Sheveluch
FVXX23 at 17:49 UTC, 20/03/26 from KNES VA ADVISORY DTG: 20260320/1743Z VAAC: WASHINGTON VOLCANO: SHEVELUCH 300270 PSN: N5638 E16121 AREA: KAMCHATKA SOURCE ELEV: 10771 FT AMSL ADVISORY NR: 2026/012 INFO SOURCE: GOES-18. ANCHORAGE VAAC. NWP MODELS. ERUPTION DETAILS: REMNANT VA OVER N PACIFIC OBS VA DTG: 18/1721Z OBS VA CLD: FL200/360 N4820 W16707 - N4435 W15708 - N4252 W15741 - N4646 W16908 - N4820 W16707 MOV SE 75KT FCST VA CLD +6HR: 18/2330Z FL200/360 N4520 W15746 - N4150 W14646 - N3917 W14830 - N4301 W15924 - N4520 W15746 FCST VA CLD +12HR: 19/0530Z NO VA EXP FCST VA CLD +18HR: 19/1130Z NO VA EXP RMK: VAAC ANCHORAGE HAS TRANSFERRED RESPONSIBILITY FOR THIS EVENT TO VAAC WASHINGTON. REMNANT VA HAS MOVD INTO THE N PAC SW OF THE GULF OF AK ARND UL CYCLONE OVR S AK. VA OBSD THINNING AND STRETCHING. FL TAKEN FM PREV VAA. NWP MDLS AGREE AND FCST CONTD ESE MOVMT BFR DSIPTG ARND OR AFTER T+6. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20260320/2345Z
Sheveluch
The high, isolated massif of Sheveluch volcano (also spelled Shiveluch) rises above the lowlands NNE of the Kliuchevskaya volcano group. The 1,300 km3 andesitic volcano is one of Kamchatka's largest and most active volcanic structures, with at least 60 large eruptions during the Holocene. The summit of roughly 65,000-year-old Stary Shiveluch is truncated by a broad 9-km-wide late-Pleistocene caldera breached to the south. Many lava domes occur on its outer flanks. The Molodoy Shiveluch lava dome complex was constructed during the Holocene within the large open caldera; Holocene lava dome extrusion also took place on the flanks of Stary Shiveluch. Widespread tephra layers from these eruptions have provided valuable time markers for dating volcanic events in Kamchatka. Frequent collapses of dome complexes, most recently in 1964, have produced debris avalanches whose deposits cover much of the floor of the breached caldera.
View Full Volcano Details