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NASA recorded two “big earthquakes” on Mars



Mars is not dead yet.

NASA announced on Thursday that its InSight lander, which detects geological activities on Mars, recently recorded “two strong, clear earthquakes” in the same area where the lander had previously observed two major earthquakes in 2019. This indicates that there is a seismically active area on Mars-a seemingly dry place with no life on the surface, but may be active underground.

NASA wrote: “The magnitude 3.3 and 3.1 earthquakes originated in an area called Cerberus Fossae, further supporting the idea that the location is seismically active. The new earthquakes occurred on March 7 and March 1

8.

(These earthquakes are considered relatively light earthquakes on Earth, but they are certainly rumblings that people can feel, depending on the distance between them and the depth of the earthquake.)

Cerberus Fossae is an area on Mars with steep valleys passing through ancient volcanic plains. There is evidence that a landslide occurred here, possibly due to repeated shaking that caused the boulders to fall off.

The dome-shaped seismograph of the InSight lander is called the Seismic Experiment for Internal Structure (SEIS).

The dome-shaped seismograph of the InSight lander is called the Seismic Experiment for Internal Structure (SEIS).

A visible landslide on the steep slope of Cerberus Fossae.

A visible landslide on the steep slope of Cerberus Fossae.

Picture: NASA/JPL-Caltech/University.Arizona

To date, the InSight lander has recorded more than 500 earthquakes (it landed in November 2018), which indicates that there are indeed some volcanic active places under Mars, which may flow and flow like hot lava (magma) on Earth .

Ali Bramson, a scientist at the Lunar and Planetary Laboratory of Arizona State University, told Mashable in 2019: “Underground magma may even create the underground lake planetary scientist discovered under the South Pole of Mars in 2018.” You need A heat source. “What causes this heat source?” Bramson asked. “The only thing we can think of is the underground magma chamber, which must be active recently.”

Now is the prime time to record more Martian earthquakes. On Mars, the northern winter can be very windy, which disturbs the InSight seismograph and makes detecting earthquakes impossible. But now the wind has subsided.

In a statement, the seismologist John Clinton of the InSight team said: “It is great to observe the earthquake again after recording wind noise for a long time.”




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