La Palma volcanic eruption officially ended on Christmas Day

Posted: December 26, 2021 by oldbrew in Emissions, Natural Variation, News, Uncertainty, volcanos


After flaring for 85 days and 8 hours, La Palma’s longest eruption on record has finally ceased activity.
– – –
Authorities on one of Spain’s Canary Islands declared a volcanic eruption that started in September officially finished Saturday following 10 days of no lava flows, seismic activity or significant sulfur dioxide emissions, reports Phys.org.

But the emergency in La Palma, the most northwest island in the Atlantic Ocean archipelago, is not over due to the widespread damage the eruption caused, the director of the Canaries’ volcanic emergency committee said in announcing the much-anticipated milestone.

“It’s not joy or satisfaction – how we can define what we feel? It’s an emotional relief. And hope,” Pevolca director Julio Pérez said. “Because now, we can apply ourselves and focus completely on the reconstruction work.”

Fiery molten rock flowing down toward the sea destroyed around 3,000 buildings, entombed banana plantations and vineyards, ruined irrigation systems and cut off roads. But no injuries or deaths were directly linked to the eruption.

Pérez, who is also the region’s minister of public administration, justice and security, said the archipelago’s government valued the loss of buildings and infrastructure at more than 900 million euros ($1 billion).

Volcanologists said they needed to certify that three key variables – gas, lava and tremors – had subsided in the Cumbre Vieja ridge for 10 days in order to declare the volcano’s apparent exhaustion.

Since the eruption started on Sept. 19, previous periods of reduced activity were followed by reignitions.

Full report here.

Comments
  1. […] La Palma volcanic eruption officially ended on Christmas Day […]

  2. oldbrew says:

    Another long-lasting one quit last week…

    Volcanic eruption outside Reykjavik is officially over
    December 20 2021

    Lava had not flowed for eight centuries on the Reykjanes peninsula, and for nearly 6,000 years where the eruption occurred, according to volcanologists.
    However, this eruption, the sixth in Iceland in the last 20 years, became the longest recorded in half a century as it continued to spew lava for six months.
    Just after claiming that record on September 18, the lava stopped emerging – but only after more than 140mn cubic metres of magma had spilled into the valleys of Geldingadalur.
    Relatively easy to access, the eruption became a major tourist attraction, with more than 350,000 visitors, according to the Icelandic Tourist Board.
    And the experts have warned that further eruptions in the area are possible.
    “History tells us that volcanic activity there occurs in cycles,” the IMO said.

    https://www.gulf-times.com/story/706599/Volcanic-eruption-outside-Reykjavik-is-officially-
    – – –
    But another one seems to be brewing…

    Volcano Watch: After an earthquake swarm, a large explosive volcano in Iceland is now on a raised alert level, with a high eruption risk
    07/12/2021

    Grimsvotn volcano in Iceland is on an increased alert, after an earthquake swarm and a subglacial flood. The available data shows that the volcano is nearing critical pressure, now being in the final runup stages before an eruption.

    https://www.severe-weather.eu/news/volcano-grimsvotn-iceland-earthquake-swarm-eruption-alert-2021-fa/

  3. Gamecock says:

    One wonders what effect on sea level would ‘more than 140mn cubic metres of magma’ have, had the volcano been undersea.

    Note that 70-80 percent of the world’s volcanoes are undersea.

  4. Adam Gallon says:

    Absolutely minimal effect.
    The oceans have a volume of around 137 billion cubic km.

  5. tom0mason says:

    I wonder if anyone bothered to inform La Palma volcano in the Cumbre Vieja ridge, that it has officially ended erupting on Christmas Day 2021.

    Have a happy New Year to everyone 🙂 .

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