Wed, 29 Aug 2012, 06:00
CENAPRED reported that during 29 August-4 September seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash; cloud cover often prevented visual observations of the volcano. Incandescence from the crater was observed at night. Gas plumes, that were sometimes bluish, rose up to 1 km above the crater and drifted NE, W, SW, and WSW.
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SO2 plume from Popocatépetl on 27 Aug 2012 (NOAA)
Not much has changed at the volcano. A slight increase in the frequency of small explosions to about 1 or 2 per hour can be noted. Some of the explosions produce not only steam, but some ash, and the more powerful ones eject glowing material falling back into the crater.
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SO2 plume from Popocatépetl on 25 Aug 2012 (NOAA)
Activity remains relatively low. About 1 weak steam explosion has been occurring per hour over the past day. Still, the volcano produces a large SO2 plume visible on yesterday's satellite image.
Sat, 25 Aug 2012, 10:05Activity has been low. Only one weak explosion per 2 hours on average were observed and there are no reports of ash emissions.
Fri, 24 Aug 2012, 10:05
The volcano remains at relatively low levels of activity. During 9 hours, only 7 weak explosions of mostly steam and gas were observed. A steam plume rises about 700 meters above the crater.
Wed, 22 Aug 2012, 10:05
Small explosions occurred at an average rate of 2 per hour yesterday. CENAPRED recorded short pulses of weak volcanic tremor.
Wed, 22 Aug 2012, 06:00CENAPRED reported that during 22-28 August seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash; cloud cover often prevented visual observations of the volcano. During 22-28 August gas-and-steam plumes rose from the crater, and drifted WSW, W, and WNW during 22-24 August. Incandescence from the crater was observed at night during 23-26 August.
Tue, 21 Aug 2012, 10:05
The level of activity is fluctuating. Between 19-20 Aug, the number of weak explosions has further decreased to only one every 3 hours on average, and increased again to about 1 every hour during 20 Aug. The largest occurred at 07:40 and 19:18 local time and probably produced small ash plumes. No ash fall has been reported.
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Mon, 20 Aug 2012, 10:05
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SO2 plume from Popocatépetl on 19 Aug 2012 (NOAA)
Activity of the volcano has decreased again after a strong peak of frequent although small explosions on 18 Aug. During the 24 hours of observation between 11 am on 18 Aug and 11 am on 19 Aug, CENAPRED counted 89 small explosions, but only 5 during the 9 hours between 11:00 and 20:00 yesterday.
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Sun, 19 Aug 2012, 09:35
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Webcam image of Popocatépetl on the morning of 19 Aug (CENAPRED)
A sharp increase in activity has been observed at Popocatépetl since yesterday. During 17-18 August, 176 mostly small explosions were observed (compared to values of 10-20 for the previous week), and 74 alone during the following 9 hours, i.e. about 1 every 8 minutes.
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Fri, 17 Aug 2012, 12:0516 weak explosions have occurred during 24 hours between 16-17 Aug, and a 1 km high steam plume rises above the crater.
Thu, 16 Aug 2012, 10:05
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Popo with glow from the summit seen early on 16 Aug (CENAPRED)
Visible activity at Popo has decreased, with only 1 week explosion (less than 500 m height of steam and ash plume) every 2-3 hours recently. The summit lava dome is still glowing at night.
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Wed, 15 Aug 2012, 06:00CENAPRED reported that during 15-21 August seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash; cloud cover often prevented visual observations of the volcano. Incandescence from the crater was observed at night. A gas-and-ash plume rose from the crater on 15 August, and steam-and-gas plumes rose as high as 1 km and drifted NW the next day.
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Tue, 14 Aug 2012, 11:49
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Current seismogram from Popo
Activity has been increasing, with now 1-2 weak explosions per hour. The most significant one was at 15:47 local time yesterday, CENAPRED reports. Weak tremor and perhaps increased activity after 22:00 local time can be seen on the seismic plot.
Mon, 13 Aug 2012, 10:05Activity remains low. About 1 weak eruption per hour has been observed during the past day by CENAPRED. SO2 emissions remain high (which is typical for Popo during phases of activity).
Sun, 12 Aug 2012, 10:05
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SO2 plume from Popocatépetl on 12 Aug (NOAA)
Only 3 weak explosions were observed during 9 hours of recent observation. The volcano is emitting a significant steam and gas plume with lots of SO2.
Sat, 11 Aug 2012, 07:07
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SO2 plume from Popocatépetl on 10 Aug (NOAA)
During the past day, activity has remained low. Popo produced about 1 weak explosion per hour emitting mostly steam. A significant SO2 plume was visible on NOOA's satellite image of yesterday. Seismic recordings are currently suffering malfunctioning, but don't suggest much activity.
Fri, 10 Aug 2012, 08:06
During the past 24 hours, 17 weak explosions occurred, and a constant steam and gas plume is rising. Glow is visible at night.
Thu, 9 Aug 2012, 07:08CENAPRED reportss a total of 15 small-intensity "exhalations" of steam and gas, and sometimes with minor amounts of ash. Tremor at high frequency occasionally occurs in the seismic signal.
Wed, 8 Aug 2012, 10:05
During 1-7 August seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash during 4-6 August; cloud cover prevented observations during most of this period. Incandescence from the crater was periodically observed.
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Wed, 8 Aug 2012, 06:51A moderately strong explosion occurred yesterday 7 Aug at 17:58 local time and produced a steam and ash column rising 4 km, and drifting W-SW, CENAPRED reported.
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Wed, 8 Aug 2012, 06:00
CENAPRED reported that during 8-14 August seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash on 8 August; cloud cover prevented observations during most of this period. Incandescence from the crater was periodically observed. Gas-and-steam plumes were observed rising from the crater during 8-9 and 14 August.
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Tue, 7 Aug 2012, 07:48
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Glow from the growing lava dome of Popo early on 7 Aug (CENAPRED webcam)
CENAPRED reports 9 small to moderate explosions during 11-20:00 on 6 Aug.
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Sat, 4 Aug 2012, 09:13
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Webcam image of Popo early on 4 Aug (CENAPRED)
The activity at Popocatépetl remains at low to moderate levels compared to previous weeks.
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Wed, 1 Aug 2012, 07:25
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Seismic recording from Popo 31 July
Popocatépetl's activity is relatively low. Only 14 weak emissons of mostly steam were recorded on 31 July during 24 hours, and there appears to be no significant seismic activity. Glow is still visible from the summit, but less than before.
Wed, 1 Aug 2012, 06:00
CENAPRED reported that during 1-7 August seismicity at Popocatépetl indicated continuing gas-and-steam emissions that may have contained ash during 4-6 August; cloud cover prevented observations during most of this period. Incandescence from the crater was periodically observed. Gas-and-steam plumes were observed almost daily rising from the crater as high as 2.5 km above the rim.
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