Active Volcanoes: Santiaguito, Fuego, Semeru, Ibu, Dukono, Marapi
volcanic Activity Summary: March 17, 2025
Table of Contents
satellite image of Semeru volcano on 17 Mar 2025
Active Volcanoes and Recent Eruptions
Here’s a summary of volcanic activity reported on March 17, 2025, across various regions.
Asia-Pacific Region
canlaon (Central Philippines)
The Volcanic Ash Advisory Center Tokyo (VAAC) reported an “ERUPTION AT 20250317/0455Z FL090 EXTD SW REPORTED OBS VA DTG:17/0500Z.”
ibu (Halmahera, Indonesia)
The Volcanic ash Advisory Center Darwin (VAAC) issued a report stating, “ERUPTION LAST REPORTED AT 17/0255Z MOV SW EST VA DTG:17/0930Z.”
Lewotobi (Flores)
VAAC Darwin reported, “ERUPTION LAST REPORTED AT 17/0149Z EST VA DTG:17/1010Z.”
Semeru (East Java, Indonesia)
Semeru continues to exhibit explosive activity.VAAC Darwin noted a volcanic ash plume reaching an estimated 15,000 ft (4600 m), moving NE at 05 kts. The full report states: “VA TO FL150 LAST REPORTED AT 17/1335Z MOV N/NE to 15000 ft (4600 m).”
Marapi (Western Sumatra, Indonesia)
VAAC Darwin reported: “CGVHM VONA REPORT VA TO FL120 AT 17/0420Z EST VA DTG:17/0510Z.”
On March 16, a important eruption occurred, emitting dense ash and lava bombs. The ash plume reached approximately 3.7 km altitude,moving north. A seismic signal was recorded with a maximum amplitude of 30.4 mm and a duration of 45 seconds.
The eruption column from Marapi yesterday (image: FPMKI/x.com)
Dukono (Halmahera)
Explosive activity persists. VAAC Darwin reported a volcanic ash plume up to 8000 ft (2400 m), moving south at 10 kts. The full report: “VA TO FL080 LAST REPORTED 17/0454Z EST VA DTG:17/1630Z to 8000 ft (2400 m).”
Americas
Katmai (Alaska Peninsula, USA)
VAAC Anchorage reported: “VA NOT IDENTIFIABLE FM SATELLITE DATA.”
Santiaguito (guatemala)
VAAC Washington issued the following report: “PSBL VA EMS”
Fuego (Guatemala)
Fuego continues explosive activity.VAAC Washington noted a volcanic ash plume reaching 15000 ft (4600 m). The full report: “CONT VA EMS to 15000 ft (4600 m)”
Nevado del Ruiz (Colombia)
VAAC Washington reported: “PSBL VA EMS”
Sangay (Ecuador)
VAAC Washington issued the following report: “PSBL VA EMS”
Reventador (Ecuador)
VAAC Washington reported: “NO VA DTCTD”
Volcano Activity Summary for 17 Mar 2025:
Currently erupting:
- Bagana (Bougainville Island, Papua New Guinea): eruption continues with lava flows (updated 31 Jan 2025)
- Barren Island (Indian Ocean): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Mar 2024)
- Bezymianny (Kamchatka): Smithsonian / USGS Weekly Volcanic Activity Report (updated 3 Feb 2025)
Global Volcanic Activity: Recent updates
Stay informed about the latest volcanic activity around the world. This report provides updates on various volcanoes, including eruption statuses and volcanic ash advisories.
