yes! reason why mag change 2x ang reports, its because it will take some time to get the real magnitude. it's been reported first from 7.9magnitude, then 30mins later it was proclaimed as 8.8 (thats the time akong gi post), then 15mins later, they said it's 8.9magniture...
bottomline is, this is a pretty big ass earthquake, tsunami warnings have been issued including Philippines. let us pray sa mga affected countries, and to our brothers and sisters naa sa japan for their safety.