Hazard Notification System (HANS) for Volcanoes

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Last 24 Hours

Alaska Volcano Observatory

2026-09-15 17:01:41 UTC, Great Sitkin, Shishaldin Daily Update

California Volcano Observatory

2026-09-15 17:00:53 UTC, Weekly Update

Hawaiian Volcano Observatory

2026-09-16 00:11:18 UTC, Kilauea Status Report ORANGE WATCH

2026-09-15 20:48:24 UTC, Kilauea Daily Update


Recent Notices

AVO | CalVO | CVO | HVO | NMI | YVO

Alaska Volcano Observatory

2026-09-15 17:01:41 UTC, Great Sitkin, Shishaldin Daily Update

2026-09-14 20:53:03 UTC, Great Sitkin, Shishaldin Daily Update

2026-09-13 18:56:31 UTC, Great Sitkin, Shishaldin Daily Update

2026-09-12 19:08:39 UTC, Great Sitkin, Shishaldin Daily Update

2026-09-11 19:48:03 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-09-10 18:12:58 UTC, Great Sitkin, Shishaldin Daily Update

2026-09-09 18:41:30 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-08 22:31:37 UTC, Kupreanof Volcano Observatory Notice for Aviation UNASSIGNED UNASSIGNED

2026-09-08 22:31:37 UTC, Kupreanof Volcano Activity Notification UNASSIGNED UNASSIGNED

2026-09-08 22:20:04 UTC, Kupreanof Volcano Activity Notification YELLOW ADVISORY

2026-09-08 22:20:04 UTC, Kupreanof Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-09-08 19:02:17 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-07 19:46:25 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-06 20:00:00 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-05 18:37:00 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-04 20:16:44 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-09-03 18:44:11 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-02 19:24:57 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-01 18:52:25 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-09-01 00:04:06 UTC, Katmai Volcano Activity Notification GREEN NORMAL

2026-09-01 00:04:06 UTC, Katmai Volcano Observatory Notice for Aviation GREEN NORMAL

2026-08-31 18:58:05 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-30 21:06:15 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-30 02:52:45 UTC, Katmai Volcano Observatory Notice for Aviation GREEN NORMAL

2026-08-30 02:52:45 UTC, Katmai Volcano Activity Notification GREEN NORMAL

2026-08-29 20:02:16 UTC, Great Sitkin, Shishaldin, Kupreanof Daily Update

2026-08-28 18:37:48 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-08-27 19:11:51 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-26 19:44:29 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-25 19:49:42 UTC, Great Sitkin, Shishaldin, Kupreanof Daily Update

2026-08-24 19:47:03 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-23 20:02:04 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-22 19:17:10 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-21 19:49:59 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-08-20 19:58:51 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-19 20:24:33 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-18 18:03:53 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-08-17 19:37:08 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

California Volcano Observatory

2026-09-15 17:00:53 UTC, Weekly Update

2026-09-08 18:56:54 UTC, Weekly Update

2026-09-01 20:12:42 UTC, Weekly Update

2026-08-25 17:04:15 UTC, Weekly Update

2026-08-18 17:28:29 UTC, Weekly Update

Cascades Volcano Observatory

2026-09-11 19:00:18 UTC, Cascade Range Weekly Update

2026-09-04 20:05:35 UTC, Cascade Range Weekly Update

2026-08-28 18:30:40 UTC, Cascade Range Weekly Update

2026-08-21 23:42:43 UTC, Cascade Range Weekly Update

Hawaiian Volcano Observatory

2026-09-16 00:11:18 UTC, Kilauea Status Report ORANGE WATCH

2026-09-15 20:48:24 UTC, Kilauea Daily Update

2026-09-14 19:37:12 UTC, Kilauea Daily Update

2026-09-13 19:15:50 UTC, Kilauea Daily Update

2026-09-13 18:33:53 UTC, Information Statement

2026-09-12 17:37:09 UTC, Kilauea Daily Update

2026-09-11 17:51:18 UTC, Kilauea Daily Update

2026-09-10 18:21:01 UTC, Kilauea Daily Update

2026-09-09 17:49:20 UTC, Kilauea Daily Update

2026-09-08 18:38:53 UTC, Kilauea Daily Update

2026-09-07 23:00:41 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-09-07 23:00:41 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-09-07 18:58:33 UTC, Kilauea Daily Update