Active Volcanoes: Current Status
Here’s a list of volcanoes with recent activity updates:
- Home Reef (Tonga Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 2 Jan 2025)
- Ibu (Halmahera, Indonesia): Volcanic Ash Advisory (updated 4 Feb 2025)
- Iwo-jima (Volcano islands): new submarine eruption (updated 21 Jul 2024)
- Karymsky (Kamchatka): Smithsonian / USGS Weekly Volcanic Activity Report (updated 1 Sep 2024)
- Kilauea (Hawai’i): Smithsonian / USGS Weekly Volcanic Activity Report (updated 12 Mar 2025)
- Krakatau (Sunda Strait, Indonesia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 Dec 2023)
- Lewotobi (Flores): Volcanic Ash Advisory (updated 13 Feb 2025)
- Lewotolo (Lesser Sunda Islands): Volcanic Ash Advisory (updated 14 mar 2025)
- Marapi (Western Sumatra, Indonesia): Volcanic Ash Advisory (updated 17 Mar 2025)
- Masaya (Nicaragua): Smithsonian / USGS Weekly Volcanic Activity Report (updated 24 oct 2019)
- Merapi (Central Java, Indonesia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Jan 2025)
- Michael (South Sandwich Islands, UK): activity resumes; a thermal anomaly in the summit crater (updated 26 Oct 2023)
- Nyamuragira (DRCongo): Smithsonian / USGS Weekly Volcanic Activity Report (updated 17 Jan 2025)
- Nyiragongo (DRCongo): Smithsonian / USGS Weekly Volcanic Activity Report (updated 17 Apr 2024)
- Popocatépetl (Central Mexico): Volcanic Ash Advisory (updated 30 Oct 2024)
- Reventador (ecuador): Volcanic Ash Advisory (updated 7 Jan 2025)
- Sabancaya (Peru): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 Feb 2023)
- sakurajima (Kyushu, japan): Volcanic Ash Advisory (updated 10 Feb 2025)
- Sangay (ecuador): Volcanic Ash Advisory (updated 9 Jul 2024)
- Santiaguito (Guatemala): Volcanic Ash Advisory (updated 23 Oct 2024)
- Semeru (East Java, Indonesia): Volcanic Ash Advisory (updated 9 Jan 2025)
- Shiveluch (Kamchatka): Smithsonian / USGS Weekly Volcanic Activity Report (updated 3 Jan 2025)
- Stromboli (Eolian Islands, Italy): Smithsonian / USGS Weekly Volcanic Activity Report (updated 10 Feb 2025)
- Suwanose-jima (Ryukyu Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 12 Jan 2024)
- Tinakula (Santa Cruz Islands, Solomon Islands): eruption continues with lava flows from summit vent (updated 22 Mar 2024)
- Yasur (Tanna Island, vanuatu): Smithsonian / USGS Weekly volcanic Activity Report (updated 12 Oct 2023)
Eruption Warning / Minor Activity:
- Agung (Bali): Volcanic ash advisory (updated 18 Dec 2022)
- Alaid (Atlasov Island,Northern Kuriles): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Jan 2023)
- Aoba (Vanuatu): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 oct 2023)
- Bardarbunga (Central Iceland): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 Jan 2025)
- Callaqui (Central Chile and argentina): Volcanic Ash advisory (updated 28 Jan 2022)
- Concepción (Nicaragua): Smithsonian / USGS Weekly Volcanic Activity Report (updated 18 May 2024)
- Cotopaxi (Ecuador): Smithsonian / USGS Weekly Volcanic Activity Report (updated 5 Nov 2023)
- Dempo (Sumatra): Smithsonian / USGS Weekly Volcanic Activity Report (updated 23 Nov 2024)
- Dofen (Ethiopia): strong steam and mud eruptions from new vent (updated 5 Jan 2025)
- Fantale (Ethiopia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 29 Dec 2024)
- Gamalama (Halmahera): Smithsonian / USGS Weekly Volcanic Activity Report (updated 5 Jan 2024)
- Great Sitkin (United States, Aleutian Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 9 Sep 2023)
- Karangetang (Siau Island, Sangihe Islands, Indonesia): Smithsonian / USGS Weekly volcanic Activity Report (updated 9 Aug 2024)
- Katmai (Alaska Peninsula, USA): Volcanic Ash Advisory (updated 12 Nov 2023)
- Kerinci (Sumatra): Smithsonian / USGS Weekly Volcanic Activity Report (updated 17 Oct 2023)
- Kikai (Ryukyu Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 31 Oct 2020)
- Klyuchevskoy (Kamchatka): increased degassing (updated 6 Nov 2024)
- Korovin (Andreanof Islands, Aleutian Islands): Volcanic Ash Advisory (updated 4 Dec 2020)
- Langila (New Britain, Papua New Guinea): Volcanic Ash Advisory (updated 5 Nov 2023)
- Manam (Papua New Guinea): Volcanic Ash Advisory (updated 24 Feb 2024)
- Matthew Island (France, Southwestern Pacific Ocean): Smithsonian / USGS Weekly Volcanic Activity Report (updated 17 Jul 2024)
- Mayon (Luzon Island, Philippines): Smithsonian / USGS Weekly Volcanic Activity Report (updated 4 Feb 2024)
- Nevado del ruiz (Colombia): Volcanic Ash Advisory (updated 4 Jan 2024)
- Nishino-shima (Volcano islands, Japan): new aerial images (updated 6 Nov 2024)
- Ol Doinyo Lengai (Tanzania): effusion of natrocarbonatite lava inside the pit crater in the northern main crater (updated 27 Aug 2021)
- Poas (Costa Rica): Smithsonian / USGS Weekly Volcanic Activity Report (updated 8 Feb 2024)
- Puracé (Colombia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 22 Jan 2025)
- Raung (East Java): Volcanic Ash Advisory (updated 24 Dec 2024)
- Rincón de la Vieja (Costa Rica): Smithsonian / USGS Weekly Volcanic Activity Report (updated 29 Oct 2023)
- Ruang (Sangihe Islands, Indonesia): significant changes to crater detected from satellite (updated 11 Sep 2024)
- San Cristobal (Nicaragua): Smithsonian / USGS Weekly Volcanic Activity Report (updated 9 Jun 2024)
- Seulawah Agam (Sumatra, Indonesia): Volcanic Ash Advisory (updated 16 nov 2024)
Global Volcanic Activity: Recent Updates and Reports
Tracking global volcanic activity is crucial for understanding Earth’s dynamic processes and mitigating potential hazards. This report summarizes recent volcanic events and updates from various sources, providing insights into ongoing eruptions and related phenomena.
