Dukono blasts to 10 km as Santa Maria sends pyroclastic flows; alerts steady

A towering ash column at Indonesia’s Dukono and short-run pyroclastic flows from Guatemala’s Santa Maria stood out today. Japan’s Sakurajima intensified with bombs thrown more than a kilometer from the crater, while Mayon in the Philippines kept lava flowing on multiple flanks. Compared to yesterday, ash emissions were newly reported at Dukono and Santa Maria; most other alert levels and activity states were unchanged.

United States
Lava continued to slowly emerge at Great Sitkin (Watch / Aviation ORANGE), with rockfalls from the growing summit dome. At Kilauea (Advisory / Aviation YELLOW), eruptive activity stayed paused but vents showed persistent glow and small areas of incandescence. Shishaldin (Advisory / Aviation YELLOW) produced vapor and SO2 emissions alongside a thermal anomaly.

Indonesia
Dukono produced a ~16-minute eruption with an ash column rising about 10 km above the crater and drifting north, amid harmonic tremor and audible booms. Frequent bursts persisted at Ibu, with 123 explosions and ash-and-gas to 600 m, while Semeru sent 68 ash plumes up to 1.2 km. On Java, Merapi generated hot rockfalls traveling up to 1.8 km; several others—including Lewotolok, Lewotobi, Marapi, and Raung—showed low plumes or minor explosions with alerts mostly at Level 2–3.

Japan
Sakurajima intensified: one explosion lofted a plume to 3.5 km and ejected large bombs 1–1.3 km from Minamidake; Alert Level 3 remained in effect.

Philippines
Lava effusion continued at Mayon (Alert Level 3), with flows 3.8 km east, 3.2 km southeast, and 1.6 km south, plus minor Strombolian bursts and frequent rockfalls. Taal produced a brief 6-minute phreatic burst and shows inflationary deformation (Alert Level 1). Kanlaon emitted gas plumes to 200 m with elevated SO2 (~2,062 t/d) and ongoing seismicity (Alert Level 2). Unrest persisted at Bulusan with 57 volcanic earthquakes recorded (Alert Level 1).

Mexico
At Popocatepetl (Yellow Alert – Phase 2), 107 exhalations and about 45 minutes of tremor accompanied ash, gas, and steam emissions.

South America
In Ecuador, Reventador (81 explosions) sent ash up to 1.6 km with incandescent rockfalls down 1 km, while Sangay logged 291 explosions and ash to 1.5 km. Peru’s Sabancaya produced ash-and-gas plumes to 1.1 km along with several internal earthquakes and thermal anomalies.

Other
In Kamchatka, Sheveluch showed lava-dome growth and lava flows with gas plumes (Aviation ORANGE), while Bezymianny and Krasheninnikov displayed effusive activity and thermal anomalies (Aviation YELLOW). In Guatemala, Fuego produced explosions with ashfall in multiple communities, and Santa Maria generated avalanches and short-run pyroclastic flows from the Caliente Dome; nearby Pacaya released gas-and-vapor plumes.

Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (8 May 2026).

Activity Summary for 8 May 2026

Volcano Country Activity Type Keynotes
Sakurajima Japan Eruption Activity uptick; 1 explosion; bombs 1–1.3 km from crater; plume to 3.5 km.
Bezymianny Russia Eruption Effusive eruption; gas-and-vapor plumes; thermal anomaly.
Dukono Indonesia Eruption ~16 min eruption; ash column to 10 km drifting N; harmonic tremor and booming.
Fuego Guatemala Eruption Explosions; ash to ~0.9 km; ashfall in nearby towns; incandescent rockfalls.
Great Sitkin United States Eruption Lava effusing in summit crater; rockfalls from growing dome; seismic signals.
Ibu Indonesia Eruption 123 explosions; ash-and-gas plumes to 600 m; gas plumes to 200 m.
Kilauea United States Paused Eruption paused; persistent vent glow; small incandescence on crater floor.
Kanlaon Philippines Eruption Gas plumes to 200 m; 18 quakes; SO2 ~2,062 t/d; inflationary trend.
Krasheninnikov Russia Eruption Effusive eruption with lava flows; gas-and-vapor plumes; thermal anomaly.
Lewotobi Indonesia Eruption Gas plumes to 100 m; low-frequency seismicity.
Lewotolok Indonesia Eruption Ash-and-gas emissions to 100 m; 1 explosion.
Marapi Indonesia Eruption Eruption ongoing; Alert Level 2 – Alert.
Mayon Philippines Eruption Lava effusion; flows 3.8 km E, 3.2 km SE, 1.6 km S; minor Strombolian bursts; frequent rockfalls.
Merapi Indonesia Eruption Hot rockfalls to 1.8 km; gas plumes 100 m; >100 rockfalls recorded.
Popocatepetl Mexico Eruption 107 exhalations; ash/gas emissions; ~45 min tremor plus brief sequences.
Reventador Ecuador Eruption 81 explosions; ash to 1.6 km; incandescent rockfalls to 1 km; thermal anomaly.
Sabancaya Peru Eruption Ash/gas to 1.1 km; 9 internal quakes; 4 thermal anomalies.
Sangay Ecuador Eruption 291 explosions; ash to 1.5 km; incandescent rockfalls to 800 m.
Santa Maria Guatemala Eruption Avalanches and short PDCs at Caliente Dome; plumes to ~3.2 km asl; ashfall nearby.
Semeru Indonesia Eruption 68 explosions; ash to 1.2 km; 2 rockfalls.
Sheveluch Russia Eruption Lava dome growth with lava flows; gas-and-vapor plumes; thermal anomaly.
Taal Philippines Eruption Minor 6‑min phreatic burst at 0446; ongoing inflationary deformation.
Bulusan Philippines Unrest Ongoing unrest; 57 volcanic quakes; inflationary deformation.
Bur ni Telong Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Dempo Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Gamalama Indonesia Unrest Gas-and-vapor plumes to 200 m; unrest persists.
Karangetang Indonesia Unrest Gas plumes to 700 m; vent incandescence 10–20 m; gas-emission quakes.
Kerinci Indonesia Unrest Gas plumes to 250 m; unrest.
Krakatau Indonesia Unrest Low gas plumes ~10 m; unrest.
Lokon-Empung Indonesia Unrest Gas plumes to 25 m; unrest.
Pacaya Guatemala Unrest Gas-and-vapor emissions; unrest.
Raung Indonesia Unrest Gas plumes to 100 m; unrest.
Shishaldin United States Unrest Vapor and SO2 emissions; thermal anomaly; unrest ongoing.
Slamet Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Soputan Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Sorikmarapi Indonesia Unrest Ongoing unrest; Alert Level 2 – Alert.
Tambora Indonesia Unrest Two rockfalls detected; unrest.
Ijen Indonesia Background Minor gas plumes to 100 m; background activity.
Kupreanof United States Unassigned Status unassigned; Alert Level Unassigned; Aviation Unassigned.
Tangkuban Parahu Indonesia Background Gas-and-vapor emissions; background activity.