2026-09-06 18:35:35 UTC, Kilauea Daily Update

2026-09-05 18:32:40 UTC, Kilauea Daily Update

2026-09-04 18:07:31 UTC, Kilauea Daily Update

2026-09-03 19:02:37 UTC, Kilauea Daily Update

2026-09-03 18:56:27 UTC, Ofu-Olosega, Ta'u Island, Tutuila Island Monthly Update

2026-09-03 18:41:34 UTC, Mauna Loa, Hualalai, Haleakala, Mauna Kea, Kama'ehuakanaloa Monthly Update

2026-09-02 19:30:04 UTC, Kilauea Daily Update

2026-09-01 19:02:11 UTC, Kilauea Daily Update

2026-08-31 18:30:28 UTC, Kilauea Daily Update

2026-08-30 18:35:45 UTC, Kilauea Daily Update

2026-08-29 19:26:23 UTC, Kilauea Daily Update

2026-08-28 19:15:52 UTC, Kilauea Daily Update

2026-08-27 18:05:02 UTC, Kilauea Daily Update

2026-08-26 19:00:56 UTC, Kilauea Daily Update

2026-08-26 06:22:43 UTC, Kilauea Status Report YELLOW ADVISORY

2026-08-26 05:47:11 UTC, Kilauea Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-08-26 05:47:11 UTC, Kilauea Volcano Activity Notification YELLOW ADVISORY

2026-08-25 22:23:33 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-08-25 22:23:33 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-08-25 20:43:21 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-08-25 20:43:21 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-08-25 20:03:27 UTC, Kilauea Daily Update

2026-08-25 16:38:52 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-08-25 16:38:52 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-08-24 20:00:46 UTC, Kilauea Daily Update

2026-08-23 19:20:57 UTC, Kilauea Daily Update

2026-08-22 19:32:03 UTC, Kilauea Daily Update

2026-08-21 19:25:46 UTC, Kilauea Daily Update

2026-08-20 19:06:40 UTC, Kilauea Daily Update

2026-08-19 19:20:20 UTC, Kilauea Daily Update

2026-08-18 18:39:49 UTC, Kilauea Daily Update

2026-08-17 20:07:24 UTC, Information Statement

2026-08-17 20:00:15 UTC, Kilauea Daily Update

Northern Mariana Islands

2026-09-10 23:25:53 UTC, Ahyi Seamount Weekly Update

2026-09-03 23:17:57 UTC, Ahyi Seamount Weekly Update

2026-08-27 23:20:59 UTC, Ahyi Seamount Weekly Update

2026-08-21 00:01:54 UTC, Ahyi Seamount Weekly Update

Yellowstone Volcano Observatory

2026-09-02 00:55:45 UTC, Yellowstone Monthly Update

Elevated Volcanoes

Alaska Volcano Observatory

Great Sitkin 2026-09-15 17:01:41 UTC ORANGE WATCH
Shishaldin 2026-09-15 17:01:41 UTC YELLOW ADVISORY

