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Where the Andes don’t have volcanoes

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There are any between Southern Ecuador and Central Peru – this is the most plausible explanation.     The usual condition for what a volcano breaks out or erupts is under the Earth crus t – the mantle (the second layer going to the core), that is basically melted rock or magma , find weak zones at the crust where it can emerge due to the high pressure expanding the liquid and gas fluids as well.   This can happen in places where the crust is literally cracked because of subduction or embedding of a tectonic plate beneath another. The phenomenon causes so much friction that melts all the matter, so this tends to seek where to emerge by. If it gets, it goes up until reaching the surface taking out through a new way or a previously open one. A volcanic eruption happens so.   In case of the Andes, although Nazca Plate subducts under the South American Plate, it doesn’t do like an only lineal block but at two contact points: The first, according to ...

Resistant walls

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Piura is actually a seismic zone – we just must make safe buildings.   SULLANA, Peru – The land shook on Monday, April 2 nd , 2012. The first record of Peru’s Geophysical Institute (IGP, as its initials in Spanish) marked 6.2 magnitude in Richter Scale and VI intensity in Mercalli Scale . Later, it was modified to 5.0 magnitude in Richter’s and III intensity in Mercalli’s, taking Piura City as a reference.   The epicenter , that originally was located 25 miles to the west of Sullana City , ended to correct to 12 miles to the southeast of that spot, 57 miles depth. At least, the department’s coast felt it strong causing the people to overreact – the most were resting at home. It was eigt past ten at night, local time (0308 GMT, April 3 rd , 2012).   The mechanism of quakes in Piura is not different from the western coast of South America. The phenomenon is caused by the subduction of Nazca Plate against the South American Plate . Said simple, the subductio...

Don’t look at the sea?

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A tsunami that put in alert the whole Pacific was not officially warned in Peru – it caused a chain of disasters.   By Nelson Peñaherrera Castillo     FONOAFO’OU, Tonga – On Saturday, January 15 th , 2020, 17:27 Tonga Kingdom Time (0527 GMT), the Hunga Tonga -Hunga Ha’apai Volcano erupted twice in the 1-day lapse causing its structure to collapse into the sea, affecting immediately that South Pacific islander nation.   The column of wáter steam, ashes, and gases got to rise up to 15 miles toward the atmosphere. It was so massive that the Japanese satellite Himawari-8 could capture the cloud caused by the blast as well as the shock waves it generated, even.   According to KNTV station, operating in san Francisco Bay Area, California, the blast power was such as it altered the atmospheric pressure values across the Pacific Ocean – wee are talking about 5318 miles length between that Polinesia sector and that U.S. West Coast portion. ...

The Chira Quake of 2021

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A 6.1 magnitude event shook the whole Piura Department, and this is what the science knows up to now.   By Nelson Peñaherrera Castillo   Peru is SHAKING! Magnitude 6.1 Earthquake in Sullana, Peru - YouTube   SOJO, Peru – On July 30 th , 2021, noon, it was goin to be another winter-else, sunshine. Some people were inside their homes watching the Peru’s Bicentennial military parade that, due to Covid-19 pandemic, might have in a closed military facility at Lima City. Just ten minutes after the zenith (1710 GMT), the land under the capital of Miguel Checa District , Sullana Province , shook without a sense and violently.   At a spot, 25 miles under the surface of rock, sand, and pulverized clay, two huge pressing landmasses, maybe 3300 feet thickness, shocked one each other and started a list of focused events in a portion running from  Marcavelica District , just the north of Miguel Checa, and going to the border of provinces Sullana and Piura, at ...