Search results
Results From The WOW.Com Content Network
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.
The New Madrid Seismic Zone (NMSZ), sometimes called the New Madrid Fault Line, is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri. The New Madrid fault system was responsible for the ...
The Gonâve Microplate, showing location of the main fault zones. The Septentrional-Orient fault zone (SOFZ) is a system of active coaxial left lateral-moving strike slip faults that runs along the northern side of the island of Hispaniola where Haiti and the Dominican Republic are located and continues along the south of Cuba along the northern margin of the Cayman Trough.
In Michigan, most fault lines that were potentially visible long ago are now buried deep under sedimentary deposits, so we often don't know they exist until an earthquake happens along them.For ...
2019–20 Puerto Rico earthquakes. Starting on December 28, 2019, [7] and progressing into 2020, the southwestern part of the island of Puerto Rico was struck by an earthquake swarm, [8] including 11 that were of magnitude 5 or greater. [9] The largest and most damaging of this sequence was a magnitude 6.4 Mw, which occurred on January 7 at 04: ...
San Andreas Fault System (Banning fault, Mission Creek fault, South Pass fault, San Jacinto fault, Elsinore fault) 1300: California, United States: Dextral strike-slip: Active: 1906 San Francisco (M7.7 to 8.25), 1989 Loma Prieta (M6.9) San Ramón Fault: Chile: Thrust fault: Sawtooth Fault: Idaho, United States: Normal fault: Seattle Fault ...
The Keweenaw Fault is a reverse fault that bisects the Keweenaw Peninsula of the Upper Peninsula of Michigan. [1] The fault thrusts lava flows of the Midcontinent Rift System onto sedimentary rocks of the Jacobsville Sandstone. The fault is part of the inversion of the Midcontinent Rift where a region that had previously undergone extension ...
Even as equipment/techniques improved, the initial surveyed line still remains the official border, [2] which is why the extreme points may be either side of the agreed-upon line. The 49th parallel was agreed to be the border between the United States and British North America (later Canada) from Lake of the Woods to the Strait of Juan de Fuca ...