fournaise was named Piton Karay.

The choice of this name was guided by the hemispherical pot shape of the volcanic cone. During the eruption, it notably hosted a lava lake overflowing several times from the edges of the crater.

" The word Karay designates in Reunionese Creole a hemispherical pot (similar to a “wok”) with two handles on the sides. In India, this kitchen utensil is generally called “karahi” (from Sanskrit kaṭāha) which was by the suite creolized in “caraye” (karay in KWZ spelling). This choice of name also honors the memory of the Indian workers, who enriched the Reunionese language with words such as Karay".

 

Source: OVPF

Piton de La Fournaise - the last born : Piton Karay - photo OVPF-IPGP - one click to enlarge

Piton de La Fournaise - the last born : Piton Karay - photo OVPF-IPGP - one click to enlarge

In La Palma, while the Cumbre Vieja volcano is degassing, cleaning continues wherever access is permitted according to the analyzes carried out regularly.

The first road reconstruction action is already underway on the lava flows south of the volcano, in the La Majada region, which will advance on the LP-213 to connect with about forty houses and provide accessibility to neighbors.

 

Sources : IGN, Cabildo de La Palma, I love the world

La Palma - CO2 control in the area of ​​La Bombilla in Los Llanos de Aridane - doc. IGM 27.01.2022 - one click to enlarge

La Palma - CO2 control in the area of ​​La Bombilla in Los Llanos de Aridane - doc. IGM 27.01.2022 - one click to enlarge

La Palma - creation of track in the lava flows - photo I love the world 26.01.2022 - one click to enlarge

La Palma - creation of track in the lava flows - photo I love the world 26.01.2022 - one click to enlarge

Kamaʻehuakanaloa Volcano may seem unfamiliar, because its name was recently updated: In July 2021, Lōʻihi Seamount was renamed Kamaʻehuakanaloa by the Hawaii Board on Geographic Names.

The USGS Hawaiian Volcano Observatory (HVO) monitors 6 volcanoes: Kīlauea (currently erupting at Halema'uma'u), Mauna Loa (most recent eruption in 1984), Hualālai (most recent eruption in 1801), Haleakalā (at Maui; most recent eruption 1480-1600 AD), Mauna Kea (most recent eruption over 4,000 years ago), and Kamaʻehuakanaloa (most recent activity 1996).

Hawaii - Lōʻihi seamount renamed Kamaʻehuakanaloa - Doc. USGS bathymetry - one click to enlarge

Hawaii - Lōʻihi seamount renamed Kamaʻehuakanaloa - Doc. USGS bathymetry - one click to enlarge

The seamount was recognized as an active underwater volcano and the youngest volcano in the long line of the Hawaiian-Emperor Range, due to earthquake swarms in the 1970s. The eruption is thought to Kamaʻehuakanaloa's most recent was in 1996, when HVO detected 4,377 earthquakes between mid-July and mid-August.

The old name Kamaʻehuakanaloa was descriptive (Lōʻihi = long), but did not reflect Hawaiian cultural knowledge.

Kama'ehuakanaloa "is a powerful name that evokes the name of Pelehonuamea and her birth in Kanaloa" (the ocean).

 

Source: Hawaii Tracker - Volcano Watch

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