H/t reader M.G.:
“Does calling this 7.0 quake just to hit the Japan coast an “aftershock” make sense to you? Comparing it to the 3/11 quake, they are now calling it an aftershock. What rubbish is this? They are evacuating towns, awaiting a Tsunami and calling it an aftershock….”
The Guardian, Feb 16, 2015: Japanese coastal towns evacuated as earthquake hits Pacific… Evacuations were ordered for towns closest to the coast in Iwate prefecture in Japan early on Tuesday morning after a strong earthquake with a preliminary magnitude of 6.9 was recorded… The Japan Meteorological Agency issued a tsunami warning and Japanese broadcaster NHK warned residents a one metre-high wave was expected to hit the coast of Iwate. The quake was measured at a depth of about six miles and shook much of north-east Japan even being felt in Tokyo, 430 miles away.
NBC News, Feb 16, 2015: Japan’s Meteorological Agency cast the quake as an aftershock of the 9.0 temblor that rocked Japan on March 11, 2011… “Because the 3/11 earthquake had such a strong impact, and because it’s an area where it was affected by the 3/11 Earthquake, we are describing this as an ‘aftershock,’” said agency seismologist, Yasuhiro Yoshida… USGS wasn’t characterizing Tuesday’s quake as an aftershock, considering it a separate event.
- M6.7 — 02-16 23:06:27 UTC
- M4.7 — 02-17 00:50:02 UTC
- M4.6 — 02-17 01:15:02 UTC
- M4.9 — 02-17 02:29:51 UTC
- M4.3 — 02-17 02:45:12 UTC (Japan Trench)
The quake was felt from Chiba to Hokkaido, a distance of over 1,000 kilometers.
This is the most powerful earthquake to hit Japan since a M7.1 on Oct. 25, 2013.
Some felt it on the West Coast of Canada (Islands)