{"id":424,"date":"2025-05-13T18:37:46","date_gmt":"2025-05-13T18:37:46","guid":{"rendered":"https:\/\/caribbean-risks.org\/?page_id=424"},"modified":"2026-03-24T09:10:22","modified_gmt":"2026-03-24T13:10:22","slug":"eruptions-volcaniques-caraibes","status":"publish","type":"page","link":"https:\/\/caribbean-risks.org\/en\/eruptions-volcaniques-caraibes\/","title":{"rendered":"Volcanic eruptions"},"content":{"rendered":"

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Volcanic eruptions<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ fullwidth=\u00a0\u00bbon\u00a0\u00bb _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb da_disable_devices=\u00a0\u00bboff|off|off\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb da_is_popup=\u00a0\u00bboff\u00a0\u00bb da_exit_intent=\u00a0\u00bboff\u00a0\u00bb da_has_close=\u00a0\u00bbon\u00a0\u00bb da_alt_close=\u00a0\u00bboff\u00a0\u00bb da_dark_close=\u00a0\u00bboff\u00a0\u00bb da_not_modal=\u00a0\u00bbon\u00a0\u00bb da_is_singular=\u00a0\u00bboff\u00a0\u00bb da_with_loader=\u00a0\u00bboff\u00a0\u00bb da_has_shadow=\u00a0\u00bbon\u00a0\u00bb][et_pb_fullwidth_menu menu_id=\u00a0\u00bb25″ active_link_color=\u00a0\u00bb#000000″ _builder_version=\u00a0\u00bb4.27.6″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb menu_font_size=\u00a0\u00bb15px\u00a0\u00bb hover_enabled=\u00a0\u00bb0″ global_colors_info=\u00a0\u00bb{}\u00a0\u00bb menu_text_color=\u00a0\u00bb#000000″ sticky_enabled=\u00a0\u00bb0″][\/et_pb_fullwidth_menu][\/et_pb_section][et_pb_section fb_built=\u00a0\u00bb1″ _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb min_height=\u00a0\u00bb1114.2px\u00a0\u00bb da_disable_devices=\u00a0\u00bboff|off|off\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb da_is_popup=\u00a0\u00bboff\u00a0\u00bb da_exit_intent=\u00a0\u00bboff\u00a0\u00bb da_has_close=\u00a0\u00bbon\u00a0\u00bb da_alt_close=\u00a0\u00bboff\u00a0\u00bb da_dark_close=\u00a0\u00bboff\u00a0\u00bb da_not_modal=\u00a0\u00bbon\u00a0\u00bb da_is_singular=\u00a0\u00bboff\u00a0\u00bb da_with_loader=\u00a0\u00bboff\u00a0\u00bb da_has_shadow=\u00a0\u00bbon\u00a0\u00bb][et_pb_row _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_text_color=\u00a0\u00bb#000000″ text_font_size=\u00a0\u00bb15px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

What is a volcanic eruption? <\/strong><\/p>\n

The Earth's crust is constantly changing. You can't see it with the naked eye, but the rocks are moving on a global scale. This activity is particularly evident near the major faults that run through it. These faults allow magma (a mixture of molten rock that has become liquid due to heat and gas) to rise. During an eruption, the pressure allows the magma to escape to the surface through a crater or fissure, which are openings or exit points. The magma then becomes lava which, as it cools and solidifies, creates a cone called a volcano.<\/p>\n

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Types of volcanic eruptions<\/strong><\/p>\n

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Regular eruptions of high-temperature fluid lava (around 1,200\u00b0C), flowing slowly down the volcano's slopes.<\/p>\n

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The viscous, low-liquid, gas-rich magma accumulates deep beneath the dome, which acts as a \u00abplug\u00bb. When the pressure becomes too great, the magma is expelled violently, creating large plumes of gas and clouds of ash that can take the form of fiery clouds.\u00a0<\/p>\n

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Caribbean volcanoes are explosive.<\/strong><\/p>\n

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As well as lava flows and gas emissions, volcanoes can generate other dangerous phenomena, such as lahars. A lahar is a volcanic mudflow: it forms when water from heavy rain mixes with volcanic ash and debris. Lahars can rapidly roll down slopes and cause major damage in inhabited areas.<\/p>\n

More on lahars with Pirac <\/strong><\/a><\/span><\/p>\n

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The eruptions marked the history of the Caribbean, check out these past events by clicking here.\u00a0<\/span><\/strong><\/p>\n

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The volcanic eruptions in the Caribbean<\/strong><\/span><\/p>\n

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\"The Caribbean region is characterized by significant volcanic activity. This area is known as the Lesser Antilles Arc.\nVolcanic activity on Earth is driven by plate tectonics and the movement of magma underground. The Earth\u2019s surface is divided into about a dozen tectonic plates that move relative to one another. Their interactions create different geological processes, particularly:\"<\/p>\n

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Convergence Zone<\/p>\n

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A plaque can dive under another, this is called subduction zones<\/p>\n

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Divergence zone<\/p>\n

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The warm material rises to the surface of the earth and pushes the plates<\/p>\n

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The west indies is a chain of volcanic islands that extends into the Caribbean sea and having been created by the succession of volcanic eruptions from about 40 million years ago.<\/p>\n

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Diagram of the formation of the west indies ( \u00a9Risque972)<\/p>\n

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To the east of the Caribbean Sea, the North American Atlantic tectonic plate (less dense) converges until it slowly slides under the Caribbean plate (denser), a process known as subduction. This meeting of plates, which takes place over millions of years and at a speed that is very slow by human standards (a few centimetres per year), is geologically significant, generating a highly active volcanic zone. As the oceanic plate sinks into the Earth's mantle, it is subjected to very high pressures and temperatures, resulting in the creation of magma.<\/p>\n