Hawaiian Volcano Observatory

Kilauea 2026-09-16 00:11:18 UTC ORANGE WATCH

Northern Mariana Islands

Ahyi Seamount 2026-09-10 23:25:53 UTC YELLOW ADVISORY


Common Alerting Protocol RSS Feed

Monitored Volcanoes

Alaska Volcano Observatory

Akutan 2019-09-06 18:29:39 UTC GREEN NORMAL
Alaskan Volcanoes 2010-08-20 20:39:48 UTC GREEN NORMAL
Aniakchak 2026-05-05 22:31:29 UTC GREEN NORMAL
Atka volcanic complex 2026-07-21 20:08:42 UTC GREEN NORMAL
Augustine 2019-09-06 18:29:39 UTC GREEN NORMAL
Cleveland 2024-07-08 21:06:48 UTC GREEN NORMAL
Dutton 2019-09-06 18:29:39 UTC GREEN NORMAL
Edgecumbe 2024-02-09 19:57:42 UTC GREEN NORMAL
Fisher 2026-03-09 19:18:33 UTC GREEN NORMAL
Gareloi 2024-03-05 20:50:34 UTC GREEN NORMAL
Great Sitkin 2026-09-15 17:01:41 UTC ORANGE WATCH
Griggs 2022-03-18 23:33:23 UTC GREEN NORMAL
Iliamna 2026-08-14 21:05:43 UTC GREEN NORMAL
Isanotski UTC GREEN NORMAL
Kanaga 2024-02-27 20:55:59 UTC GREEN NORMAL
Katmai 2026-09-01 00:04:06 UTC GREEN NORMAL
Korovin 2020-12-04 20:29:15 UTC GREEN NORMAL
Little Sitkin 2022-07-14 22:40:33 UTC GREEN NORMAL
Mageik 2023-01-11 23:08:56 UTC GREEN NORMAL
Makushin 2020-12-16 00:59:56 UTC GREEN NORMAL
Martin 2023-01-11 23:08:56 UTC GREEN NORMAL
Novarupta 2022-03-18 23:33:23 UTC GREEN NORMAL
Okmok 2026-01-30 02:55:41 UTC GREEN NORMAL
Pavlof 2026-01-23 21:37:59 UTC GREEN NORMAL
Redoubt 2010-04-23 20:27:31 UTC GREEN NORMAL
Semisopochnoi 2026-02-27 20:55:44 UTC GREEN NORMAL
Shishaldin 2026-09-15 17:01:41 UTC YELLOW ADVISORY
Snowy Mountain 2022-03-18 23:33:23 UTC GREEN NORMAL
Spurr 2025-08-22 19:07:53 UTC GREEN NORMAL
Takawangha 2024-01-29 23:13:47 UTC GREEN NORMAL
Tanaga 2024-01-29 23:13:47 UTC GREEN NORMAL
Trident 2024-01-10 20:04:36 UTC GREEN NORMAL
Ugashik-Peulik 2022-10-19 23:05:08 UTC GREEN NORMAL
Ukinrek Maars 2022-10-19 23:05:08 UTC GREEN NORMAL
Veniaminof 2021-07-09 21:30:29 UTC GREEN NORMAL
Westdahl 2026-03-09 19:18:33 UTC GREEN NORMAL
Wrangell 2024-10-01 18:04:56 UTC GREEN NORMAL

California Volcano Observatory

Clear Lake Volcanic Field UTC GREEN NORMAL
Coso Volcanic Field 2019-07-11 23:36:44 UTC GREEN NORMAL
Lassen Volcanic Center 2009-11-18 16:05:08 UTC GREEN NORMAL
Long Valley Caldera 2012-01-13 01:46:31 UTC GREEN NORMAL
Mammoth Mountain UTC GREEN NORMAL
Medicine Lake volcano UTC GREEN NORMAL
Mono Lake Volcanic Field UTC GREEN NORMAL
Mono-Inyo Craters UTC GREEN NORMAL
Mount Shasta UTC GREEN NORMAL
Salton Buttes UTC GREEN NORMAL
Ubehebe Craters UTC GREEN NORMAL

Cascades Volcano Observatory

Cascade Range 2026-09-11 19:00:18 UTC GREEN NORMAL
Crater Lake UTC GREEN NORMAL
Glacier Peak UTC GREEN NORMAL
Mount Adams 2024-10-03 19:37:15 UTC GREEN NORMAL
Mount Baker UTC GREEN NORMAL
Mount Hood 2021-06-06 04:38:06 UTC GREEN NORMAL
Mount Jefferson UTC GREEN NORMAL
Mount Rainier 2025-08-25 22:38:40 UTC GREEN NORMAL
Mount St. Helens 2025-09-16 17:42:02 UTC GREEN NORMAL
Newberry 2024-12-18 21:47:10 UTC GREEN NORMAL
Three Sisters 2022-01-31 20:45:17 UTC GREEN NORMAL

Hawaiian Volcano Observatory

Haleakala 2026-09-03 18:41:34 UTC GREEN NORMAL
Hualalai 2026-09-03 18:41:34 UTC GREEN NORMAL
Kilauea 2026-09-16 00:11:18 UTC ORANGE WATCH
Mauna Kea 2026-09-03 18:41:34 UTC GREEN NORMAL
Mauna Loa 2026-09-03 18:41:34 UTC GREEN NORMAL
Ofu-Olosega 2026-09-03 18:56:27 UTC GREEN NORMAL
Ta'u Island 2026-09-03 18:56:27 UTC GREEN NORMAL
Tutuila Island 2026-09-03 18:56:27 UTC GREEN NORMAL

Northern Mariana Islands

Ahyi Seamount 2026-09-10 23:25:53 UTC YELLOW ADVISORY

Yellowstone Volcano Observatory

Yellowstone 2026-09-02 00:55:45 UTC GREEN NORMAL