Hazard Notification System (HANS) for Volcanoes

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Last 24 Hours

Alaska Volcano Observatory

2026-07-31 19:45:49 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

Cascades Volcano Observatory

2026-07-31 19:05:29 UTC, Cascade Range Weekly Update

Hawaiian Volcano Observatory

2026-07-31 19:06:29 UTC, Kilauea Daily Update

Yellowstone Volcano Observatory

2026-08-01 15:05:23 UTC, Yellowstone Monthly Update


Recent Notices

AVO | CalVO | CVO | HVO | NMI | YVO

Alaska Volcano Observatory

2026-07-31 19:45:49 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-07-30 19:05:54 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-29 18:51:43 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-28 19:57:13 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-27 19:44:38 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-26 19:42:11 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-25 18:09:16 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-25 00:19:12 UTC, Katmai Volcano Activity Notification GREEN NORMAL

2026-07-25 00:19:12 UTC, Katmai Volcano Observatory Notice for Aviation GREEN NORMAL

2026-07-24 19:39:56 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-07-23 21:08:26 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-22 19:07:40 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-21 20:12:32 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-21 20:08:42 UTC, Atka volcanic complex Volcano Observatory Notice for Aviation GREEN NORMAL

2026-07-21 20:08:42 UTC, Atka volcanic complex Volcano Activity Notification GREEN NORMAL

2026-07-20 20:02:56 UTC, Atka volcanic complex, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-19 20:25:42 UTC, Great Sitkin, Kupreanof, Shishaldin, Atka volcanic complex Daily Update

2026-07-18 19:40:52 UTC, Great Sitkin, Kupreanof, Shishaldin, Atka volcanic complex Daily Update

2026-07-17 20:55:16 UTC, Great Sitkin, Kupreanof, Shishaldin, Atka volcanic complex Weekly Update

2026-07-16 20:18:17 UTC, Great Sitkin, Kupreanof, Shishaldin, Atka volcanic complex Daily Update

2026-07-16 13:03:29 UTC, Atka volcanic complex Volcano Activity Notification YELLOW ADVISORY

2026-07-16 13:03:29 UTC, Atka volcanic complex Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-07-15 20:19:58 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-14 21:22:17 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-13 20:22:40 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-12 18:54:55 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-11 19:48:39 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-10 20:27:56 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-07-09 19:28:12 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-08 19:25:37 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-07 19:04:57 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-06 19:34:56 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-05 19:59:36 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-04 20:11:15 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

2026-07-03 20:06:55 UTC, Great Sitkin, Kupreanof, Shishaldin Weekly Update

2026-07-02 19:35:08 UTC, Great Sitkin, Kupreanof, Shishaldin Daily Update

California Volcano Observatory

2026-07-28 15:58:42 UTC, Weekly Update

2026-07-21 17:17:47 UTC, Weekly Update

2026-07-14 16:20:24 UTC, Weekly Update

2026-07-07 17:17:22 UTC, Weekly Update

Cascades Volcano Observatory

2026-07-31 19:05:29 UTC, Cascade Range Weekly Update

2026-07-24 20:16:55 UTC, Cascade Range Weekly Update

2026-07-17 19:05:30 UTC, Cascade Range Weekly Update

2026-07-10 17:53:58 UTC, Cascade Range Weekly Update

2026-07-03 17:52:51 UTC, Cascade Range Weekly Update

Hawaiian Volcano Observatory

2026-07-31 19:06:29 UTC, Kilauea Daily Update

2026-07-30 19:32:16 UTC, Kilauea Daily Update

2026-07-29 19:10:38 UTC, Kilauea Daily Update

2026-07-29 13:19:12 UTC, Kilauea Status Report YELLOW ADVISORY

2026-07-29 13:01:54 UTC, Kilauea Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-07-29 13:01:54 UTC, Kilauea Volcano Activity Notification YELLOW ADVISORY

2026-07-29 07:36:48 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-29 07:36:48 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-29 05:31:24 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-29 05:31:24 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-28 20:48:08 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-28 20:48:08 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-28 19:21:49 UTC, Kilauea Daily Update

2026-07-27 19:05:30 UTC, Kilauea Daily Update

2026-07-26 18:45:06 UTC, Kilauea Daily Update

2026-07-25 19:00:40 UTC, Kilauea Daily Update

2026-07-24 19:04:53 UTC, Kilauea Daily Update

2026-07-23 19:10:16 UTC, Kilauea Daily Update

2026-07-22 18:55:03 UTC, Kilauea Daily Update

2026-07-21 19:42:01 UTC, Kilauea Daily Update

2026-07-20 17:53:06 UTC, Kilauea Daily Update

2026-07-19 19:06:55 UTC, Kilauea Daily Update

2026-07-18 18:46:39 UTC, Kilauea Daily Update

2026-07-17 18:45:35 UTC, Kilauea Daily Update

2026-07-16 19:55:48 UTC, Kilauea Daily Update

2026-07-16 04:08:25 UTC, Kilauea Status Report YELLOW ADVISORY

2026-07-16 03:06:24 UTC, Kilauea Volcano Activity Notification YELLOW ADVISORY

2026-07-16 03:06:24 UTC, Kilauea Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-07-15 20:36:24 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-15 20:36:24 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-15 19:07:51 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-15 19:07:51 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-15 18:05:24 UTC, Kilauea Daily Update

