32 ms·
Curious about the 4.7 vs 4.8. Official source here says 4.8 but title says 4.7. APNews did something similar showing 4.8 in the headline but 4.7 in the text.
by neogodless 3y ago
Curious about the 4.7 vs 4.8. Official source here says 4.8 but title says 4.7.
APNews did something similar showing 4.8 in the headline but 4.7 in the text.
Coincidentally the depth is 4.7 km. Wonder if there's just a transpose error and a lot of copy/paste.
- jedberg 3y agoEarthquake magnitude usually changes a bunch in the first hour or two as new data comes in. For example some of the data comes from stations on the other side of the planet, and it takes a while for the wave to propagate that far.
- neogodless 3y agoThat's one possible explanation, though I've been on usgs.gov a lot from the first I heard of this, and I've only ever seen 4.8 on it. Odd, also that the OP sharing this shared a link to 4.8 but put 4.7 in the title. But the text on that page might trick your eye, between "M 4.8 - 7 km N" and "Magnitude 4.8 mwr Depth 4.7 km".
- asveikau 3y agoThose of us in California are used to this. We feel the shake and look it up, and see one number. News articles get written with one of those numbers. After a while it changes, possibly a few times, to some number close to the initial report.
- ccurrens 3y agoI've been watching USGS since I felt it. It was originally 4.8, then it was 4.7 for a little bit, and they brought it back up to 4.8.
- deleted 3y ago[deleted]
- neogodless 3y agoThat helps. I must've just missed it when it said 4.7. Most articles just state 4.7 (or 4.8) though a few are now saying "preliminary magnitude of 4.7." By the time I saw it, it said M 4.8 mwr with uncertainty ± 0.0. Also interesting is the list of two "catalogs" with mostly similar data but very different depth reports: https://earthquake.usgs.gov/earthquakes/eventpage/us7000ma74/technical https://earthquake.usgs.gov/earthquakes/eventpage/us7000ma74...