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Is ‘La Palma’ Based on a True Story? The Real Island, Eruption and Tsunami Theory

Netflix’s La Palma is fictional, but it uses a real Spanish volcanic island, the destructive 2021 eruption and a disputed flank-collapse tsunami hypothesis. Here’s what is true, what is exaggerated and La Palma’s latest status.
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No. Netflix’s La Palma is not based on a true story. The four-part Norwegian disaster miniseries is fictional, but it combines several real elements: the Spanish island of La Palma, its active Cumbre Vieja volcanic system, the destructive eruption that occurred there in 2021, and a published scientific model about a possible volcanic flank collapse generating a tsunami.

The family, researchers, warning sequence, chain of disasters and global tsunami shown in the series are invented. The real 2021 eruption was serious and destructive, but it did not produce the show’s trans-Atlantic catastrophe. As of August 10, 2026, La Palma’s latest official monitoring report does not describe an ongoing eruption or significant volcanic deformation.

What is La Palma about?

Released globally on Netflix on December 12, 2024, La Palma is a four-part Norwegian disaster miniseries directed by Kasper Barfoed and written by Harald Rosenløw Eeg and Lars Gudmestad. Netflix presents it as fiction, not as a dramatization of actual people or documented events. Netflix’s production announcement describes the series and its creators.

Its spoiler-free premise is straightforward: a Norwegian family travels to La Palma for a holiday while researchers detect warning signs associated with possible volcanic activity. The story escalates through earthquakes, ash, lava, toxic gases and evacuation, before introducing the much larger possibility of a landslide-generated tsunami.

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That setup is effective because it places fictional characters inside a genuinely volcanic landscape and borrows language from real scientific research. But a realistic setting and real scientific idea do not make the plot a true story.

The easiest way to separate fact from fiction

Element Status What is actually known
La Palma Real A volcanic island in Spain’s Canary Islands.
Cumbre Vieja Real An active southern volcanic ridge or system, rather than one conventional cone with a single permanent crater.
The recent eruption Real La Palma erupted from September 19 to December 13, 2021.
Earthquakes before an eruption Real Seismicity and ground deformation preceded the 2021 eruption.
Lava, ash and volcanic gases Real hazards These affected communities during the 2021 event.
Lava reaching the ocean Real Lava entered the Atlantic and formed new lava deltas.
The family and researchers Fictional They are characters created for the series, not documented participants in the 2021 eruption.
The exact sequence of disasters Fictional The show is not a reconstruction of how the 2021 eruption unfolded.
A giant flank collapse during the story Hypothetical It draws on a scientific scenario that has been modeled, not an observed event.
A global or trans-Atlantic mega-tsunami Dramatized The 2021 eruption did not create one, and newer modeling gives a much less extreme far-field scenario than popular versions of the theory.

Is La Palma a real island?

Yes. La Palma is one of the Canary Islands, an autonomous community of Spain in the Atlantic Ocean. It is a mountainous island formed by volcanic activity and has a documented history of eruptions.

La Palma is sometimes confused with Las Palmas. They are not the same place. La Palma is an island; Las Palmas de Gran Canaria is a city on the neighboring island of Gran Canaria, and Las Palmas is also the name of one of the Canary Islands’ provinces.

The series uses La Palma’s real name, scenery and volcanic identity. Netflix has described the island and volcano as real elements behind the fictional story. The Smithsonian Global Volcanism Program’s profile records La Palma’s volcanic history, while Spain’s Instituto Geográfico Nacional provides geological information about the island and Cumbre Vieja.

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What is Cumbre Vieja?

Cumbre Vieja is best understood as a volcanic ridge or volcanic system in southern La Palma. It contains multiple volcanic cones and vents, and eruptions can occur at different locations along the system over time. Calling it simply “the Cumbre Vieja volcano” is a convenient simplification, but it can give the misleading impression that the island has one single cone waiting to erupt from one fixed crater.

In ordinary language, Cumbre Vieja can be called an active volcano because it has erupted in relatively recent historical time and could erupt again. “Active” does not mean that it is constantly erupting, or that an eruption is happening whenever visitors are on the island. It describes a volcanic system with continuing geological potential.

The Smithsonian catalog lists historical La Palma eruptions including events in 1585, 1646, 1677, 1712, 1949, 1971 and 2021, with cataloging conventions determining how individual events are grouped and named. The history helps explain why scientists monitor the island, but it does not by itself predict when the next eruption will occur.

What happened during the real 2021 eruption?

