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Volcanic Ash HYSPLIT trajectory and dispersion runs are generated in response to alerts produced by the volcanic cloud monitoring system (VOLCAT)

Choose a volcano:


VOLCAT Alerts and corresponding HYSPLIT trajectory and dispersion runs for the last 48 hours

Trajectory and dispersion runs are generated when an alert is received

Date and Time (UTC): Alert Type Location
(lat, lon)
Nearby Volcanoes VAAC Region HYSPLIT Trajectories HYSPLIT Dispersion
Alert 0 01/23/2021 at 18:05 UTC hot -2.0, -78.34 Sangay | Licto Washington
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  • Alert 1 01/23/2021 at 17:36 UTC ash -15.78, -71.85 Sabancaya | Huambo | Nicholson, Cerro | Chachani, Nevado | Andahua-Orcopampa Buenos Aires
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  • Alert 2 01/23/2021 at 17:30 UTC ash -59.06, -26.59 Bristol Island | Thule Islands | Montagu Island | Michael | Candlemas Island Buenos Aires
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  • Alert 3 01/23/2021 at 17:22 UTC hot 19.4, -155.3 Kilauea | Mauna Loa | Mauna Kea Washington
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  • Alert 4 01/23/2021 at 17:02 UTC hot 19.4, -155.3 Kilauea | Mauna Loa | Mauna Kea Washington
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  • Alert 5 01/23/2021 at 16:37 UTC hot -26.61, -68.1 Peinado Buenos Aires
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  • Alert 6 01/23/2021 at 16:35 UTC ash 31.59, 130.66 Aira | Yonemaru-Sumiyoshiike | Ibusuki Volcanic Field | Kirishimayama | Kikai Tokyo
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  • Alert 7 01/23/2021 at 16:33 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • Alert 8 01/23/2021 at 16:30 UTC hot -1.53, 29.26 Nyiragongo | Nyamuragira | Karisimbi | Visoke | Muhavura Toulouse
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  • Alert 9 01/23/2021 at 16:13 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • Alert 10 01/23/2021 at 16:13 UTC ash 13.33, -61.18 Soufriere St. Vincent | Qualibou | | St. Catherine | Pelee Washington
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  • Alert 11 01/23/2021 at 15:58 UTC ash 19.02, -98.62 Popocatepetl | Iztaccihuatl | Papayo | Chichinautzin | Malinche, La Washington
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  • Alert 12 01/23/2021 at 15:58 UTC ash -39.42, -71.93 Villarrica | Quetrupillan | Caburgua-Huelemolle | Lanin | Mocho-Choshuenco Buenos Aires
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  • Alert 13 01/23/2021 at 15:52 UTC hot 19.4, -155.3 Kilauea | Mauna Loa | Mauna Kea Washington
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  • Alert 14 01/23/2021 at 15:44 UTC hot -5.36, 151.14 Hargy Darwin
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  • Alert 15 01/23/2021 at 15:43 UTC ash 14.47, -90.88 Fuego | Acatenango | Agua | Pacaya | Atitlan Washington
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  • Alert 16 01/23/2021 at 15:35 UTC hot -2.0, -78.34 Sangay | Licto Washington
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  • Alert 17 01/23/2021 at 15:32 UTC hot 19.41, -155.23 Kilauea | Mauna Loa Washington
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  • Alert 18 01/23/2021 at 15:15 UTC hot -2.0, -78.34 Sangay | Licto Washington
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  • Alert 19 01/23/2021 at 15:13 UTC ash 14.38, -90.6 Pacaya | Agua | Cuilapa-Barbarena | Fuego | Acatenango Washington
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  • 3hrs

  • 6hrs