A strong earthquake with a preliminary magnitude of 5.6 jolted northeastern Japan on Monday, public broadcaster NHK said. The quake, at 11:46 a.m. (10:46 p.m. ET), was also felt in Tokyo.
There were no immediate reports of injuries or damage and no tsunami warning was issued.
Earthquakes
Swatara Township officials have requested the assistance of the U.S. Geological Survey and other experts to investigate a shaking -- that feels like explosions -- that people near the township building are reporting.
There are no major construction projects, and the shaking seems to be located right around the township building, according to officials.
There are no major construction projects, and the shaking seems to be located right around the township building, according to officials.
© Unknown
© USGS
Earthquake Location
Earthquake Location
Friday, October 07, 2011 at 08:58:29 UTC
Friday, October 07, 2011 at 08:58:29 PM at epicenter
Time of Earthquake in other Time Zones
Location:
32.389°S, 178.902°W
Depth:
40 km (24.9 miles)
Region:
SOUTH OF THE KERMADEC ISLANDS
Distances:
106 km (65 miles) S of L'Esperance Rock, Kermadec Islands
359 km (223 miles) SSW of Raoul Island, Kermadec Islands
762 km (473 miles) NE of Auckland, New Zealand
1136 km (705 miles) NNE of WELLINGTON, New Zealand
© USGS
Thursday, October 06, 2011 at 07:37:03 UTC
Thursday, October 06, 2011 at 05:37:03 PM at epicenter
Time of Earthquake in other Time Zones
Location:
9.712°N, 138.292°E
Depth:
35.7 km (22.2 miles)
Region:
STATE OF YAP, FED. STATES OF MICRONESIA
Distances:
27 km (16 miles) NE of Yap, Micronesia
493 km (306 miles) ENE of KOROR, Palau
818 km (508 miles) WSW of HAGATNA, Guam
899 km (558 miles) WSW of Rota, Northern Mariana Islands
© USGS
Thursday, October 06, 2011 at 11:12:29 UTC
Thursday, October 06, 2011 at 08:12:29 AM at epicenter
Time of Earthquake in other Time Zones
Location:
24.181°S, 64.250°W
Depth:
9.5 km (5.9 miles)
Region:
JUJUY, ARGENTINA
Distances:
106 km (65 miles) E of San Salvador de Jujuy, Jujuy, Argentina
129 km (80 miles) N of El Quebrachal, Salta, Argentina
135 km (83 miles) ENE of Salta, Salta, Argentina
1274 km (791 miles) NNW of BUENOS AIRES, D.F., Argentina
© ESA/HPF/DLR
ESA's GOCE mission has delivered the most accurate model of the 'geoid' ever produced. Red corresponds to points with higher gravity, and blue to points with lower gravity.
ESA's GOCE mission has delivered the most accurate model of the 'geoid' ever produced. Red corresponds to points with higher gravity, and blue to points with lower gravity.
Anything that has mass has a gravity field that attracts objects toward it. The strength of this field depends on a body's mass. Since the Earth's mass is not spread out evenly, this means its gravity field is stronger in some places and weaker in others.
The magnitude 9.0 Tohoku-Oki temblor in March was the most powerful earthquake to hit Japan and the fifth-most powerful quake ever recorded. To see how the temblor might have deformed the Earth there, scientists used the Gravity Recovery and Climate Experiment (GRACE) satellites to analyze the area's gravity field before and after the quake.
The researchers found the Tohoku-Oki quake reduced the gravity field there by an average of two- millionths of a gal by slightly thinning the Earth's crust. In comparison, the strength of the gravitational pull at the Earth's surface is, on average, 980 gals. (The gal, short for Galileo, is a unit of acceleration; one gal is defined as one centimeter per second squared.)
© Unknown
Is Katla about to erupt again?
Is Katla about to erupt again?
Measuring devices this morning have picked up a large earthquake swarm, usually a tell-tale sign of a potential volcanic eruption.
The Icelandic Government last month announced it was increasing monitoring Katla, which is one of Europe's most feared volcanoes, following a consistent and strengthening spike of tremors and quakes.
And last week, officials at the Iceland Meteorological Office confirmed a series of smaller eruptions had occurred in July strengthening fears of an imminent, much larger, eruption.
Evidence gathered by geophysicists showed the magma had risen to the height of the glacier ice above the volcano causing it to melt.
They said the high seismic tremors recorded on July 8 and 9 confirmed Katla had become active and started small eruptions.
The western Atlantic Ocean island of Bermuda, which was hit by its first earthquake in over a decade in April, has been rattled by two moderate quakes.
The earthquakes, both measuring 4.5 magnitude on the Richter Scale, struck at 10:18 PM and 10:36 PM local time on Monday.
The subsea quakes, the strongest to be recorded in the region in more than 20 years, were centred about 80 miles (130 km) south of Hamilton, the capital of the British overseas territory.
According to the United States Geological Survey (USGS), the quakes (1st, 2nd) occurred at depths ranging between 10 and 14 kilometres.
The earthquakes, both measuring 4.5 magnitude on the Richter Scale, struck at 10:18 PM and 10:36 PM local time on Monday.
© Google Earth
Epicentre of Monday night's earthquakes
Epicentre of Monday night's earthquakes
According to the United States Geological Survey (USGS), the quakes (1st, 2nd) occurred at depths ranging between 10 and 14 kilometres.
Sunday, October 02, 2011 at 09:19:25 UTC
Sunday, October 02, 2011 at 05:19:25 PM at epicenter
Time of Earthquake in other Time Zones
Location:
8.385°N, 126.723°E
Depth:
46.9 km (29.1 miles)
Region:
MINDANAO, PHILIPPINES
Distances:
43 km (26 miles) E of Hinatuan, Mindanao, Philippines
143 km (88 miles) ESE of Butuan, Mindanao, Philippines
864 km (536 miles) W of KOROR, Palau
929 km (577 miles) SE of MANILA, Philippines
© Unknown
They targeted the Afar region in the Horn of Africa after a recent surge in volcanic activity and earthquakes plus the appearance of giant cracks in the rocky surface. Tectonic plates in the area are pulling apart and gradually creating a new ocean.
Now, the scientists have mapped the colossal underground lake of magma that lies up to 20 miles (32km) below the earth's surface.
"We estimate that there is 3,000 cubic kilometers of molten rock under Afar -- enough to cover all of London ... with around a kilometer of rock," said Kathy Whaler, professor of geophysics at Edinburgh University.
The reservoir is under such pressure that it has forced tongues of molten rock up towards the surface, producing eruptions and earthquakes.
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