Volcano Monitoring and Alert Levels
Volcanic observatories play a vital role in monitoring volcanoes and issuing alerts. The Smithsonian / USGS Weekly Volcanic Activity Report is a key resource, summarizing activity based on specific criteria:
- A volcano observatory raises or lowers the alert level.
- A volcanic ash advisory center (VAAC) releases an advisory indicating ash cloud production.
These reports are essential for scientists, civil authorities, and the public to stay informed about potential volcanic hazards.
Current Volcanic Activity Worldwide
Here’s a summary of recent volcanic activity, based on available reports:
Ongoing eruptions and Volcanic Ash Advisories
Several volcanoes around the world are currently under observation due to recent activity. These include:
- Santiaguito volcano
- Fuego
- Popocatépetl
- Semeru
- ibu
- Dukono
The effusive-explosive activity at these volcanoes continues, requiring ongoing monitoring and assessment.
Specific Volcano Updates
The following is a list of volcanoes with recent updates, according to the Smithsonian / USGS Weekly Volcanic Activity Report and Volcanic Ash Advisories:
- Taal (Luzon, Philippines): Smithsonian / USGS Weekly Volcanic Activity Report (updated 3 Dec 2024)
- Telica (Nicaragua): Smithsonian / USGS Weekly Volcanic activity Report (updated 15 Jan 2025)
- Tofua (tonga Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 28 Apr 2024)
- Ubinas (Peru): Smithsonian / USGS Weekly Volcanic Activity Report (updated 19 Nov 2023)
- Ulawun (New Britain, Papua New Guinea): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Nov 2023)
- Villarrica (Central Chile): Smithsonian / USGS Weekly Volcanic Activity Report (updated 28 Dec 2024)
- White Island (New Zealand): Volcanic ash Advisory (updated 24 feb 2025)
Understanding Volcanic Processes
Volcanoes erupt molten rock from the earth’s mantle. This molten rock is known as magma; once it reaches the surface, it is called lava.The type of eruption, the composition of the lava, and the surrounding environment all influence the impact of volcanic activity.
Okay, I’ve extracted the key information from the provided HTML snippets and compiled it into a structured and readable format. I’ve focused on the volcano names, locations, recent updates, and the nature of the activity, notably Volcanic Ash Advisory (VAAC) reports and other noted activity.
Volcanic Activity Report – March 17, 2025
I. Asia/Pacific Region
lewotobi (Flores, Indonesia): VAAC Darwin reported an eruption at 17/0149Z EST. VA DTG: 17/1010Z.
Semeru (East java, Indonesia): Explosive activity continues. VAAC Darwin noted a volcanic ash plume reaching 15,000 ft (4600 m), moving NE at 05 kts. VA TO FL150 LAST REPORTED AT 17/1335Z MOV N/NE to 15000 ft (4600 m).
Marapi (Western Sumatra, Indonesia): VAAC Darwin reported: “CGVHM VONA REPORT VA TO FL120 AT 17/0420Z EST VA DTG:17/0510Z.” On March 16, an eruption occurred, emitting dense ash and lava bombs. The ash plume reached approximately 3.7 km altitude, moving north.
Dukono (Halmahera, Indonesia): Explosive activity persists. VAAC Darwin reported a volcanic ash plume up to 8000 ft (2400 m), moving south at 10 kts. VA TO FL080 LAST REPORTED 17/0454Z EST VA DTG: 17/1630Z to 8000 ft (2400 m).
II.Americas
Katmai (Alaska Peninsula,USA): VAAC Anchorage reported: ”VA NOT IDENTIFIABLE FM SATELLITE DATA.”
Santiaguito (Guatemala): VAAC Washington issued report: “PSBL VA EMS”.