2026-07-15 01:29:03 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2026-07-15 01:29:03 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2026-07-14 20:07:23 UTC, Kilauea Daily Update

2026-07-14 01:00:19 UTC, Kilauea Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-07-14 01:00:19 UTC, Kilauea Volcano Activity Notification YELLOW ADVISORY

2026-07-13 18:16:36 UTC, Kilauea Daily Update

2026-07-12 19:21:46 UTC, Kilauea Daily Update

2026-07-11 19:09:00 UTC, Kilauea Daily Update

2026-07-10 19:01:14 UTC, Kilauea Daily Update

2026-07-10 07:30:48 UTC, Information Statement

2026-07-09 18:35:33 UTC, Kilauea Daily Update

2026-07-08 18:55:08 UTC, Kilauea Daily Update

2026-07-07 19:15:18 UTC, Kilauea Daily Update

2026-07-06 18:32:29 UTC, Kilauea Daily Update

2026-07-05 17:00:57 UTC, Kilauea Daily Update

2026-07-04 17:47:00 UTC, Kilauea Daily Update

2026-07-03 18:30:10 UTC, Kilauea Daily Update

2026-07-02 19:50:34 UTC, Ofu-Olosega, Ta'u Island, Tutuila Island Monthly Update

2026-07-02 19:33:30 UTC, Kilauea Daily Update

2026-07-02 15:20:38 UTC, Mauna Loa, Hualalai, Haleakala, Mauna Kea, Kama'ehuakanaloa Monthly Update

Northern Mariana Islands

2026-07-30 21:02:46 UTC, Ahyi Seamount Weekly Update

2026-07-23 23:43:58 UTC, Ahyi Seamount Weekly Update

2026-07-16 22:40:53 UTC, Ahyi Seamount Weekly Update

2026-07-16 00:13:50 UTC, Ahyi Seamount Volcano Activity Notification YELLOW ADVISORY

2026-07-16 00:13:50 UTC, Ahyi Seamount Volcano Observatory Notice for Aviation YELLOW ADVISORY

2026-07-09 23:19:36 UTC, Weekly Update

2026-07-02 20:47:12 UTC, Weekly Update

Yellowstone Volcano Observatory

2026-08-01 15:05:23 UTC, Yellowstone Monthly Update

Elevated Volcanoes

Alaska Volcano Observatory

Great Sitkin 2026-07-31 19:45:49 UTC ORANGE WATCH
Kupreanof 2026-07-31 19:45:49 UTC YELLOW ADVISORY
Shishaldin 2026-07-31 19:45:49 UTC YELLOW ADVISORY

Hawaiian Volcano Observatory

Kilauea 2026-07-31 19:06:29 UTC YELLOW ADVISORY

Northern Mariana Islands

Ahyi Seamount 2026-07-30 21:02:46 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 2026-07-31 19:45:49 UTC ORANGE WATCH
Griggs 2022-03-18 23:33:23 UTC GREEN NORMAL
Iliamna 2025-07-04 17:37:25 UTC GREEN NORMAL
Isanotski UTC GREEN NORMAL
Kanaga 2024-02-27 20:55:59 UTC GREEN NORMAL
Katmai 2026-07-25 00:19:12 UTC GREEN NORMAL
Korovin 2020-12-04 20:29:15 UTC GREEN NORMAL
Kupreanof 2026-07-31 19:45:49 UTC YELLOW ADVISORY
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 2026-07-31 19:45:49 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 2026-07-31 19:05:29 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 2026-07-02 15:20:38 UTC GREEN NORMAL
Hualalai 2026-07-02 15:20:38 UTC GREEN NORMAL
Kilauea 2026-07-31 19:06:29 UTC YELLOW ADVISORY
Mauna Kea 2026-07-02 15:20:38 UTC GREEN NORMAL
Mauna Loa 2026-07-02 15:20:38 UTC GREEN NORMAL
Ofu-Olosega 2026-07-02 19:50:34 UTC GREEN NORMAL
Ta'u Island 2026-07-02 19:50:34 UTC GREEN NORMAL
Tutuila Island 2026-07-02 19:50:34 UTC GREEN NORMAL

Northern Mariana Islands

Ahyi Seamount 2026-07-30 21:02:46 UTC YELLOW ADVISORY

Yellowstone Volcano Observatory

Yellowstone 2026-08-01 15:05:23 UTC GREEN NORMAL