Hazard Notification System (HANS) for Volcanoes

Home | VONAs | Volcano Notice Search | Resources


USGS Volcano Notifications

Back

Last 24 Hours

Alaska Volcano Observatory

2025-08-19 18:46:21 UTC, Great Sitkin, Spurr Daily Update

California Volcano Observatory

2025-08-19 17:19:47 UTC, Weekly Update


Recent Notices

AVO | CalVO | CVO | HVO | NMI | YVO

Alaska Volcano Observatory

2025-08-19 18:46:21 UTC, Great Sitkin, Spurr Daily Update

2025-08-18 20:11:02 UTC, Great Sitkin, Spurr Daily Update

2025-08-17 18:15:24 UTC, Great Sitkin, Spurr Daily Update

2025-08-16 18:50:24 UTC, Great Sitkin, Spurr Daily Update

2025-08-15 21:32:49 UTC, Katmai Information Statement GREEN NORMAL

2025-08-15 20:45:42 UTC, Great Sitkin, Spurr Weekly Update

2025-08-14 18:40:59 UTC, Great Sitkin, Spurr Daily Update

2025-08-13 19:21:53 UTC, Great Sitkin, Spurr Daily Update

2025-08-12 19:22:59 UTC, Great Sitkin, Spurr Daily Update

2025-08-11 20:06:33 UTC, Great Sitkin, Spurr Daily Update

2025-08-10 19:37:30 UTC, Great Sitkin, Spurr Daily Update

2025-08-09 20:11:31 UTC, Great Sitkin, Spurr Daily Update

2025-08-08 19:31:19 UTC, Great Sitkin, Spurr Weekly Update

2025-08-07 20:17:01 UTC, Great Sitkin, Spurr Daily Update

2025-08-06 20:48:56 UTC, Great Sitkin, Spurr Daily Update

2025-08-05 20:03:09 UTC, Great Sitkin, Spurr Daily Update

2025-08-04 19:47:00 UTC, Great Sitkin, Spurr Daily Update

2025-08-03 19:19:27 UTC, Great Sitkin, Spurr Daily Update

2025-08-02 19:23:24 UTC, Great Sitkin, Spurr Daily Update

2025-08-01 19:51:12 UTC, Great Sitkin, Spurr Weekly Update

2025-07-31 19:24:15 UTC, Great Sitkin, Spurr Daily Update

2025-07-30 19:10:23 UTC, Great Sitkin, Spurr Daily Update

2025-07-29 21:44:59 UTC, Spurr Information Statement YELLOW ADVISORY

2025-07-29 19:41:46 UTC, Great Sitkin, Spurr Daily Update

2025-07-28 20:05:38 UTC, Great Sitkin, Spurr Daily Update

2025-07-27 19:31:31 UTC, Great Sitkin, Spurr Daily Update

2025-07-26 19:39:50 UTC, Great Sitkin, Spurr Daily Update

2025-07-25 20:19:02 UTC, Great Sitkin, Spurr Weekly Update

2025-07-24 20:31:50 UTC, Great Sitkin, Spurr Daily Update

2025-07-23 20:20:13 UTC, Great Sitkin, Spurr Daily Update

2025-07-22 20:05:33 UTC, Great Sitkin, Spurr Daily Update

2025-07-21 20:28:13 UTC, Great Sitkin, Spurr Daily Update

2025-07-20 19:07:12 UTC, Great Sitkin, Spurr Daily Update

California Volcano Observatory

2025-08-19 17:19:47 UTC, Weekly Update

2025-08-12 16:14:09 UTC, Weekly Update

2025-08-05 17:16:18 UTC, Weekly Update

2025-07-29 19:05:10 UTC, Weekly Update

2025-07-22 17:10:08 UTC, Weekly Update

Cascades Volcano Observatory

2025-08-15 19:17:41 UTC, Cascade Range Weekly Update

2025-08-08 18:20:27 UTC, Cascade Range Weekly Update

2025-08-01 19:47:27 UTC, Cascade Range Weekly Update

2025-07-25 18:48:57 UTC, Cascade Range Weekly Update

Hawaiian Volcano Observatory

2025-08-18 19:58:24 UTC, Kilauea Daily Update

2025-08-17 19:25:16 UTC, Kilauea Daily Update

2025-08-16 19:14:01 UTC, Kilauea Daily Update

2025-08-15 20:11:15 UTC, Kilauea Daily Update

2025-08-14 20:20:32 UTC, Kilauea Daily Update

2025-08-13 18:53:11 UTC, Kilauea Daily Update

2025-08-12 19:03:52 UTC, Kilauea Daily Update

2025-08-11 18:04:32 UTC, Kilauea Daily Update

2025-08-10 20:14:19 UTC, Kilauea Daily Update

2025-08-09 19:48:07 UTC, Kilauea Daily Update

2025-08-08 19:59:39 UTC, Kilauea Daily Update

2025-08-07 20:40:03 UTC, Ofu-Olosega, Ta'u Island, Tutuila Island Monthly Update

2025-08-07 19:16:38 UTC, Mauna Loa, Hualalai, Haleakala, Mauna Kea, Kama'ehuakanaloa Monthly Update

