temblor

Monday’s magnitude 5.2 temblor was an uneasy reminder of the fault’s power.

Monday’s 5.2 magnitude temblor marked another success for California’s early earthquake warning system, with users in some areas saying they got notifications on their phone before they felt shaking.

Monday’s magnitude 5.2 temblor marked another success for California’s earthquake early warning system, with users in some areas saying they received alerts on their phones before they felt shaking.

The temblor was centered three miles south of Julian and 17 miles east of Ramona and was felt across the region.

The magnitude 7.4 temblor, which could be felt as far as Shanghai, killed about 18 people.