दुनिया भर में EARTHQUAKE संबंधित समाचार - पुरालेख जुलाई - अगस्त 2012

यदि आप नवीनतम वास्तविक समय भूकंप की सूची के लिए खोज: यहाँ क्लिक करें
सबसे हाल ही में आए भूकंप से संबंधित खबर है: यहाँ क्लिक करें
हस्ताक्षर नीचे $ $ $ $ $ $ प्रेस में लेख के लिए लिंक कर रहे हैं.
: कम महत्व $ $ $ $ $: एक पढ़ा होगा!

अगस्त 28, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? मेक्सिको, 1973 - चुंबकत्व: 7.2
से अधिक 600 reported killed, thousands injured. Heavy damage in the states of Morelos, Puebla, and Veracruz where thousands were left homeless. Felt strongly at Mexico City. Rockfalls and landslides in unstable or steep slopes occurred in the Puebla-Veracruz State line area. (USGS)

अगस्त 27, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? इंडोनेशिया, 1984 - चुंबकत्व: 5.2
One hundred twenty-three people injured and 405 buildings damaged in the Tarutung area. Felt at Kuala Lumpur and Pinang, Malaysia.

Another hint to detect tsunami danger
A noticeable rise or fall in the normal depth of coastal waters is nature's tsunami warning. Move away from the shore immediately.

अगस्त 26, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? Sub-Antarctic South Sandwich Islands, 1977 - Magnitude : 7.1
The earthquake was centered about 2700 kilometers east of the southern tip of Argentina. Because this area is sparsely populated to unpopulated, no felt information was available.

What to do if you are at a shore location and an earthquake strikes ? Tsunami ?
अगर सूनामी आपके क्षेत्र को धमकाता है तो क्या करें: यदि आपको निकालने की सलाह दी जाती है, तो तुरंत ऐसा करें क्षेत्र से दूर रहें जब तक कि स्थानीय अधिकारियों का कहना है कि यह सुरक्षित है सोचने में बेवकूफ़ मत बनो कि जब एक लहर आती है और चला जाता है तो खतरे खत्म हो जाती हैं - सुनामी एक तरंग नहीं है, लेकिन लहरों की एक श्रृंखला है। सुनामी के लिए देखने के लिए शोरलाइन पर मत जाओ जब आप लहर देख सकते हैं, तब से बचने में बहुत देर हो चुकी है।

अगस्त 25, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? चीन, 1933 - परिमाण: 7.5
More than 9,300 dead, one of the world's deadliest earthquakes.
The city of Diexi and about 60 villages in the area were completely destroyed. Damage and casualties also occurred at Chengdu. Felt at Chongqing and Xi'an. Landslides created 4 lakes on the Min Jiang River. Over 2,500 of the casualties occurred 45 days after the earthquake, when the lakes broke through the slides and inundated the valley.

The Mariana Trench (Pacific Ocean)
The Mariana Trench, located in the Pacific Ocean just east of the Mariana Islands, is the deepest part of the Earth's oceans, with a maximum depth of about 11 km (6.8 miles). This is the deepest location on the surface of the Earth. The bottom of the trench is farther below sea level than Mount Everest is above it. (USGS)
... and if you find the Mariana Trench interesting, please read the following के बारे में seafloor spreading and trenches
Harry H. Hess, a Princeton University geologist and a Naval Reserve Rear Admiral, and Robert S. Dietz, a scientist with the U.S. Coast and Geodetic Survey first coined the term seafloor spreading (mid ocean). Dietz and Hess were among a small handful of scientists who really understood the broad implications of sea floor spreading. If the Earth's crust was expanding along the oceanic ridges, Hess reasoned, it must be shrinking elsewhere. He suggested that new oceanic crust continuously spread away from the ridges in a conveyor belt-like motion. Many millions of years later, the oceanic crust eventually descends into the oceanic trenches -- very deep, narrow canyons along the rim of the Pacific Ocean basin. According to Hess, the Atlantic Ocean was expanding while the Pacific Ocean was shrinking. As old oceanic crust was consumed in the trenches, new magma rose and erupted along the spreading ridges to form new crust. In effect, the ocean basins were perpetually being "recycled," with the creation of new crust and the destruction of old oceanic lithosphere occurring simultaneously. (USGS)