2025-08-07 19:01:27 UTC, Kilauea Daily Update

2025-08-06 23:23:45 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2025-08-06 23:23:45 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2025-08-06 20:03:46 UTC, Kilauea Daily Update

2025-08-06 12:06:00 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2025-08-06 12:06:00 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2025-08-06 11:24:18 UTC, Kilauea Status Report ORANGE WATCH

2025-08-05 19:43:01 UTC, Kilauea Daily Update

2025-08-04 19:56:47 UTC, Kilauea Daily Update

2025-08-04 17:33:41 UTC, Kilauea Status Report ORANGE WATCH

2025-08-03 19:12:26 UTC, Kilauea Daily Update

2025-08-02 19:11:26 UTC, Kilauea Daily Update

2025-08-01 18:56:09 UTC, Kilauea Daily Update

2025-07-31 18:54:34 UTC, Kilauea Daily Update

2025-07-30 19:16:03 UTC, Kilauea Daily Update

2025-07-29 19:26:11 UTC, Kilauea Daily Update

2025-07-28 18:49:18 UTC, Kilauea Daily Update

2025-07-27 18:55:12 UTC, Kilauea Daily Update

2025-07-26 18:59:44 UTC, Kilauea Daily Update

2025-07-25 18:46:22 UTC, Kilauea Daily Update

2025-07-24 19:06:50 UTC, Kilauea Daily Update

2025-07-23 18:58:03 UTC, Kilauea Daily Update

2025-07-22 19:00:09 UTC, Kilauea Daily Update

2025-07-21 19:44:10 UTC, Kilauea Daily Update

2025-07-21 04:59:17 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2025-07-21 04:59:17 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2025-07-20 15:29:49 UTC, Kilauea Volcano Activity Notification ORANGE WATCH

2025-07-20 15:29:49 UTC, Kilauea Volcano Observatory Notice for Aviation ORANGE WATCH

2025-07-20 14:56:22 UTC, Kilauea Status Report ORANGE WATCH

Northern Mariana Islands

2025-08-14 18:57:56 UTC, Weekly Update

2025-08-08 00:44:45 UTC, Weekly Update

2025-07-31 23:46:37 UTC, Weekly Update

2025-07-24 23:21:54 UTC, Ahyi Seamount Weekly Update

2025-07-24 01:18:13 UTC, Ahyi Seamount Information Statement UNASSIGNED UNASSIGNED

2025-07-24 00:47:31 UTC, Ahyi Seamount Volcano Observatory Notice for Aviation UNASSIGNED UNASSIGNED

2025-07-24 00:47:31 UTC, Ahyi Seamount Volcano Activity Notification UNASSIGNED UNASSIGNED

Yellowstone Volcano Observatory

2025-08-01 17:37:13 UTC, Yellowstone Monthly Update

Elevated Volcanoes

Alaska Volcano Observatory

Great Sitkin 2025-08-19 18:46:21 UTC ORANGE WATCH
Spurr 2025-08-19 18:46:21 UTC YELLOW ADVISORY

Hawaiian Volcano Observatory

Kilauea 2025-08-18 19:58:24 UTC ORANGE WATCH


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 2024-07-08 20:52:29 UTC GREEN NORMAL
Atka volcanic complex 2025-05-05 20:00:48 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 2024-05-13 23:43:30 UTC GREEN NORMAL
Gareloi 2024-03-05 20:50:34 UTC GREEN NORMAL
Great Sitkin 2025-08-19 18:46:21 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 2025-08-15 21:32:49 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 2020-09-08 21:52:54 UTC GREEN NORMAL
Martin 2023-01-11 23:08:56 UTC GREEN NORMAL
Novarupta 2022-03-18 23:33:23 UTC GREEN NORMAL
Pavlof 2023-01-20 20:29:55 UTC GREEN NORMAL
Redoubt 2010-04-23 20:27:31 UTC GREEN NORMAL
Semisopochnoi 2023-08-04 22:57:33 UTC GREEN NORMAL
Shishaldin 2024-08-30 19:02:18 UTC GREEN NORMAL
Snowy Mountain 2022-03-18 23:33:23 UTC GREEN NORMAL
Spurr 2025-08-19 18:46:21 UTC YELLOW ADVISORY
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 2024-05-13 23:43:30 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 2025-08-15 19:17:41 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 2025-07-14 18:43:51 UTC GREEN NORMAL
Mount St. Helens 2023-10-30 22:53:25 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 2025-08-07 19:16:38 UTC GREEN NORMAL
Hualalai 2025-08-07 19:16:38 UTC GREEN NORMAL
Kilauea 2025-08-18 19:58:24 UTC ORANGE WATCH
Mauna Kea 2025-08-07 19:16:38 UTC GREEN NORMAL
Mauna Loa 2025-08-07 19:16:38 UTC GREEN NORMAL
Ofu-Olosega 2025-08-07 20:40:03 UTC GREEN NORMAL
Ta'u Island 2025-08-07 20:40:03 UTC GREEN NORMAL
Tutuila Island 2025-08-07 20:40:03 UTC GREEN NORMAL

Yellowstone Volcano Observatory

Yellowstone 2025-08-01 17:37:13 UTC GREEN NORMAL