Volcanic activity saw notable shifts today: the Philippines’ Mayon intensified, Indonesia’s Semeru was raised to Level 3, Colombia’s Purace dropped to Yellow, and ash from Guatemala’s Fuego reached nearby towns. Elsewhere, regular explosions persisted at Sabancaya and Santa Maria, while continuous tremor continued at Taal. Lewotolok’s activity eased even as monitoring still detected numerous explosions.
Indonesia
Semeru (Level 3 – Standby) was elevated after monitoring registered 119 explosions and several rockfalls. Eruptive activity at Lewotolok eased, though 254 explosions were still detected. Low plumes and rockfalls accompanied ongoing activity at Ibu, Merapi, Marapi, and Dukono. Unrest persisted at several others on Levels 2–3, including Raung and Kerinci.
Philippines
At Mayon (Level 3), lava effusion, dome-collapse rockfalls, and minor Strombolian bursts were accompanied by frequent PDC-related seismic signals. Plumes at Kanlaon rose to 800 m, while low-level unrest persisted at Taal with plumes to 300 m and continuous tremor since 21 January.
Mexico
Popocatepetl (Yellow Phase 2) produced gas-and-steam emissions and a M2.4 VT earthquake.
South America
Purace stepped down to Yellow as ash emissions and seismic energy declined and a crater thermal anomaly faded. Peru’s Sabancaya sent ash-and-gas up to 1 km with a handful of quakes; in Ecuador, activity increased at Sangay while eruption at Reventador continued.
Other
Guatemala’s Fuego lofted ash to about 700 m and produced ashfall in San Pedro Yepocapa, Panimache Uno and Dos, Morelia, and Santa Sofia. Nearby Santa Maria saw up to four explosions per hour with incandescent rockfalls, and weak gas rose from Pacaya. In Costa Rica, Poas featured a largely dry Laguna Caliente with low tremor and minor fumaroles, while Rincon de la Vieja and Turrialba remained at Level 2; Irazu stayed calm.
Source: Smithsonian/USGS GVP Daily Volcanic Activity Report (22 Jan 2026).
Activity Summary for 22 January 2026
| Volcano | Country | Activity Type | Keynotes |
|---|---|---|---|
| Dukono | Indonesia | Eruption | Eruption ongoing; Alert Level 2 – Alert. |
| Fuego | Guatemala | Eruption | ~737 m ash plumes; ashfall in multiple towns; explosions with rockfalls. |
| Ibu | Indonesia | Eruption | 114 explosions; gas plumes to 200 m. |
| Kanlaon | Philippines | Eruption | Plumes to 800 m; ongoing activity. |
| Lewotolok | Indonesia | Eruption | Activity decreased; 254 explosions detected. |
| Marapi | Indonesia | Eruption | Gas-and-steam plume to 150 m. |
| Mayon | Philippines | Eruption | Lava effusion with dome-collapse rockfalls; minor Strombolian bursts; elevated seismicity/PDC signals. |
| Merapi | Indonesia | Eruption | 10 hot rockfalls to 1.5 km; 100 rockfall quakes; gas plume 25 m. |
| Popocatepetl | Mexico | Eruption | Gas-and-steam emissions; M2.4 VT earthquake. |
| Poas | Costa Rica | Eruption | Laguna Caliente largely dry; low tremor with sporadic LPs; weak fumaroles, SO2 trending down. |
| Purace | Colombia | Eruption | Ash emissions decreased; LP/tremor energy down; crater thermal anomaly faded. |
| Reventador | Ecuador | Eruption | Eruption ongoing; Alert Level 3 – Orange. |
| Sabancaya | Peru | Eruption | Ash/gas plumes to 1,000 m; 6 quakes linked to magma/gas movement. |
| Sangay | Ecuador | Eruption | Activity increased; Alert Level 2 – Yellow. |
| Santa Maria | Guatemala | Eruption | Up to 4 explosions/hr; gas plumes 400 m; incandescent rockfalls, crater glow. |
| Semeru | Indonesia | Eruption | 119 explosions; 6 rockfalls. |
| Taal | Philippines | Eruption | Plumes to 300 m; continuous tremor since 21 Jan 0900. |
| Awu | Indonesia | Unrest | Gas-and-steam plume 20 m; ongoing unrest. |
| Bur ni Telong | Indonesia | Unrest | Ongoing unrest; Alert Level 2 – Alert. |
| Iliwerung | Indonesia | Unrest | Ongoing unrest; Alert Level 2 – Alert. |
| Kerinci | Indonesia | Unrest | Ongoing unrest; Alert Level 2 – Alert. |
| Lewotobi | Indonesia | Unrest | 1 rockfall event; ongoing unrest. |
| Lokon-Empung | Indonesia | Unrest | Gas-and-steam plume 25 m; ongoing unrest. |
| Pacaya | Guatemala | Unrest | Gas plumes to 150 m; ongoing unrest. |
| Raung | Indonesia | Unrest | Ongoing unrest; Alert Level 2 – Alert. |
| Rincon de la Vieja | Costa Rica | Unrest | Ongoing unrest; Alert Level 2 – Warning; Aviation Yellow. |
| Soputan | Indonesia | Unrest | Ongoing unrest; Alert Level 2 – Alert. |
| Turrialba | Costa Rica | Unrest | Ongoing unrest; Alert Level 2 – Warning. |
| Irazu | Costa Rica | Background | Stable CO2 482 ppm and H2S 0.9 ppm; background state. |
| Talang | Indonesia | Background | Weak gas plume 25 m; background state. |
| Tangkuban Parahu | Indonesia | Background | Background state; Alert Level 1 – Normal. |