Written by on . Last updated December 15th, 2025.

Under land 7 miles from Santa Rosa in The United States, a shallow Magnitude 4.0 earthquake occurred in the afternoon of Sunday December 14th, 2025. The earthquake struck near a very densely populated region. The USGS has indicated there is a potential risk at tsunami's following this earthquake.

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Earthquake Summary

The earthquake struck on land in The United States, 7 miles (12 km) south-east of Santa Rosa in California. The center of this earthquake had a very shallow depth of 1 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Dec 14, 2025 03:30PM (Los Angeles Time)
- Dec 14, 2025 23:30 Universal Time.
Location: 7 mi SE of Santa Rosa, California, The United States.
Coordinates 38°22'25"N 122°36'6"W.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 4.0
Detected by 148 stations. Maximum Error Range ±0.2 .
Depth: 1 mi (2 km)
A very shallow depth.
Max. Intensity:
VI
Strong

On the Modified Mercalli Scale.
Tsunami Risk: Potential tsunami risk
The USGS has indicated there is a potential risk at tsunami's following this earthquake.
Always stay cautious - More info here.

Potential tsunami risk

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

There is a potential tsunami risk in the aftermath of this earthquake, immediately evacuate to higher grounds away from coastal areas and monitor advice from local authorities. The US Geographic Survey organization has indicated a potential risk for tsunami's following this earthquake.

Tsunami Risk Factors

Factor Under Sea? MAG-6.5 or stronger? Shallow depth?
Explanation Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. Under MAG 6.5: Very unlikely to cause a tsunami.
MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes.
MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake Not this earthquake.
This earthquake appears to have struck on land far from any coast.
Not this earthquake.
This earthquake had a magnitude of 4. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 1 mi (2 km). Earthquakes this shallow could trigger a tsunami.

Minimal impact predicted

Based on scientific estimates by the US Geographic Survey (USGS), the risk of high fatalities for this earthquake is classified at level GREEN (low). They expect an 69% likelyhood of between 0 and 1 fatalities, and a 98% chance that the number of fatalities falls no higher than 10.

The USGS classifies the economic impact of this earthquake at level GREEN (low). They expect an 65% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 96% chance that the economic impact of this earthquake falls no higher than 10 million USD.

Roughly 8 million people exposed to shaking

This earthquake may have been felt by around 8 million people. That is the expected population size of the area exposed to a level of shaking of II or higher on the Modified Mercalli scale according to the USGS.

Moderate shaking and very light damage may have been experienced by an estimated 2,390 people. At V, it is the highest MMI level this earthquake has caused. Intensity level II was experienced by the majority of people (around 7.2 million). In their region, very weak shaking and no damage can be expected.

People MMI Level Shaking Damage
5,925,000
I
Not noticable None
7,208,000
II
Very weak None
448,000
III
Weak Probably none
28,490
IV
Light Likely none
2,390
V
Moderate Very light
0
VI
Strong Light
0
VII
Very Strong Moderate
0
VIII
Severe Moderate to heavy
0
IX
Violent Heavy
0
X
Extreme Very heavy

Nearby towns and cities

This earthquake may have been felt in The United States . The closest significant population center near the earthquake is Rohnert Park in California, The United States. Rohnert Park is located 6 miles (9 km) east-northeast of the epicenter. Rohnert Park experienced an earthquake intensity (MMI Scale) of roughly III. That level implies weak shaking and probably no damage.

Multiple large cities are in proximity of today's earthquake. Santa Rosa is located 7 mi to the northwest and experienced an intensity of III (weak shaking, probably no damage). San Francisco is located 42 mi to the south-southeast and experienced an intensity of III (weak shaking, probably no damage). San Jose is located 81 mi to the south-southeast and experienced an intensity of I (not noticeable, no damage).

An overview of nearby towns and cities is available in the overview below. If places don't have intensity data available, it likely means the experienced impact in those places was fairly small.

Overview of nearby places

Distance Place Intensity (MMI)
6 mi (9 km)
WSW from epicenter
Rohnert Park

California, The United States.
III
Weak
7 mi (12 km)
NW from epicenter
Santa Rosa

California, The United States.
III
Weak
10 mi (16 km)
S from epicenter
Petaluma

California, The United States.
III
Weak
17 mi (27 km)
NW from epicenter
Windsor

California, The United States.
II
Weak
18 mi (29 km)
ESE from epicenter
Napa

California, The United States.
III
Weak
19 mi (30 km)
S from epicenter
Novato

California, The United States.
III
Weak
23 mi (37 km)
SE from epicenter
American Canyon

California, The United States.
II
Weak
27 mi (43 km)
SE from epicenter
Vallejo

California, The United States.
II
Weak
28 mi (45 km)
S from epicenter
San Rafael

California, The United States.
II
Weak
30 mi (48 km)
SE from epicenter
Hercules

California, The United States.
II
Weak
30 mi (49 km)
SSE from epicenter
Pinole

California, The United States.
II
Weak
32 mi (51 km)
SSE from epicenter
San Pablo

