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Popocatépetl Vulkan: sporadische Ausstöße von Vulkanasche

Di, 17. Aug 2021, 14:45
14:45 PM | VON: VN
Schwache bis mittlere explosive Tätigeit des Vulkans hält mit Unterbrechnungen an. Das Zentrum für Vulkanaschewarnungen (Volcanic Ash Advisory Center, VAAC) in Washington meldet sporadische Auswürfe von Vulkanasche.
Hier der originale Bericht: INTMT VA EMS..

FVXX22 at 14:44 UTC, 17/08/21 from KNES
VA ADVISORY
DTG: 20210817/1442Z

VAAC: WASHINGTON

VOLCANO: POPOCATEPETL 341090
PSN: N1901 W09837

AREA: MEXICO

SUMMIT ELEV: 17802 FT [5426 M]

ADVISORY NR: 2021/518

INFO SOURCE: GOES-16. WEBCAM. NWP MODELS.
RADIOSONDE.

ERUPTION DETAILS: INTMT VA EMS.

OBS VA DTG: 17/1431Z

OBS VA CLD: SFC/FL190 N1903 W09850 - N1902 W09837
- N1901 W09837 - N1856 W09849 - N1903 W09850 MOV
W 10KT SFC/FL210 N1905 W09844 - N1902 W09837 -
N1901 W09837 - N1902 W09844 - N1905 W09844 MOV W
15KT

FCST VA CLD +6HR: 17/2030Z SFC/FL190 N1902 W09837
- N1901 W09837 - N1846 W09913 - N1901 W09915 -
N1902 W09837 SFC/FL210 NO VA EXP

FCST VA CLD +12HR: 18/0230Z SFC/FL190 N1909
W09914 - N1902 W09837 - N1901 W09837 - N1852
W09914 - N1909 W09914

FCST VA CLD +18HR: 18/0830Z NO VA EXP

RMK: VA EMS OBSD AT 1259Z AND 1404Z ON WEBCAM.
FLS ESTD FM WEBCAM AND 12Z MMMX RADIOSONDE. VA
OBSD TO 12NM W OF SUMMIT AND 6 NM WNW OF SUMMIT.
NWP MDLS FCST FURTHER VA EMS TO MOV WSW-W THRU
T+12HR. ...HOSLEY

NXT ADVISORY: WILL BE ISSUED BY 20210817/2045Z

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Background:

Volcán Popocatépetl, whose name is the Aztec word for smoking mountain, towers to 5426 m 70 km SE of Mexico City to form North America's 2nd-highest volcano.  The glacier-clad stratovolcano contains a steep-walled, 250-450 m deep crater.  The generally symmetrical volcano is modified by the sharp-peaked Ventorrillo on the NW, a remnant of an earlier volcano. 
At least three previous major cones were destroyed by gravitational failure during the Pleistocene, producing massive debris-avalanche deposits covering broad areas south of the volcano.  The modern volcano was constructed to the south of the late-Pleistocene to Holocene El Fraile cone.  Three major plinian eruptions, the most recent of which took place about 800 AD, have occurred from Popocatépetl since the mid Holocene, accompanied by pyroclastic flows and voluminous lahars that swept basins below the volcano.  Frequent historical eruptions, first recorded in Aztec codices, have occurred since precolumbian time.


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Source: GVP, Smithsonian Institution - Popocatepetl information


Satellite images of Popocatepetl volcano (c)Google Earth View
Satellite images of Popocatepetl volcano (c)Google Earth View
Stratovolcano 5426 m / 17,802 ft
Central Mexico, 19.02°N / -98.62°W
Aktueller Status: Ausbruch (4 von 5) Ausbrüche des Popocatépetl:
1345-47, 1354, 1363(?), 1488, 1504, 1509(?), 1512, 1518, 1519-23(?), 1528, 1530, 1539-40, 1542, 1548, 1571, 1580, 1590, 1592-94, 1642, 1663-65, 1666-67, 1697, 1720, 1802-04, 1827(?), 1834(?), 1852(?), 1919-22, 1923-24, 1925-27(?), 1933, 1942-43, 1947, 1994-95, 1996-2003, 2004-ongoing
Typische Aktivität
Dominantly explosive, construction of lava domes. Plinian eruptions at intervals of several centuries or few thousands of years, vulcanian and strombolian activity in intermittent phases.

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