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[76] [77] The central shield volcano is the oldest, built mostly from 22 to 18 Ma but with a later phase from 17.5 to 13 Ma. The southern shield volcano formed from 21 to 14 Ma. The northern shield volcano was built mainly from 17 to 12 Ma. [78] These shield volcanoes erupted mostly basaltic and trachybasaltic lava flows. [79]
It is one of the most active volcanoes in Mexico, having had more than 20 major eruptions since the arrival of the Spanish in 1519. The 1982 eruption of El Chichón, which killed about 2,000 people who lived near the volcano, created a 1-km-wide caldera that filled with an acidic crater lake. Before 1982, this relatively unknown volcano was ...
Bathymetry of the northeast corner of the Caribbean plate showing the major faults and plate boundaries; view looking south-west. The main bathymetric features of this area include: the Lesser Antilles Volcanic Arc; the old inactive volcanic arc of the Greater Antilles (Virgin Islands, Puerto Rico, and Hispaniola); the Muertos Trough; and the Puerto Rico Trench formed at the plate boundary ...
Note: The inclusion criteria for adding events are based on WikiProject Earthquakes' notability guideline that was developed for stand alone articles. The principles described also apply to lists. The principles described also apply to lists.
The earthquakes have struck just 10 miles south of Iceland’s main airport, Keflavík International Airport, but the UK foreign office have said travel can go ahead (Vafri.is)
The most recent one, a 2.3 magnitude temblor, happened just after midnight on Monday near the south end of Lake Lanier, according to the U.S. Geological Survey (USGS).
Map showing epicenters of M≥5 earthquakes up to February 4, 2020, in the 2019–2020 Puerto Rico swarm sequence of earthquakes. The region has been seismically active since ancient times. The Great Northern and Great Southern fault zones that cross the main island of Puerto Rico laterally have been active since the Eocene epoch.
Almost 100 earthquakes shook Iceland from midnight today, as the country remains apprehensive about an imminent eruption.. The strongest earthquake with a magnitude of 3.35 hit Vatnafjoll in South ...