Two powerful offshore earthquakes struck the southwest Pacific early Wednesday (April 30) morning. But according to geological agencies, neither caused any damage nor triggered tsunami warnings.

Distant or far-field When an under-the-sea earthquake occurs outside the Philippines or in the Pacific Ocean and generates a tsunami. Depending on the location, this has a longer lead time.

CANNON BEACH Ore. (KPTV) – A magnitude 7.0 earthquake off the Northern California coast caused a tsunami warning in parts of Oregon Thursday. The event, which occurred at approximately 10:45 a.m ...

Tsunamis are a routine but often deadly feature of the Pacific Ocean. Tsunami waves are created ... units in the Pacific Northwest develop location specific evacuation plans.

Researchers developed a fourth-generation buoy in Seattle that can detect an earthquake-triggered tsunami 10-15 minutes ...

But tsunami experts watching that data did not know who to tell. Their system showed no threats to coastal communities on either side of the Pacific Ocean, which at the time was the only region ...

HONOLULU (KHON2) — You’ve seen the new signs that have popped up all the islands indicating whether you are entering or leaving a tsunami hazard area. But how much do you really know about ...

For example, when the waves of the massive tsunami generated by last year's magnitude 9.0 Japan earthquake crossed the Pacific Ocean ... outlines show the location of mid-ocean ridges, peaks ...

First, a tsunami, which literally translates to “harbor wave” in Japanese, is a series of waves that inundate coastlines. Tsunamis are generated by an upward lift of waterway bottoms ...