Regenerating oceanic crust at the Mariana trench - image courtesy Wikipedia

अगस्त 24, 2012
Earthquake-Report.com has just opened a group at Linked-In.
To start up the group we have enabled a Poll question : Is USGS the most accurate seismological Bureau in the world ? 5 Multiple choice answers. If you are a Linked-In member, feel free to answer the poll, become a member (everyone can) and eventually start up your own discussion. Click here for our Linked-In group page.

Click on the picture to view how the seismoscope probably worked - image courtesy estium-concept.com

Primitive earthquake alerting equipment : the seismoscope, used in 132 AD (China)
The first seismoscope was developed by Chang Heng, the Royal Astronomer of the Bureau of Astronomy and Calendar in the year 132 A.D. during the Han Dynasty period. Initially made of bronze, with a diameter of about six feet, the seismoscope resembled a large urn, on the outside of which were eight dragon heads facing the eight principal directions of the compass.
Below each dragon head was a toad with its mouth opened toward the dragon.
The seismoscope would vibrate when an earthquake occurred, causing a ball to drop out of a dragon's mouth and be caught by a toad below. The noise produced by the dropping ball served notice of the earthquake, and the particular ball which fell gave the azimuthal direction of the earthquake.
The internal mechanism of the seismoscope is unknown, but probably employed either a pendulum or inverted pendulum connected to levers that ejected the balls when the instrument moved. The instrument is reported to have detected an earthquake 400 miles away that was not felt at the location of the seismoscope. (USGS)

Earthquake drills at Virginia schools (1 year after the M5.8 earthquake)
When the "Big One" rocked the East Coast one year ago, the earthquake centered on this rural Virginia town cracked ceiling tiles and damaged two local school buildings so badly that they had to be shuttered for good. Now as the academic year gets under way, students are reciting a new safety mantra: Drop, cover, and hold on.
Earthquake drills are now as ubiquitous as fire drills at Louisa County schools in central Virginia, where 4,600 students were attending classes when the 5.8-magnitude quake struck nearby on Aug. 23, 2011. Miraculously, no one was seriously hurt. $$$$ अधिक पढ़ें ...

अगस्त 23, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? Mineral, Virginia, 2011 - Magnitude : M5.8
Moderately heavy damage (VIII) occurred in a rural region of Louisa County southwest of Mineral. Widespread light to moderate damage occurred from central Virginia to southern Maryland including the District of Columbia area. Minor damage reported in parts of Delaware, southeastern Pennsylvania and southern New Jersey. Very strongly felt (VII) at Boston, Bumpass, Kents Store, Louisa, Mineral, Rhoadsville and Sumerduck. Felt strongly in much of central Virginia and southern Maryland. Felt throughout the eastern US from central Georgia to central Maine and west to Detroit, Michigan and Chicago, Illinois. Felt in many parts of southeastern Canada from Montreal to Windsor. (USGS) and (भूकंप Report.com)

Sand blow liquefaction @ New Madrid
Important surface deformation features left as a result of the 1811-1812 earthquakes are the Reelfoot fault scarp, a large sand blow liquefaction field, and Big Lake and St. Francis sunklands in northeast Arkansas. The scarp is an uplift of the surface above the fault. The New Madrid earthquakes littered the region with sand blows. Many of these features can be seen today as white splotches in agricultural fields. (USGS)

Sand blows - images courtesy show-me.net

अगस्त 22, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? Queen Charlotte Island (Canada), 1949 - Magnitude : M8.1
Canada's largest historic earthquake since 1700.
The shaking was so severe on the Queen Charlotte Islands that cows were knocked off their feet, and a geologist with the Geological Survey of Canada working on the north end of Graham Island could not stand up. Chimneys toppled, and an oil tank at Cumshewa Inlet collapsed. In Terrace, on the adjacent mainland, cars were bounced around, and standing on the street was described as "like being on the heaving deck of a ship at sea". In Prince Rupert, windows were shattered and buildings swayed.

