Very powerful earthquake in the Mexican coastal waters

Puerto Vallarta at night

Puerto Vallarta at night - Image via Wikipedia

Earthquake Report comment :
The earthquake epicenter (preliminary) is located at a distance of around 113 km from Puerto Vallarta.
GDACS has just issued a GREEN earthquake report = very limited chance on damage and injuries.
The epicenter of the earthquake is just on top of a subduction zone.
The locations most at risk are the Islas Marias (Mexico).
Isla María Cleofas is located only 10 km from the epicenter.
USGS expects a Mercalli V to VI on the islands.
Based on the satellite pictures we can conclude that Isla María Cleofas is unpopulated.
The islands are inhabited by 1,116 people (latest census).
The coastal towns like Puerto Vallarta will experience a weak to light shaking.
Earthquake Report calls this earthquake potentially dangerous for the neighboring islands only (Islas Marias).

Islas Marias (wikipedia information)

The Islas Marías (“Mary Islands”) are an archipelago of four islands that belong to Mexico. They are located in the Pacific Ocean, some 100 km (60 miles) off the coast of the state of Nayarit. They are part of the municipality (municipio) of San Blas, Nayarit. As of 2006, the islands are still being used as a penal colony, containing the Islas Marias Federal Prison. The islands have an aggregate area of 244.970 km². 1116 people lived on Isla María Madre as of the census of 2005. The other islands are uninhabited. The main settlement is Puerto Balleto, with a population of 602.

Isla María Madre, the northernmost island, is the largest, with a surface area of 145.282 km². It houses the Islas Marías Federal Prison which was established there in 1905. The other two islands are Isla María Magdalena (70.440 km²) and, further south, Isla María Cleofas (19.818 km²). They were named after three women called Mary in the Biblical New Testament: respectively, Mary, the mother of Jesus, Mary Magdalene, and Mary, the wife of Cleopas.

The smaller island, Isla San Juanito, with an area of 9.105 km² lies off the north coast of Isla María Madre.

Most important Earthquake Data:
Magnitude : Mi 5.9
Tuesday, September 14, 2010 at 05:32:02 PM at epicenter
Depth (Hypocenter) : 36 km
Geo-location(s) :
10 km from Isla María Cleofas
103 km (64 miles) W (271°) from Las Varas, Nayarit, Mexico
113 km (70 miles) WNW (303°) from Puerto Vallarta, Jalisco, Mexico

Links to important maps
USGS Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
USGS Shaking map
USGS historic earthquakes map
USGS Pager map
GDACS Green Earthquake Alert (Global Disaster Alert and Coordination System)

* GDACS (Global Disaster Alert and Coordination System) provides near real-time alerts about natural disasters around the world. GDACS is a Joint Initiative of the United Nations and the European Commission

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with “Earthquake Report” news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.

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