A light magnitude 2.6 earthquake hit 17.8 km (11 mi) away from Napa, California, United States, in the early morning of Tuesday, Apr 29, 2025 at 4.41 am local time (GMT -7). The quake had a very shallow depth of 9.3 km (5.8 mi) and was felt by many near the epicenter.
The closest larger town where the quake might have been felt is Agua Caliente, a town with 27,000 inhabitants in the United States, in 10 km (6 mi) distance southwest of the epicenter. People likely experienced very weak shaking there. Several smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking.The following table shows some of the places that might have been affected (or not) by the shaking.
We received 17 reports for this quake from the United States. The quake was reported to have been felt in up to approx. 50–80 km (31–50 mi) distance, with isolated cases to have felt the quake even 128 km (79 mi) away.
The majority of reports came from Napa (4 reports), a town with 80,000 inhabitants in California in 17.8 km (11 mi) distance southeast of the epicenter, United States, Yountville (3 reports), a town with 3,000 inhabitants in 6.7 km (4.1 mi) distance east of the epicenter, and Agua Caliente (2 reports) (10 km or 6 mi to the southwest). See the list of places where most people reported this quake further below.
Translate
The amount of shaking that occurs on the surface due to an earthquake is called the intensity. It is commonly measured on the so-called Modified Mercalli Intensity Scale (MMI) ranging from 1 (not felt) to 10 (extreme shaking), and given in Roman numerals as I,II,...IX, X, and often displayed with color codes ranging from light blue to dark red.Earthquake intensity depends mainly on the magnitude and depth of the quake as well as the distance from the epicenter: The further away, the less shaking intensity occurs.Read more about the MMI scale!
Mag | Depth | Time GMT2025-04-29 | Epicenter | Agency |
2.67 ± 0.12 | 9.3 km5.8 mi±0.5 km | 11:41:55.62 | 7 km WNW of Yountville, CAEpicenter uncertainty: ± 0.2 km | USGS (United States Geological Survey) |
2.7 ± 0.12 | 9.3 km5.8 mi | 11:41:55.62 | NORTHERN CALIFORNIA0 km (0 mi) epicenter difference with USGSEpicenter uncertainty: ± 1.1 km | EMSC (European-Mediterranean Seismological Centre) |
2.67 | 9.3 km5.8 mi | 11:41:55 | NORTHERN CALIFORNIA0 km (0 mi) epicenter difference with USGS | IRIS (Incorporated Research Institutions for Seismology) |
The earthquake occurred 2 days after a magnitude 3.1 earthquake had hit on Saturday, Apr 26, 2025, at 11:32 pm local time (America/Los Angeles GMT -7) in 52 km (32 mi) distance to the northwest: The largest quake near the epicenter of this quake during the 10 years before was an event of magnitude 5.1. It had occurred 8 years earlier, on Wednesday, Dec 14, 2016, at 08:41 am local time (America/Los Angeles GMT -8) in California, United States: The strongest-ever (since 1900) recorded quake in this area measured magnitude 7.9. It had occurred 119 years ago earlier, on Wednesday, Apr 18, 1906, at 01:12 pm local time (Universal Time GMT +0) in California, United States: Below is a list and map of larger or recent quakes that had occurred near the epicenter before this earthquake (within up to 100 km/61 mi distance, up to 300 km/183 mi for very large quakes above mag. 7). Filter and sort the list by magnitude or time.
Oldest quakes are shown in yellow, most recent in red.
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources. We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal).
Planned features:Thanks to your past donations, these features have been added recently: Thank you!