The eruption that gives La Palma much of its real-world context was a major local disaster, even though it did not become the global catastrophe portrayed in the series.

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  1. September 11, 2021: Spain’s IGN began recording intense seismic activity and ground deformation beneath La Palma.
  2. September 19, 2021, at 14:10 UTC: An eruption began in the Cabeza de Vaca area of the municipality of El Paso.
  3. During the eruption: Lava flows, ash, volcanic bombs, gases and pyroclastic material affected populated areas. Lava traveled to the coast and entered the Atlantic, building new lava deltas.
  4. December 13, 2021, at 22:21 UTC: The regional volcanic emergency committee, PEVOLCA, recorded the end of eruptive activity after approximately 85 days and 8 hours.
  5. December 25, 2021: Authorities formally declared the eruption over after a sustained period without eruptive activity.

The distinction between December 13 and December 25 matters. December 13 marks the recorded physical end of eruptive activity; December 25 marks the later formal administrative declaration. Descriptions that give only December 25 as the eruption’s end are usually collapsing those two milestones into one.

The IGN’s official 2021 eruption record provides the timeline and times. The Spanish government’s reconstruction portal gives these headline impact figures:

  • approximately 159 million cubic meters of lava;
  • more than 1,219 hectares covered;
  • approximately 73.8 kilometers of roads buried or affected;
  • approximately 2,988 buildings affected.

These figures should be treated as reconstruction estimates, and definitions matter. “Buildings affected” is not necessarily the same as “buildings completely destroyed,” while road figures can include roads buried or otherwise disrupted. The Spanish government’s La Palma reconstruction information is the source for the figures above.

The Smithsonian Global Volcanism Program classifies the 2021 event as an explosive/effusive eruption with a maximum Volcanic Explosivity Index of 3. That classification describes the eruption’s explosivity; it does not measure the total human, economic or infrastructure damage.

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How much of the real eruption appears in the series?

La Palma uses real volcanic hazards as building blocks. Earthquakes can precede an eruption, ash can disrupt travel and breathing, lava flows can destroy homes and roads, and volcanic gases can be dangerous. The 2021 eruption also demonstrated that lava can reach the sea and create new land at the coast.

What is fictional is the precise combination, timing and scale. The show is not presenting the real family’s experience of the 2021 event, nor is it recreating the official warning process or the actual progression from September to December. Its disaster plot is an imaginative escalation of real hazards.

The most accurate description is that the series draws on La Palma’s volcanic setting and the public attention surrounding the 2021 eruption. It should not be described as a dramatization of that eruption. Production descriptions frame the story as fictional and based on volcanic and landslide ideas rather than as a recreation of the real event. The Tenerife Film Commission’s production page provides context about the fictional premise and filming.

Could La Palma really cause a mega-tsunami?

This is the part of the show with the most substantial scientific basis—but also the part most likely to be misunderstood.

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The original flank-collapse hypothesis

In a 2001 paper, researchers Steven Ward and Simon Day modeled a hypothetical scenario in which a large section of Cumbre Vieja’s western flank failed during a future eruption. If a very large volume of rock entered the Atlantic rapidly enough, it could displace seawater and generate tsunami waves.

The paper was a model of a possible worst-case geological event. It was not a timetable, a warning that a collapse was imminent, or a prediction that the next eruption would trigger one. It also did not predict that the 2021 eruption would produce a trans-Atlantic tsunami.

Public discussion often simplified the research into the phrase “La Palma could send a mega-tsunami to the United States.” That wording made a conditional model sound like a forecast. The original study can be read through the Ward and Day paper.

What later modeling changed

Later research considered different possible slide volumes, slide speeds and tsunami-generation mechanisms. A 2012 numerical study emphasized that the size and motion of the collapse are crucial: changing those assumptions changes the resulting waves. Ocean depth, seafloor shape and the way waves disperse across the Atlantic also matter.

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The U.S. Geological Survey summarizes newer modeling as producing maximum wave heights along the east coasts of North and South America on the order of 1–2 meters, or roughly 3–7 feet, in a worst-case collapse scenario—far below the enormous Hollywood-style walls of water commonly associated with the story. That would still be dangerous in affected coastal areas, particularly because tsunami damage depends on currents, flooding, timing and local geography. It is not the same as saying that a landslide-generated wave would be harmless.

The USGS assessment explains that improved bathymetry and coastal modeling reduce predicted far-field wave heights. It also notes that no characteristic deposit from such a giant event has been identified on the east coasts of North or South America.

