Indonesia is no stranger to major earthquakes . NEW : At least 100 killed , another 400 injured , state disaster declared . Tsunami watch quickly expires , Pacific Tsunami Warning Center says . Older building collapsed in Tasikmalaya in Indonesian island of Sumatra , witness says . Series of storms hit Indonesia 's Sumatra Island three weeks ago .
NEW : At least 100 killed , another 400 injured , state disaster declared . Tsunami watch quickly expires , Pacific Tsunami Warning Center says . Older building collapsed in Tasikmalaya in Indonesian island of Sumatra , witness says . Series of storms hit Indonesia 's Sumatra Island three weeks ago .