A map from the U.S. Tsunami Warning System that indicates the site of Thursday’s earthquakes and subsequent tsunami threats. Photo credit: Screen shot, tsunami.gov

The Southern California coast is not expected to face any tsunami danger from a series of powerful earthquakes that struck Thursday off the coast of New Zealand.

The initial quakes registered magnitudes of 7.3 and 7.4, according to the U.S. Geological Survey. Around midday, a more powerful temblor measuring 8.1 occurred.

Tsunami warnings were issued for New Zealand for the original quakes, but later withdrawn. But another warning for that area was issued following the 8.1-magnitude shaker.

A tsunami watch was also issued for Hawaii, but also canceled, according to the National Weather Service’s Pacific Tsunami Warning Center.

The NWS’s National Tsunami Warning Center said the original quakes did not generate any tsunami threat for the coasts of California, Oregon, British Columbia, Washington or Alaska. Following the 8.1 quake, the center announced it was evaluating the threat, but no warnings for the U.S. coast were immediately issued.

The center indicated that hourly updates would be posted.

Retired USGS Seismologist and Southland earthquake guru Lucy Jones posted on Twitter that a tsunami was unlikely to be an issue in California, saying, “We really are too far away.”

She noted that the 2011 Japan earthquake that prompted a local tsunami warning was a 9.0-magnitude shaker “that moved over 30 times more water than this event.”

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