Victor-Hugo Forjaz A
To: Victor-Hugo Forjaz
PARA NOTÍCIA OVGA SFF
From: USGS VNS <[email protected]>
Date: terça, 12/02/2019 à(s) 17:12
Subject: HVO Weekly Update 20190212_0808
To: Victor Hugo Forjaz <[email protected]>
HAWAIIAN VOLCANO OBSERVATORY WEEKLY UPDATE
U.S. Geological Survey
Tuesday, February 12, 2019, 8:08 AM HST (Tuesday, February 12, 2019, 18:08 UTC)
KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW
Activity Summary: Kīlauea Volcano is not erupting. Rates of seismicity, deformation, and gas emissions have not changed significantly over the past week.
Observations: Low rates of seismicity continue across the volcano, with earthquakes occurring primarily in the summit and south flank regions. GPS stations and tiltmeters continue to show motions consistent with refilling of the deep East Rift Zone. These rates have been steady over the past several weeks. This morning at Kīlauea’s summit, tiltmeters began showing inflationary tilt after three days of deflationary tilt. This behavior is consistent with past Deflation-Inflation (D-I) events, which have been observed at the summit for several years. Sulfur dioxide emission rates from the summit and from Puʻu ʻŌʻō remain low.
Hazards remain in the lower East Rift Zone eruption area and at the Kīlauea summit. Residents and visitors near recently active fissures and lava flows should heed Hawaii County Civil Defense and National Park warnings and be prepared, if necessary, to self-evacuate in the unlikely event of renewed activity. Please note that Hawaii County maintains a closure of the entire lava flow field and eruptive vents, prohibiting access unless authorized through Civil Defense.
The Hawaiian Volcano Observatory (HVO) continues to closely monitor Kīlauea’s seismicity, deformation, and gas emissions for any sign of increased activity. HVO maintains visual surveillance of the volcano with web cameras and occasional field visits. HVO will continue to issue a weekly update (every Tuesday) and additional messages as warranted by changing activity.
Activity summary also available by phone: (808) 967-8862
Subscribe to these messages: https://volcanoes.usgs.gov/vns2/
Definitions of terms used in update: https://volcanoes.usgs.gov/volcanoes/kilauea/extra/definitions.pdf
Overview of Kīlauea summit (Halemaʻumaʻu) and East Rift Zone (Puʻu ʻŌʻō) eruptions:
Summary of volcanic hazards from Kīlauea eruptions:
Recent earthquakes in Hawaiʻi (map and list):
Explanation of Volcano Alert Levels and Aviation Color Codes:
The Hawaiian Volcano Observatory is one of five volcano observatories within the U.S. Geological Survey and is responsible for monitoring volcanoes and earthquakes in Hawaiʻi.
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Com o Presidente Manuel de Arriaga no Farol da Ponta dos Capelinhos
Texto do Professor Galopim de Carvalho
Notícia OVGA 12-11-2018 Continuar a lerCom o Presidente Manuel de Arriaga no Farol da Ponta dos Capelinhos OVGA