Live Seismograph in Otavalo, Ecuador

Seismograph Otavalo, Ecuador

Seismograph or Seismogram at Otavalo, Ecuador

Below a nearly ‘live’ picture of the earthquake registering station “Otavalo” in Ecuador.
The seismographs are renewed approx. every 30 minutes. You will have to refresh
The seismograms are courtesy of USGS. We bring them to our readers to enable them to see the registered
We have used the names of Seismograph and Seismogram, because both names are used in different parts of the world. They mean the same.
Please use the seismographs in conjunction with our earthquake list and reporting. Often the seismograph indicates local events which have nothing to do with earthquakes, are being maintained or do not work. All this happens beyond our knowledge. We bring the seismograph ‘as it is’. Time is UTC time (Universal Time). Clicking on the picture will bring you to the corresponding USGS page.

Advertisements

Earthquakes list September 9, 2010

M 4.3      2010/09/09 21:26   Depth 105.4 km     PERU-ECUADOR BORDER REGION
Light earthquake on a safe depth

M 4.0      2010/09/09 21:22   Depth 33.1 km     CRETE, GREECE

Epicenter in the trench on a safe distance of Crete.

M 4.7      2010/09/09 17:15   Depth 33.5 km     BALLENY ISLANDS REGION
On a stress line in the Ocean between Antarctica and New Zealand. The Australian plate is pulling away from the Antarctic plate/

M 5.2      2010/09/09 10:31   Depth 10 km     REYKJANES RIDGE
In the middle of the North Atlantic Ocean

M 5.4      2010/09/09 07:42    Depth 517.4  km    BANDA SEA
Too deep to create damage or injuries

M 6.1      2010/09/09 07:28    Depth 17.6 km      OFFSHORE BIO-BIO, CHILE
Read our extensive report (Click on this paragraph)

M 4.5      2010/09/09 05:49   Depth 506.2 km     FIJI REGION
Very deep in the mantle of the earth. Epicenter amids a number of small islands.

M 4.9      2010/09/09 04:18   Depth 22.4 km      NORTH ISLAND OF NEW ZEALAND
Epicenter in the same area as yesterday. Serious shock, but people in this area are used to this kind of quakes.

M 5.3      2010/09/09 03:41   Depth 28.6 km      STATE OF YAP, FED. STATES OF MICRONESIA
Big distance from the nearest atolls.

M 4.3      2010/09/09 01:12   Depth 577.9 km      CHINA-RUSSIA-NORTH KOREA BORDER REGION
Moderate deep earthquake

M 4.6      2010/09/09 01:03   Depth 14.9 km      IZU ISLANDS, JAPAN REGION

Except some underwater volcanoes (see link), nobody in the area

seismograph - recordingUseful information to read this daily earthquake list
This earthquake list covers minor and major earthquakes in the world.
If a more detailed page is present, the earthquake line will be linked to the detailed page.
For your comfort, we will provide in most cases Google Satellite Map links to give you an idea where the earthquake struck, which terrain it happened and if villages or cities are located in the immediate vicinity. The reference for the time zone is UTC (Coordinated Universal Time, also called GMT)
The page is regularly updated to add new earthquakes.
green color = NOT dangerous for damage or injuries
orange color = MODERATE risk for damage or injuries
red color = CONSIDERABLE risk for damage or injuries

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.

New : Earthquake-report.com will follow-up volcano activity around the world

A statue of Jesus Christ on the cemetary of Ambato with ash spewing Tungurahua volcano in the background

A statue of Jesus Christ on the cemetary of Ambato with ash spewing Tungurahua volcano in the background - Picture : earthquake-report.com

Last week earthquake-report.com reported about just happened eruptions of Galeras Volcano in Colombia and Sinabung in Sumatra, Indonesia.
After positive feedback of our users, we have decided to follow also volcanoes from now on as a standard subject.

A second reason for covering and scanning volcano activity is the fact that volcanoes are the result of the motion of tectonic plates.

Our reporting will not only cover spectacular news,  but also in-depth files on volcano linked subjects.

On a regular basis we will publish lists of all active or near-active volcanoes in the world.

