{
    "vona_html": "\u003Cstyle\u003E.hans-td { padding: .25em; } .hans-paragraph { margin-top: 0; margin-bottom: 1em; }\u003C\/style\u003E\n            \u003Ctable\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 colspan=\u00222\u0022\u003E(1) \u003Cb\u003EVOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)\u003C\/b\u003E\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 width=\u0022250\u0022\u003E(2) Issued:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(20230310\/0222Z)\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(3) Volcano:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003ETakawangha (VNUM #311090)\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(4) Current Color Code:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E\u003Cb\u003EORANGE\u003C\/b\u003E\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(5) Previous Color Code:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003EYELLOW\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(6) Source:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003EAlaska Volcano Observatory\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(7) Notice Number:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E2023\/A225\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(8) Volcano Location:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003EN 51 deg 52 min W 178 deg 1 min\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(9) Area:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003EAleutians\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(10) Summit Elevation:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E4754 ft (1449 m)\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(11) Volcanic Activity Summary:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E\n                        \u003Cspan name=\u0022summary\u0022\u003E\n                            \u003Cp class=\u0022hans-paragraph\u0022\u003EOver the past 48 hours, earthquake activity near Takawangha volcano has been elevated and continues. This sustained activity indicates an increased potential for eruption at the volcano. Therefore AVO is raising the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH.\u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003ESeismic activity is also elevated at Tanaga Volcano, which is about 8 km (5 miles) west of Takawangha on Tanaga Island. If an eruption were to occur, it is uncertain at this stage if it would come from Takawangha or Tanaga. \u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003EAVO analysts continue to monitor the situation closely, and locate events as time permits. Earthquakes are occurring under Tanaga Island at a rate of up to several per minute. The largest event over the past 24 hours was a M3.9 located under Tanaga Volcano. \u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003ENo eruptive activity or signs of unrest have been detected in satellite or other monitoring data.\u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003ETakawangha is monitored with a local seismic network, a single local infrasound sensor, regional infrasound and lightning sensors, and satellite imagery.  \u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003EFor current monitoring data: \u003Ca href=\u0022https:\/\/avo.alaska.edu\/activity\/Takawangha.php\u0022\u003Ehttps:\/\/avo.alaska.edu\/activity\/Takawangha.php\u003C\/a\u003E\u003C\/p\u003E\n                        \u003C\/span\u003E\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(12) Volcanic cloud height:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003ENone observed\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(13) Other volcanic cloud information:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003ENone observed\u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(14) Remarks:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003ETakawangha is a remote, 1,449 m (4,754 ft)-high stratovolcano located on the northeast portion of Tanaga Island, roughly 95 km (59 miles) west of Adak in the Andreanof Islands. Takawangha's summit is mostly ice-covered, except for four young craters that have erupted ash and lava flows in the last few thousand years. Parts of Takawangha's edifice are hydrothermally altered and may be unstable, possibly leading to localized debris avalanches from its flanks. Takawangha lies across a saddle from historically active Tanaga volcano to the west. No historical eruptions are known from Takawangha; however, field work shows that recent eruptions have occurred, and it is possible that historic eruptions attributed to Tanaga may instead have come from Takawangha.\u003C\/p\u003E\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(15) Contacts:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003EMichelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497\u003C\/p\u003E\u003Cp class=\u0022hans-paragraph\u0022\u003EDavid Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 322-4085\u003C\/p\u003E\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n                \u003Ctr\u003E\n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E(16) Next Notice:\u003C\/td\u003E \n                    \u003Ctd class=\u0022hans-td\u0022 valign=\u0022top\u0022\u003E\n                    \u003C\/td\u003E\n                \u003C\/tr\u003E\n            \u003C\/table\u003E",
    "vona_title": "ALASKA VOLCANO OBSERVATORY VOLCANO OBSERVATORY NOTICE FOR AVIATION",
    "sent_utc": "2023-03-10",
    "obs_abbr": "avo",
    "notice_identifier": "DOI-USGS-AVO-2023-02-28T20:20:13-09:00",
    "vona_url": "https:\/\/volcanoes.usgs.gov\/hans-public\/vona\/DOI-USGS-AVO-2023-02-28T20:20:13-09:00",
    "vona_data": "https:\/\/volcanoes.usgs.gov\/hans-public\/api\/notice\/getVona\/DOI-USGS-AVO-2023-02-28T20:20:13-09:00",
    "alert_level": "WATCH",
    "color_code": "ORANGE"
}