A tremor may be braced for aftershocks.Logical formLearned from9 sentences. Tremors may pertain-to a continent.Logical formLearned from9 sentences. Tremors can be shallow.Logical formLearned from9 sentences. A warning can be (earth tremors).Logical formLearned from9 sentences. Landslides may be triggered by tremors.Logical formLearned from9 sentences. Tremors may cause landslides.Logical formLearned from9 sentences. An epicenter of a tremor can be kilometers.Logical formLearned from9 sentences. A tremor may hit some kilometers.Logical formLearned from9 sentences. Tremors may be expected.Logical formLearned from9 sentences. A time may pertain-to a tremor.Logical formLearned from8 sentences. Tremors can be deadly.Logical formLearned from8 sentences. A tremor may occur at some time.Logical formLearned from8 sentences. A tremor may claim some lives.Logical formLearned from8 sentences. Tremors may be felt in parts of a country.Logical formLearned from8 sentences. A (classification system) may measure an intensity of tremors.Logical formLearned from8 sentences.