That does not mean every possible landslide tsunami from La Palma is impossible. A sufficiently large collapse close to the island could generate hazardous waves, and the outcome would depend on the details of the failure. The more precise conclusion is that the extreme, near-apocalyptic version is not the current scientific consensus and is not an imminent prediction.

Why the 2021 eruption did not trigger the show’s tsunami

The 2021 eruption did not produce the modeled massive flank collapse or a trans-Atlantic tsunami. An eruption and a major flank failure are related possibilities, but they are not the same geological event. Lava, ash and earthquakes do not automatically mean that an entire side of the island is about to slide into the ocean.

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A large collapse would be expected to involve signs of flank instability, such as increasing earthquakes and significant ground deformation. The absence of the modeled collapse during the 2021 eruption is one reason the show should be understood as a fictional combination of a real eruption setting and a separate hypothetical scenario—not as a retelling of what happened.

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Is La Palma erupting now?

As of August 10, 2026, La Palma is not reported to be in an eruption. The latest official monthly monitoring information available for this article covers July 1–31, 2026. During that month, IGN recorded 20 earthquakes on La Palma and reported no significant ground deformation associated with volcanic activity in the Canary Islands.

This is a dated monitoring snapshot, not a permanent guarantee that the island can never erupt again. La Palma remains a volcanically active island, which is why it is monitored through seismic, geodetic and other surveillance networks. An earthquake count by itself does not establish that an eruption is imminent; scientists assess patterns, depth, location, deformation, gas signals and other evidence together.

The careful conclusion is therefore: the latest official report does not describe an ongoing eruption or significant deformation indicating an immediate volcanic crisis, but future volcanic activity remains possible. The IGN’s volcanic monitoring page should be checked for updates beyond July 2026.

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For visitors, the island’s tourism authority says everyday life generally continues after the 2021 eruption, although reconstruction and post-eruption hazards still affect some areas. Travelers should follow current trail closures, access restrictions and local instructions rather than relying on the series or old travel articles. See La Palma’s official tourism guidance.

Where was La Palma filmed?

The production filmed in the Canary Islands, using both La Palma and Tenerife. Filming began on the islands in 2023, according to the Tenerife Film Commission.

That explains why the scenery can look authentically volcanic and why the production conveys a convincing sense of place. It does not mean that every scene was filmed at the precise location represented in the story. Nor does filming on or near a real volcanic landscape make the fictional plot factual.

The Tenerife Film Commission’s production report provides additional information about the locations and production services.

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What does La Palma get right—and what does it invent?

The show’s realism comes from layering several different kinds of truth:

  • Confirmed reality: La Palma exists, Cumbre Vieja is a real volcanic system, and the island has erupted repeatedly.
  • Real recent events: The island experienced earthquakes, deformation, lava flows, ash, gases, destruction and lava entering the sea during the 2021 eruption.
  • Real scientific concept: A volcanic flank collapse could, under certain conditions, generate a tsunami. Researchers have modeled that possibility.
  • Dramatic invention: The family, researchers, precise warnings, rapid chain reaction and global-scale catastrophe belong to the series.

The best short description is not “the show is true” or “the show is completely made up.” It is a fictional disaster story built around a real island, a real eruption and a disputed, highly conditional scientific scenario.

Frequently Asked Questions

Did the 2021 La Palma eruption cause a tsunami?

No. Lava reached the Atlantic and created new lava deltas, but the eruption did not cause the massive flank collapse or trans-Atlantic tsunami shown in the series.

Are the family and scientists in La Palma real people?

No. Netflix presents the miniseries as fiction, and there is no evidence that its family, researchers or precise disaster sequence represent actual people or events.

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Is Cumbre Vieja one volcano?

It is more accurately described as an active volcanic ridge or system containing multiple cones and vents. Eruptions can occur at different locations along the system.

Is another eruption on La Palma imminent?

The latest official IGN report available as of August 10, 2026, covering July 2026, recorded 20 earthquakes on La Palma and no significant volcanic deformation in the Canary Islands. It did not report an ongoing eruption or signs of an immediate crisis, but monitoring cannot guarantee that future activity is impossible.

The Bottom Line

The island, volcanic system and 2021 eruption in La Palma are real; the characters, plot and global disaster are fictional. The tsunami storyline comes from genuine scientific modeling, but the series presents a highly dramatized version of a low-probability hypothetical flank-collapse scenario—not what happened during La Palma’s 2021 eruption.

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