Tremors may shake the ground.Logical formLearned from7 sentences. A tremor may be centred about some kilometers.Logical formLearned from7 sentences. Tremors can be aftershocks.Logical formLearned from7 sentences. An increase can be in tremors.Logical formLearned from7 sentences. A tremor may be rased.Logical formLearned from7 sentences. A shock may pertain-to a tremor.Logical formLearned from7 sentences. An earthquake may send tremors.Logical formLearned from7 sentences. A percent may pertain-to tremors.Logical formLearned from7 sentences. Tremors may cause damage.Logical formLearned from7 sentences. A tremor may be felt over an area.Logical formLearned from7 sentences. Seismic activity may account for half of tremors.Logical formLearned from7 sentences. Residents may feel tremors.Logical formLearned from7 sentences. A tremor may spark panic.Logical formLearned from7 sentences. An epicentre may pertain-to a tremor.Logical formLearned from7 sentences. Tremors may pertain-to a nation.Logical formLearned from7 sentences.