Fuego (Guatemala): Fuego continues explosive activity. VAAC Washington noted a volcanic ash plume reaching 15000 ft (4600 m). CONT VA EMS to 15000 ft (4600 m).
Nevado del Ruiz (Colombia): VAAC Washington reported: “PSBL VA EMS”.
Sangay (Ecuador): VAAC Washington issued the following report: “PSBL VA EMS”.
Reventador (Ecuador): VAAC Washington reported: “NO VA DTCTD”.
III. Currently Erupting Volcanoes
Bagana (Bougainville Island, Papua New Guinea): Eruption continues with lava flows (updated 31 Jan 2025).
Barren Island (Indian Ocean): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Mar 2024).
Bezymianny (Kamchatka): Smithsonian / USGS Weekly Volcanic Activity Report (updated 3 Feb 2025).
IV. Active Volcanoes (General List)
Home reef (Tonga Islands): Smithsonian / USGS Weekly Volcanic Activity Report (updated 2 Jan 2025).
Ibu (Halmahera, Indonesia): Volcanic Ash Advisory (updated 4 Feb 2025).
Iwo-jima (Volcano Islands): New submarine eruption (updated 21 Jul 2024).
Karymsky (Kamchatka): smithsonian / USGS Weekly volcanic Activity Report (updated 1 Sep 2024).
Kilauea (Hawai’i): Smithsonian / USGS Weekly Volcanic Activity Report (updated 12 Mar 2025).
krakatau (Sunda Strait, Indonesia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 Dec 2023).
Lewotobi (flores): Volcanic Ash Advisory (updated 13 Feb 2025).
Lewotolo (Lesser Sunda Islands): Volcanic ash Advisory (updated 14 Mar 2025).
Marapi (Western Sumatra, Indonesia): Volcanic Ash Advisory (updated 17 Mar 2025).
Masaya (Nicaragua): Smithsonian / USGS Weekly Volcanic Activity Report (updated 24 Oct 2019).
Merapi (central Java, Indonesia): Smithsonian / USGS Weekly Volcanic Activity Report (updated 30 Jan 2025).
Michael (South Sandwich Islands, UK): Activity resumes; a thermal anomaly in the summit crater (updated 26 oct 2023).
Nyamuragira (DRCongo): Smithsonian / USGS Weekly volcanic Activity report (updated 17 Jan 2025).
Nyiragongo (drcongo): Smithsonian / USGS Weekly Volcanic Activity Report (updated 17 Apr 2024).
Popocatépetl (central Mexico): Volcanic Ash Advisory (updated 30 Oct 2024).
Reventador (Ecuador): volcanic Ash Advisory (updated 7 Jan 2025).
Sabancaya (Peru): Smithsonian / USGS Weekly Volcanic Activity Report (updated 14 feb 2023).
Sakurajima (Kyushu, Japan): Volcanic Ash Advisory (updated 10 Feb 2025).
Sangay (Ecuador): Volcanic Ash advisory (updated 9 Jul 2024).
Santiaguito (Guatemala): Volcanic Ash Advisory (updated 23 Oct 2024).
Semeru (East Java, Indonesia): Volcanic Ash Advisory (updated 9 Jan 2025).
Shiveluch (Kamchatka): Smithsonian / USGS Weekly Volcanic Activity Report (updated 3 Jan 2025).
Stromboli (Eolian Islands, Italy): Smithsonian / USGS Weekly Volcanic Activity Report (updated 10 Feb 2025).
Suwanose-jima (Ryukyu Islands): Smithsonian / USGS Weekly Volcanic activity Report (updated 12 Jan 2024).
Tinakula (Santa cruz Islands, Solomon Islands): Eruption continues with lava flows from summit vent (updated 22 Mar 2024).
Key Observations:
Volcanic Ash Advisories: A meaningful portion of the report revolves around Volcanic Ash Advisories (VAAC) issued by Darwin and Washington. These are crucial for aviation safety. The reports include altitude of the ash plume and direction of movement.
indonesia Active: Several Indonesian volcanoes (Semeru, Marapi, Dukono, Ibu, Krakatau, Lewotobi) show significant activity, including ongoing eruptions and VAAC reports.
Smithsonian/USGS Reports: Many entries refer to Smithsonian / USGS Weekly volcanic Activity Reports, indicating ongoing monitoring and documentation of these volcanoes.
“PSBL VA EMS”: The phrase “PSBL VA EMS,” indicates Possible Volcanic Ash Emission.
* “NO VA DTCTD”: Means “No Volcanic Ash Detected”
This compilation should give you a good overview of the global volcanic activity as reported on March 17,2025,based on the provided data.