Sunday, July 14, 2013

EARTH CHANGES: New Research Reveals Earth's Core Affects Length Of Day!

July 14, 2013 - EARTH Research at the University of Liverpool has found that variations in the length of day over periods of between one and 10 years are caused by processes in the Earth's core.

The Earth rotates once per day, but the length of this day varies. A year, 300million years ago, lasted about 450 days and a day would last about 21 hours. As a result of the slowing down of the Earth's rotation the length of day has increased.

The rotation of the earth on its axis, however, is affected by a number of other factors - for example, the force of the wind against mountain ranges changes the length of the day by plus or minus a millisecond over a period of a year.

Professor Richard Holme, from the School of Environmental Sciences, studied the variations and fluctuations in the length of day over a one to 10 year period between 1962 and 2012. The study took account of the effects on the Earth's rotation of atmospheric and oceanic processes to produce a model of the variations in the length of day on time scales longer than a year.

Professor Holme said: "The model shows well-known variations on decadal time scales, but importantly resolves changes over periods between one and 10 years. Previously these changes were poorly characterised; the study shows they can be explained by just two key signals, a steady 5.9 year oscillation and episodic jumps which occur at the same time as abrupt changes in the Earth's magnetic field, generated in the Earth's core.

He added: "This study changes fundamentally our understanding of short-period dynamics of the Earth's fluid core. It leads us to conclude that the Earth's lower mantle, which sits above the Earth's outer core, is a poor conductor of electricity giving us new insight into the chemistry and mineralogy of the Earth's deep interior."

The research was conducted in partnership with the Universite Paris Diderot and is published in Nature. - Space Daily.

GEOLOGICAL UPHEAVAL: 6 Houses Collapse, 20 Damaged In Dhanbad, In Northeastern India!

July 14, 2013 - INDIA - Six houses in Dhanbad's Dharmabandh locality collapsed in the wee hours of Sunday while over 20 houses developed cracks. However, no person was injured in the mishap.

The incident has rendered more than 100 people homeless and they had to spend the night under trees. The area is situated in the coal belt of Dhanbad and illegal mining is considered to be the reason behind the incident. The mine mafias excavate coal unlawfully resulting in changes in the topography of the area.

A source said around 5am people could feel tremors in their sleep. First they thought a quake had hit Dhanbad and rushed out to escape.

After sometime, six houses collapsed to the ground, some were razed to the ground while others were partially damaged. The local administration has started relief activities to help the victims Dhanbad SP Anoop T Mathew said no person has suffered injuries in the incident. "I have come to know about the development. Some houses have collapsed but no one suffered injuries," said Mathew.

A victim, Sunita Devi told reporters that the ceiling fan in the asbestos-roofed house started shaking suddenly. The lady said she realized that some quake had hit the area and raised a cry for everyone to vacate the house. Several household items were buried in the incident. A similar situation was faced by other households in the locality.

The district administration has launched an investigation into the incident. The Dhanbad-Ranchi main line is situated just 500 meters away from the place of the incident.

Dhanbad DC Prashant Kumar said the district administration had started the process of rehabilitating the affected families. "I had sent a team of experts to the affected place. The process of rehabilitating them has also begun," said Kumar. - Times of India.

GLOBAL VOLCANISM: Ecuador's Tungurahua Volcano Violently Explodes - Tremors Felt For Hundreds Of Miles!

July 14, 2013 - ECUADORAt least 200 people have been evacuated after a volcano in Ecuador erupted and spewed ash miles into the air.

The “strong explosion” at the Tungurahua volcano could be felt hundreds of miles away, the Geophysics Institute reported. It spewed stones, gases and ash more than 5 km (3.1 miles) into the sky, authorities said.

WATCH: Huge Explosion at Tungurahua Volcano.

The clouds of ash and gas could be seen as far away as the capital Quito, about 153km (95 miles) north of the volcano. There were no reported deaths, according to local media.

Authorities declared an “orange alert,” the second highest warning level after red, following the eruption at 6.47 am local time on Sunday. Residents were evacuated from villages in areas near the volcano on the eastern Andean range, said Lourdes Mayorga from the National Risk Management Secretariat.

WATCH: Volcano In Ecuador Explodes.

Some residents had issues evacuating because of the volcanic rocks and minor flooding following heavy rains. After remaining dormant for eight decades, Tungurahua – “throat of fire” in the local Quichua language – rumbled back to life in 1999 and has been active ever since. - SKY News.