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Emphasizing cond. a reference  to activation stru. continued  for Popocatepetl of explosion expressed as Jan 9,2005 of Popocatepetl!!!!In this base,I share to needs of some geoenvironments a interesting table; Stru. summaried as 'continuing' with same date of Popocatepetl on Table signed for volcanoes  included similar cond.(11 as total) I realised a analysis based on these dates  expressed.Thus, I observe to big correlation cond. to catastrophic earthquake events with starting timeframes of volcanic region activations included long period Some volcanism events finish activation after some activations on year scale.(For example,Fagradalsfjall,LaPalma).At this point,I sign to selective stru. on a reference of development progress of volcanoes expressed!!!In this mean,we can evaluate expressed "great solutions" to needs of some geoenvironments of analysis handled near starting time ranges of these volcanisms based on statistical 👍 I will wait to precious replies on th...

  Strombolian activity has been picking up at the summit vent over the past two days. The INSIVUMEH volcano observatory recorded a typical steep rise of volcanic tremor, indicated magma moving upwards through the volcanic conduits. Strong explosions took place from the volcano, sending incandescent material to an approximate height of 200 to 300 meters above the crater. Ash plumes reached approx. 15,400 ft (4,700 m) altitude and extended to the south and west of the volcano. A new lava flow  started to emerge from a vent in direction of Ceniza Canyon, currently about 500 m long. Collapsing parts of the flow generated moderate avalanches towards Seca, Trinidad, Taniluyá and Las Lajas ravines as it descended the slope. Source: Instituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología volcano activity update 7 December 2021