New Madrid Seismic zone (USA)
The New Madrid Seismic Zone (NMSZ) is the most active seismic area in the United States east of the Rocky Mountains. The NMSZ is located in southeastern Missouri, northeastern Arkansas, western Tennessee, western Kentucky and southern Illinois. Southwestern Indiana and northwestern Mississippi are also close enough to receive significant shaking from large earthquakes occurring in the NMSZ.

Haiti's National Palace will be demolished by ... a charity !
President's official residence, all but destroyed in 2010 earthquake, will be demolised by Sean Penn charity. Haiti's crumpled National Palace will be torn down, with demolition work to begin in the next 10 days on the building all but destroyed in the 2010 earthquake, the country's government has announced. $$$$ अधिक पढ़ें ...

अगस्त 21, 2012

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? Peru, 1985 - Magnitude : M6.3
At least 100 people injured, 60 homes destroyed and damage to other buildings in the Chimbote area. Felt along the coast of Peru from Chiclayo to Chincha.

कैलिफोर्निया अंततः सागर में गिर?
No. The San Andreas Fault System, which crosses California from the Salton Sea in the south to Cape Mendocino in the north, is the boundary between the Pacific Plate and North American Plate. The Pacific Plate is moving northwest with respect to the North American Plate at approximately 56 millimeters per year (the rate your fingernails grow). The strike-slip earthquakes on the San Andreas Fault are a result of this plate motion. The plates are moving horizontally past one another, so California is not going to fall into the ocean. However, Los Angeles and San Francisco will one day be adjacent to one another (in approximately 15 million years)! (courtesy USGS)

Major Wellington quake less likely than first thought
A new study has found the probability of a major earthquake in Wellington isn't nearly as high as previously thought. A GNS report has found the likelihood of a quake along the Wellington fault line over the next 100 years is less than ten percent, instead of thirty percent as was thought before the study. $$$ अधिक पढ़ें ...

Dharan (Nepal) honours victims of 1988 quake
Dharan had suffered a massive loss in 1988's earthquake, the second biggest earthquake in Nepal's history. The earthquake with a magnitude 6.6 on the Richter scale occurred at 5:00 am.
On August 21 every year, the Dharan folks commemorate that Day when many Dharanes had lost their dear and near ones, many were rendered mutilated and helpless, and many had been displaced. The people of Dharan are committed to reducing the possible risks caused by earthquake. Now, some 80 percent houses in Dharan are earthquake resistant. $$$$ अधिक पढ़ें ...

अगस्त 20, 2012

With only a limited number of volunteers covering earthquakes and volcano activity, we need to make unfortunately priority choices. Scanning the world for earthquake relevant news is a great task for a volunteer interested in seismology. If you feel interested, please write us a few lines at earthquake.report (AT) outlook.com

क्या आपको पता था कि इतिहास में उसी दिन भूकंप हुआ था? Ethiopia - Djibouti 1989
Two people killed, two injured and damage and rockslides caused in the Galafi-Yoboki area, Djibouti. Ground cracks were observed at Galafi and four springs were destroyed in the area. Felt strongly throughout Djibouti. Damage and landslides occurred in northeastern Ethiopia, particularly along the Aseb-Adis Abeba highway. Felt at Aseb. component. (courtesy USGS)

What you should know about earthquakes
One of man's persistent fears about earthquakes is that the Earth will open and swallow everyone and everything nearby. Shallow crevasses can form during earthquake-induced landslides, lateral spreads, or other types of ground failures. Faults, however, do not open up during an earthquake. Movement occurs along the plane of a fault, not perpendicular to it. If faults opened up, no earthquake would occur because there would be no friction to lock them together. (courtesy USGS)

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