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M 4.8 – 2024 Whitehouse Station, New Jersey Earthquake (earthquake.usgs.gov)

453 points by theandrewbailey · 863 days ago · 355 comments on HN

Article summary

A 4.8 magnitude earthquake occurred in Whitehouse Station, New Jersey, with some people reporting feeling the quake in nearby areas, including New York and Massachusetts. The USGS suggests this was the main earthquake of a series, with at least one aftershock reported. The earthquake's impact varied, with some people experiencing strong vibrations and others not feeling it at all. The quake's effects were felt differently depending on the location and floor level of the observer.

Main themes

  • Earthquake impact
  • Seismic activity
  • East coast geology
  • Aftershocks
  • Earthquake experience

What commenters say

  • The earthquake's magnitude of 4.8 is significant and not 'literally nothing' as some have suggested, with many people reporting feeling the quake.
  • The East coast's older, harder rocks can make earthquakes feel stronger than those on the West coast, with this quake feeling similar to a 5.8 in California.
  • The quake's effects varied greatly depending on the location and floor level, with some people on higher floors feeling it more strongly than those on lower floors.
  • The earthquake was likely caused by post-glacial uplift, with the Ramapo fault line being a possible culprit.
  • Some people did not feel the earthquake at all, while others experienced strong vibrations and were frightened by the event.
  • Modern buildings with features like tuned mass dampers can reduce the impact of earthquakes, with some people in high-rise buildings not feeling the quake.
  • The earthquake was a rare event for the region, with some people experiencing their first quake, and its effects were felt over a wide area, including New York and Massachusetts.