The main contributor of this website has a past of multiple visits and climbs of volcanoes worldwide.  He walked, climbed and visited the following active volcanoes : Sangay (Ecuador), Merapi (Indonesia), Etna (Sicily), Stromboli (Eolian islands-Sicily), Kilauea (Hawaii), Mount St Helens (Washington), Mt Hood (Oregon), Tungurahua (Ecuador),  Osorno (Chile) and Puyehue (Chile).t St Helens (Washington), Mt Hood (Oregon), Tungurahua (Ecuador),  Osorno (Chile

Understanding the creation and the earthquakes of the Galapagos Islands

Galapagos tectonics
Darwin had part of the answer on the Galapagos islands.
The answer to the origin of the Galápagos  was only available after 1958, when continental drift, or plate tectonics, was discovered.  We now understand that the surface of the earth is divided into massive tectonic plates which slowly drift across the globe.  The formation of the Galápagos is intimately tied to the history of the Nazca plate, on which they lie.

The Galápagos are located on the very northern edge of the Nazca plate, which is bounded by the Cocos (north) and the Pacific (west) plates (see map). The Nazca plate itself is currently drifting southeast, away from the Cocos plate and from the Pacific plate.  This movement of the Nazca plate relative to the Cocos plate is responsible for producing the cluster of volcanic islands we call Galápagos.

Divergent and transform boundaries in between the Cocos and Nazca plates - Graphic ; courtesy NOAA OceanExplorer

There is a large body of geophysical evidence for the existence of enormous plumes of hot mantle material that originate near the earth’s core and rise all the way to the crust. These plumes seem to be stable over many millions of years. and with time, they burn through the crust to form an underwater volcano which may eventually grow big enough to become an island.
But, because the crustal plate is in constant motion, the island will eventually move off of the hot spot. thereby making room for a second volcanic island. And a third, and a fourth…. Thus are archipelagos like the Galápagos formed.

Picture : Armand Vervaeck

In regions of extensive and repeated fissure eruptions, ridges are formed. Often these underwater ridges have substantial height (as much as 2,000 to 3,000 meters) and are considered to include the longest mountain chains in the world. As new oceanic crust forms at the ridges, older crust is progressively moved farther and farther from the ridge, creeping along at a rate of a few centimeters per year. This process is referred to as seafloor spreading. For this reason, we often refer to divergent boundaries as spreading boundaries. As the new oceanic crustal rock moves away from the heated ridge, it cools and contracts, decreasing the ridge height (i.e., increasing the water depth) of the ridge flanks.
Recently, the use of undersea submersibles has provided a window to view the mid-ocean ridges. Scientists have actually observed new ocean floor being produced as red-hot lava extrudes from active fissures, instantly “freezing,” or cooling, in the 2°C bottom water. Associated with the ridges are hydrothermal vents, where super-heated water, gases, and minerals escape from deep within the Earth.

Picture : Armand Vervaeck

Islands farthest from the hot spot are older and more eroded while islands near or on the hot spot are younger and steeper. Thus Isla San Cristóbal, the nearest to the mainland, is approximately four million years old and composed of eroded, rounded cones, while Isla Fernandina dates at less than 7000 years and is considered to be one of the most active volcanoes in the world. Recently former Galápagos islands, now submerged, have been discovered between Isla San Cristóbal and the mainland. This discovery may double the age of the islands. Indeed, several million years from now the present islands may likewise sink beneath the waves only to be replaced by a new set of Galápagos Islands. Who can imagine what course further evolution will take!?

Galapagos Earthquakes.
Although the Galapagos area is mainly a Hot Spot where the Nazca plate and the Cocos plate are pushed away from each other (divergent boundaries) , which allows molten lava to reach the earth’s surface, a small portion of the fault line is a transform fault where the 2 plates are striking along each other with regular earthquakes as a result (see graphic)

Galapagos volcanoes
Mid-ocean islands like the Galapagos are formed from basalt, the most basic of all types of lava.
Basalt has a very different chemical composition from the lavas that erupt from continental volcanoes, and is much more fluid. Consequently, as the lava flows build up to produce a volcanic cone, the island cones have a much shallower slope than those on the mainland.
These shallow-sloped volcanoes are called shield volcanoes and in the Galapagos, they are often compared to over-turned soup bowls.
Such shield volcanoes can clearly be seen in the younger western islands of Isabela and Fernandina. To the east, the volcanoes are lower and more eroded.

Galapagos volcanoes creation, erosion and constant movement - Graphic : courtesy Dr. Robert Rothman

(some text Courtesy – Dr. Robert Rothman, Professor Biological Sciences)
(Pictures and graphics : Dr. Robert Rothman, Armand Vervaeck and NOAA oceanexplorer)

%d bloggers like this: