Seven more small earthquakes have been reported in central New Jersey between late Sunday night and early Monday morning, boosting the already high total of aftershocks from the main quake on April 5 to 70.
The U.S. Geological Survey, which monitors earthquakes all around the world, reported aftershocks ranging from magnitude 0.9 to magnitude 1.4 during the past 14 hours — most centered in Hunterdon County, and one centered in Somerset County.
It’s not clear whether anyone felt any of the new aftershocks.
The latest New Jersey quakes reported by the USGS were:
- Magnitude 1.0 — 3.1 miles southeast of Califon at 11:01 p.m. Sunday
- Magnitude 1.1 — 3.7 miles east-southeast of Califon at 1:02 a.m. Monday
- Magnitude 1.3 — 4.3 miles east-southeast of Califon at 1:17 a.m. Monday
- Magnitude 0.9 — 3.7 miles east-southeast of Califon at 2:30 a.m. Monday
- Magnitude 1.4 — 4.3 miles west of Gladstone at 6:23 a.m. Monday
- Magnitude 1.2 — 3.7 miles east-southeast of Califon at 6:50 a.m. Monday
- Magnitude 1.0 — 5.0 miles east-southeast of Califon at 9:59 a.m. Monday
Aftershocks are not unexpected, with experts saying they can continue for weeks or even months after an initial earthquake. So far, the strongest aftershock was magnitude 3.8 — originally reported as a 4.0 but later reclassified — and happened April 5 about 7½ hours after the initial quake of magnitude 4.8.
The big trembler was felt by more than 42 million people up and down the eastern seaboard, according to estimates. It was centered near Readington Township in Hunterdon County.
While no injuries were reported, video footage showed some houses and businesses with photos falling from walls and glasses shaking in cabinets. Minor structural damage in Newark forced residents in three buildings to be evacuated, and portions of the brick facade of a historic grist mill in Readington fell apart.
These are the aftershocks that were reported between April 5 and April 12:
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Len Melisurgo may be reached at LMelisurgo@njadvancemedia.com or on X at @LensReality.
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