I can't ever remember seeing three earthquakes under Portland in less than ninety minutes. Â Â But it happened Thursday night. Â It's doubtful these are foreshadowing a big quake to come - but the quakes are for now, somewhat of a mystery. Â Surprise Micro-quakes Under SE … [Read more...]
Japan Aftershocks: More Than One-Thousand Aftershocks So Far
The aftershock map to the right is impressive: every dot is an aftershock of the 9.0 mega-quake that rocked Japan and created a tsunami on March 11, 2011. But guess what? This image was created just 24 hours after that quake. By that point there had 'only' been about 100 aftershocks. Now that … [Read more...]
Hiking On The San Andreas Fault In Southern California
It's fame has been overshadowed recently by subduction zone faults under oceans that create mega-quakes followed by a tsunami. But the San Andreas fault in California has long been one of the most feared, revered and certainly one of the most studied faults in the United States. And if you're … [Read more...]
Does Japan Earthquake Increase Odds Of Other Major Quakes?
If there's one thing I personally worry about for Oregon, Washington and California...it's a big quake. The concern might be linked to the frightening quakes I went through as a kid in Southern California. I can tell you where I was and what I was doing when each of them hit. But even if … [Read more...]
Why Japan Mega-Quake Causes So Many Aftershocks – And How Long Aftershocks May Continue
You're looking at my bsussman@koin.com inbox from Saturday night March 12, 2011. Take a close look. Except for one email from American Express and another from www.koinlocal6.com -- it's all from the USGS. That is, the scientists who track quakes around the world. Each USGS email is letting … [Read more...]
Tsunami Wave Map Shows How Much Energy Reached Pacific Northwest
A picture is worth a thousand words, right? Well, in the world of tsunamis, this picture must be worth about a million. It's a NOAA Image that shows the highest water surges in the most intense colors. The purples and pinks are near the epicenter off the east coast of Japan. Three Things … [Read more...]
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