JAKARTA - Picture this: A 10-meter wide asteroid hits Earth and explodes in the atmosphere with the energy of a small atomic bomb. Frightened by thunderous sounds and shaking walls, people rush out of their homes, thinking that an earthquake is in progress. All they see is a twisting trail of debris in the mid-day sky. This is what happened on Oct. 8th around 11 am local time in the coastal town of Bone, South Sulawesi.
Meteor scientists have given it their full attention. "The explosion triggered infrasound sensors of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) more than 10,000 km away," report researchers Elizabeth Silber and Peter Brown of the Univ. of Western Ontario in an Oct. 19th press release. Their analysis of the infrasound data revealed an explosion at coordinates 4.5S, 120E (close to Bone) with a yield of about 50 kiloton of TNT. That's two to three times more powerful than World War II-era atomic bombs.
The asteroid that caused the blast was not known before it hit and took astronomers completely by surprise. According to statistical studies of the near-Earth asteroid population, such objects are expected to collide with Earth on average every 2 to 12 years. "Follow-on observations from other instruments or ground recovery efforts would be very valuable in further refining this unique event," say Silber and Brown.
There are no reactions on this blog entry yet. Be the first one to give a reaction here!
Log in to write a reaction
You are not logged in to the website. You have to be logged in to write a reaction on this blog entry.
· If you already have an account, please login. · If you have lost your password, please retrieve it. · If you don't have an account yet, you can create one.
ABOUT THIS ENTRY
Add this blog entry to your email, your own blog, MySpace, Facebook, or whatsoever via AddThis:
Login if you want to receive emails for reactions on this blog entry. You will receive an update as soon as a reaction on this blog entry is posted.
JAKARTA - Picture this: A 10-meter wide asteroid hits Earth and explodes in the atmosphere with the energy of a small atomic bomb. Frightened by thunderous sounds and shaking walls, people rush out of their homes, thinking that an earthquake is in progress. All they see is a twisting trail of debris in the mid-day sky. This is what happened on Oct. 8th around 11 am local time in the coastal town of Bone, South Sulawesi.
