Minor mag. 0.4 earthquake - 4km E of Mammoth Lakes, CA on Thursday, 18 October 2018
18 Oct 18:18 UTC: First to report: USGS after 2 hours and 8 minutes.
Local time at epicenter: 2018-10-18 08:09:38 -08:00
Depth: 4.2 km
Epicenter latitude / longitude: 37.63083°N / 118.93667°W (California, United States)
Nearest volcano: Mammoth Mountain (8 km / 5 mi)
Nearby towns and cities:
4 km (2 mi) SE of Mammoth Lakes (pop: 7,900)
21 km (13 mi) SE of June Lake (pop: 600)
21 km (13 mi) NW of Aspen Springs (pop: 100)
123 km (76 mi) NE of Fresno (pop: 520,100)
148 km (92 mi) NE of Visalia (pop: 130,100)
181 km (113 mi) E of Modesto (pop: 211,300)
Primary data source: USGS
Estimated released energy: 2.5 x 105 joules (0.07 kilowatt hours) [learn more]
Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
|Time||Mag. / Depth||Location||Source|
|2018-10-18 08:09:38 -08:00 (18 Oct 16:09:38 UTC)||M 0.4 / 4.2 km||- 4km E of Mammoth Lakes, CA||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.At magnitude 0.4, this quake was too small to be felt by humans, but it was recorded instrumentally.