This magma then rises to the surface and feeds volcanoes.<\/p>\n

A succession of volcanic eruptions has been shaping the Caribbean arc for around 40 million years. Today, this volcanic activity continues to shape the Caribbean landscape.<\/p>\n

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The volcanoes in the caribbean are volcanoes explosive, even if some have been able to exhibit phases effusive.<\/p>\n

Source :<\/em> Booklet teacher, cycle 3 \u2013 Project \"Pare pa Pare\" \u2013 French Red Cross \u2013 2022<\/span><\/strong><\/p>\n

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Map of active volcanoes in the Lesser Antilles\u00a0<\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_column type=\u00a0\u00bb4_4″ _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb][et_pb_text _builder_version=\u00a0\u00bb4.27.4″ _module_preset=\u00a0\u00bbdefault\u00a0\u00bb text_text_color=\u00a0\u00bb#000000″ text_font_size=\u00a0\u00bb15px\u00a0\u00bb global_colors_info=\u00a0\u00bb{}\u00a0\u00bb]<\/p>\n

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For more information :\u00a0<\/b><\/p>\n

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Redirect links\u00a0\u00a0<\/span><\/p>\n

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Risk 972 \u2013 Monitoring and Safety Tips<\/a><\/span><\/strong>\u00a0<\/span> Explanation on the phenomenon, the hazards, how to protect themselves and the eruptions in the lesser Antilles (En)\u00a0<\/span><\/p>\n

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Volcanoes | The UWI Seismic Research Centre<\/a><\/span><\/strong>\u00a0<\/span> University of the West indies explanation on the volcanoes (Eng)<\/span><\/p>\n

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Volcanic eruption | Geohazards<\/strong><\/span><\/a><\/span>\u00a0 French guide to volcanic eruptions - G\u00e9orisques (en)<\/span><\/p>\n

 <\/p>\n

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Natural hazards<\/p>\n

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How to Protect<\/p>\n

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Risks on my island<\/p>\n

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Pirac<\/p>\n

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OECS<\/p>\n

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CDEMA<\/p>\n

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<\/p>\n
<\/p>\n

Natural Hazards and Prevention Index<\/h2>\n

<\/p>\n

    <\/p>\n
  • Natural hazards, Hurricane, Cyclone, Earthquake, Volcanic eruption, Flood, Landslide, Tsunami, Climate change<\/li>\n

    <\/p>\n

  • Se prot\u00e9ger, Pr\u00e9vention, Sac de secours, Kit d’urgence, Mesures de protection, Besoins sp\u00e9cifiques, Vuln\u00e9rabilit\u00e9, Alerte pr\u00e9coce, R\u00e9flexes de survie<\/li>\n

    <\/p>\n

  • Caribbean, Island, Risk map, Resources by territory, Toolbox, Glossary<\/li>\n

    <\/ul>\n

    <\/div>\n

    <\/p>\n

    <\/p>\n

    Natural Risks and Prevention Index<\/h2>\n

    <\/p>\n

      <\/p>\n
    • Natural hazards, Natural risks, Hurricane, Cyclone, Earthquake, Volcanic eruption, Flood, Flooding, Landslide, Ground movement, Tsunami, Climate change<\/li>\n

      <\/p>\n

    • How to protect yourself, Prevention, Emergency kit, Go-bag, Protective measures, Special needs, Vulnerability, Early warning, Survival reflexes, Safety tips<\/li>\n

      <\/p>\n

    • Caribbean, Island, Risk map, Resources by territory, Toolbox, Glossary<\/li>\n

      <\/ul>\n

      <\/div>\n

      <\/p>\n

      <\/p>\n

      Natural Hazards and Prevention Index<\/h2>\n

      <\/p>\n

        <\/p>\n
      • Riesgos naturales, Hurac\u00e1n, Cicl\u00f3n, Sismo, Terremoto, Erupci\u00f3n volc\u00e1nica, Inundaci\u00f3n, Deslizamiento de tierra, Movimiento de tierra, Tsunami, Maremoto, Cambio clim\u00e1tico<\/li>\n

        <\/p>\n

      • C\u00f3mo protegerse, Prevenci\u00f3n, Kit de emergencia, Mochila de emergencia, Medidas de protecci\u00f3n, Necesidades especiales, Vulnerabilidad, Alerta temprana, Reflejos de supervivencia<\/li>\n

        <\/p>\n

      • Caribe, Isla, Mapa de riesgos, Recursos por territorio, Caja de herramientas, Glosario<\/li>\n

        <\/ul>\n

        <\/div>\n

        <\/section>\n

        [\/et_pb_code][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":"

        Les \u00e9ruptions volcaniquesQu\u2019est-ce qu\u2019une \u00e9ruption volcanique ? La cro\u00fbte terrestre est en constante \u00e9volution. Si on ne peut pas le voir \u00e0 l\u2019\u0153il nu, les roches bougent \u00e0 l\u2019\u00e9chelle du globe. Cette activit\u00e9 se mat\u00e9rialise tout particuli\u00e8rement \u00e0 proximit\u00e9 des grandes failles qui le parcourent. Ces failles permettent au magma (m\u00e9lange de roches fondues, devenues […]<\/p>","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-424","page","type-page","status-publish","hentry"],"yoast_head":"\nComprendre les \u00c9ruptions Volcaniques dans la Cara\u00efbe | Caribbean Risks<\/title>\n<meta name=\"description\" content=\"Tout savoir sur le volcanisme aux Antilles : types d'\u00e9ruptions (explosives, effusives), formation de l'arc antillais, lahars et risques volcaniques r\u00e9gionaux.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/caribbean-risks.org\/en\/eruptions-volcaniques-caraibes\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta 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