Magnitude 6.4 – OFFSHORE ARAGUA, VENEZUELA

Magnitude 6.4 – OFFSHORE ARAGUA, VENEZUELA

Since the start of class we have been focusing on plate tectonics and earthquake so this article would apply pretty significantly. Off the coast of Venezuela there was an earthquake at a 6.4 on the Richter scale. We talked about in class how the scale ranged from 1 to 10; 10 being the worst.  Also the depth of the earthquake will affect the significance of the earthquake. They went on in this article to describe the earthquake as a swallow one due to the  “right-lateral strike-slip faulting.” The reason this tectonic earthquake occurred was due to the fact that the plates in the Caribbean head in an eastward direction with the push of South American plate.

Another issue we have discussed in class was the movement of plates per year; the plate involved in this earthquake has a movement of 20 mm a year. Along with this plate there are collections of plates in the area, which include bocono, which is located in the southwest. Then located around the epicenter are the San Sebastian and El Pilar, which are heading from west to east towards the Epicenter. These few faults consist of the majority of the motion in the two plates. There is some speculation that this earthquake occurred due to movement in the San Sebastian and El Pilar plates but it cannot be pin pointed until further analysis has been done.

The area where this quake has occurred is known for earthquakes it’s been called “ seismically active” it has had strong rated earthquakes occur there previously. The two specific quakes they are talking about that have occurred in this location are “including an M6.5 quake in July 1967 that caused approximately 240 fatalities, and an M5.4 quake in May 1989 which made more than 2000 people homeless in the Tucacas area.” Obliviously this location is used to having tectonic earthquakes due to the plates location and movement from the Caribbean’s towards South America.

This article is a good example of what we have learned so far in class about plate tectonics it talks about the movement of plates and how it affects the earthquakes. This is also a hot spot for earthquakes to, it’s also a hot spot for tsunamis to occur to because of the climate changes and water temperatures that causes a tsunami to occur.

Earthquake Details

Magnitude

6.4

Date-Time

  • Saturday, September 12, 2009 at 20:06:25 UTC
  • Saturday, September 12, 2009 at 08:06:25 PM at epicenter
  • Time of Earthquake in other Time Zones

Location

10.757°N, 67.847°W

Depth

10 km (6.2 miles) set by location program

Region

OFFSHORE ARAGUA, VENEZUELA

Distances

35 km (25 miles) NNE of Puerto Cabello, Venezuela
60 km (35 miles) NNE of Valencia, Venezuela
100 km (65 miles) W of CARACAS, Venezuela
2115 km (1310 miles) SE of Miami, Florida

Location Uncertainty

horizontal +/- 5.4 km (3.4 miles); depth fixed by location program

Parameters

NST=197, Nph=197, Dmin=806.2 km, Rmss=1.12 sec, Gp= 36°,
M-type=teleseismic moment magnitude (Mw), Version=7

Source

  • USGS NEIC (WDCS-D)

Event ID

us2009llbc
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One Response to Magnitude 6.4 – OFFSHORE ARAGUA, VENEZUELA

  1. fieldsfilm says:

    I actually saw this on the Google Earth real-time earthquake data. Thanks for acquiring more information about it. It was very detailed and interesting.

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