تدفق صامت للماغما تسبب في وقوع زلازل تحت جزيرة في الأزور

14 مايو، 2026

من إعداد الذكاء الاصطناعي

تدفقت كتلة هائلة من الماغما نحو الأعلى تحت جزيرة ساو جورج في أرخبيل الأزور البرتغالي في مارس 2022، مما أدى إلى حدوث آلاف الزلازل قبل أن تتوقف تحت سطح الأرض. وقد مثّل هذا الحدث، الذي تم تفصيله في دراسة جديدة، ثورانًا بركانيًا فاشلاً أثار مخاوف بشأن النشاط البركاني لكنها تلاشت في نهاية المطاف.

نشأت الماغما من عمق يزيد عن 20 كيلومترًا تحت السطح وصعدت بسرعة خلال أيام قليلة فقط. احتوت الماغما على كمية من الصخور المنصهرة تكفي لملء ما يقرب من 32 ألف حوض سباحة أولمبي، لكنها توقفت عند عمق 1.6 كيلومتر، مما تسبب في ارتفاع سطح الجزيرة بحوالي ستة سنتيمترات. وقعت معظم الزلازل بعد توقف الماغما عن الصعود، وتركز النشاط الزلزالي على طول منطقة صدع بيكو دو كاروفاو.

Storm Therese causes evacuations and flooding in Canary Islands

20 مارس، 2026 من إعداد الذكاء الاصطناعي صورة مولدة بواسطة الذكاء الاصطناعي

Storm Therese caused precautionary evacuations in Gran Canaria, home flooding in Tenerife, and flight cancellations at Canary Islands airports on Saturday. Prime Minister Pedro Sánchez urged caution and avoiding unnecessary travel. Authorities activated alerts for flooding and rockfalls across several islands.

Magma surge triggers 28,000 earthquakes near Santorini

A massive influx of magma beneath Santorini caused over 28,000 earthquakes in early 2025, according to a new study. Researchers used advanced AI and seafloor sensors to track the molten rock's movement. The findings reveal a previously unknown connection between Santorini and the nearby underwater volcano Kolumbo.

Kikai caldera supervolcano shows signs of magma recharge

31 مارس، 2026 من إعداد الذكاء الاصطناعي

Researchers have found that the magma reservoir beneath Japan's Kikai caldera, site of the Holocene's largest eruption 7,300 years ago, is refilling with newly injected magma. Using underwater seismic imaging, a team led by Kobe University's Nobukazu Seama mapped the reservoir and linked it to the ancient event. The discovery offers insights into how such systems rebuild after massive eruptions.

علم

Scientists propose solar storms may trigger earthquakes

البيئة

New study reveals potential synchronization of Cascadia and San Andreas faults

علم

New evidence points to emerging tectonic rift in Zambia

Study uncovers complex magma system under young Mars volcano

A new study reveals that a volcano south of Pavonis Mons on Mars formed through multiple eruptive phases powered by an evolving magma system, challenging earlier assumptions of a single eruption. Researchers used orbital imaging and mineral data to trace the volcano's development. The findings indicate Mars's interior was more active than previously thought.

Earthquakes up to 4.7 magnitude strike various parts of Chile on April 4

4 أبريل، 2026 من إعداد الذكاء الاصطناعي

Chile's National Seismological Center recorded several earthquakes on Saturday, April 4, with magnitudes from 3.0 to 4.7. The tremors struck northern and southern regions at varying depths. No damage or major alerts have been reported.

Puracé volcano emits ash and keeps yellow alert in Cauca

The Puracé volcano in Colombia's Cauca department continues to emit ash, leading authorities to keep the alert level at yellow. This status indicates changes in volcanic activity without an imminent eruption. Residents in nearby areas, including Popayán, reported ash fall since May 7.

Scientists map deep mantle deformation linked to ancient tectonic slabs

23 أبريل، 2026 من إعداد الذكاء الاصطناعي

Researchers have created the first global map showing how Earth's deepest mantle is deformed, primarily in regions where ancient subducted tectonic slabs reside. Using over 16 million seismograms, the team confirmed patterns predicted by geodynamic models. The findings, published in The Seismic Record, offer new insights into mantle flow near the core-mantle boundary.

13 مايو 2026 06:50

تدفق صامت للماغما تسبب في وقوع زلازل تحت جزيرة في الأزور

مقالات ذات صلة

Storm Therese causes evacuations and flooding in Canary Islands

Magma surge triggers 28,000 earthquakes near Santorini

Kikai caldera supervolcano shows signs of magma recharge

Scientists propose solar storms may trigger earthquakes

New study reveals potential synchronization of Cascadia and San Andreas faults

New evidence points to emerging tectonic rift in Zambia

Study uncovers complex magma system under young Mars volcano

Earthquakes up to 4.7 magnitude strike various parts of Chile on April 4

Puracé volcano emits ash and keeps yellow alert in Cauca

Scientists map deep mantle deformation linked to ancient tectonic slabs

Magnitude 5.3 quake jolts Cagayan; aftershocks expected

Volcanic plume unexpectedly destroyed methane after 2022 eruption

Massive landslide triggers record tsunami in alaska fjord

Scientists observe Juan de Fuca plate tearing in Cascadia subduction zone

Several low-magnitude earthquakes strike Chile on March 23

Phivolcs raises Bulusan Volcano alert to level 1

Scientists develop Jerk signal for early volcano eruption warnings

Lava flow decreases at Hawaii's Kilauea volcano

Mantle plume shaped massive Atlantic underwater canyon

Stanford scientists create first global map of mantle earthquakes

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