California, The United States.
II
Weak
32 mi (51 km)
ESE from epicenter
Fairfield

California, The United States.
II
Weak
32 mi (51 km)
ESE from epicenter
Suisun

California, The United States.
II
Weak
33 mi (53 km)
SE from epicenter
Benicia

California, The United States.
II
Weak
34 mi (54 km)
E from epicenter
Vacaville

California, The United States.
II
Weak
34 mi (54 km)
SSE from epicenter
Richmond

California, The United States.
II
Weak
35 mi (57 km)
SSE from epicenter
El Cerrito

California, The United States.
II
Weak
35 mi (57 km)
SE from epicenter
Martinez

California, The United States.
II
Weak
37 mi (60 km)
SSE from epicenter
Albany

California, The United States.
II
Weak
39 mi (63 km)
SSE from epicenter
Berkeley

California, The United States.
II
Weak
41 mi (66 km)
SSE from epicenter
Chinatown

California, The United States.
II
Weak
42 mi (67 km)
SE from epicenter
Concord

California, The United States.
II
Weak
42 mi (67 km)
SE from epicenter
Pleasant Hill

California, The United States.
II
Weak
42 mi (68 km)
SSE from epicenter
San Francisco

California, The United States.
III
Weak
43 mi (69 km)
SE from epicenter
Lafayette

California, The United States.
II
Weak
43 mi (70 km)
SSE from epicenter
Mission District

California, The United States.
II
Weak
43 mi (70 km)
SE from epicenter
Walnut Creek

California, The United States.
II
Weak
43 mi (70 km)
SSE from epicenter
Oakland

California, The United States.
II
Weak
45 mi (73 km)
SSE from epicenter
Alameda

California, The United States.
II
Weak
46 mi (74 km)
ESE from epicenter
Pittsburg

California, The United States.
II
Weak
47 mi (75 km)
S from epicenter
Daly City

California, The United States.
II
Weak
48 mi (77 km)
ENE from epicenter
Davis

California, The United States.
II
Weak
50 mi (80 km)
ENE from epicenter
Woodland

California, The United States.
II
Weak
50 mi (81 km)
ESE from epicenter
Antioch

California, The United States.
II
Weak
50 mi (81 km)
SE from epicenter
Danville

California, The United States.
II
Weak
51 mi (82 km)
SSE from epicenter
San Leandro

California, The United States.
II
Weak
51 mi (82 km)
SSE from epicenter
South San Francisco

California, The United States.
I
Not felt
52 mi (84 km)
SSE from epicenter
San Bruno

California, The United States.
II
Weak
53 mi (85 km)
S from epicenter
Pacifica

California, The United States.
II
Weak
53 mi (86 km)
SE from epicenter
San Ramon

California, The United States.
II
Weak
55 mi (88 km)
SSE from epicenter
Castro Valley

California, The United States.
II
Weak
57 mi (91 km)
SSE from epicenter
Hayward

California, The United States.
II
Weak
58 mi (93 km)
SSE from epicenter
San Mateo

California, The United States.
II
Weak
58 mi (93 km)
ESE from epicenter
Brentwood

California, The United States.
I
Not felt
59 mi (95 km)
SE from epicenter
Dublin

California, The United States.
II
Weak
60 mi (96 km)
ENE from epicenter
West Sacramento

California, The United States.
II
Weak
62 mi (99 km)
ENE from epicenter
Sacramento

California, The United States.
I
Not felt
62 mi (100 km)
SSE from epicenter
Union City

California, The United States.
I
Not felt
66 mi (106 km)
SSE from epicenter
Fremont

California, The United States.
I
Not felt
81 mi (131 km)
SSE from epicenter
San Jose

California, The United States.
I
Not felt
170 mi (273 km)
ENE from epicenter
Reno

Nevada, The United States.
Cities and Towns around the epicenter of this earthquake.

Earthquake Intensity Map

The intensity in shaking and damage by this earthquake is illustrated through the map below. The highest intensity measured for this earthquake is V.

I Not felt
II Weak
III Weak
IV Light
V Moderate
VI Strong
VII Very Strong
VIII Severe
IX Violent
X Extreme
Earthquake Intensity Map based on Shakemap Data provided by USGS.

4 Aftershocks detected

This main shock was followed by 4 smaller aftershocks. Just 34 mins after this main shock, an earthquake measuring MAG-3.4 was detected 0.4 mi (0.6 km) north-northwest of this earthquake.

In the days before this main shock, 2 smaller foreshocks were detected. A 2.9 magnitude earthquake hit 1 day earlier nearby.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Foreshock M 2.7 1 day earlier
Dec 13, 2025 09:30AM (Los Angeles Time)
1.7 mi (2.7 km)
NNW from Main Shock.
Foreshock M 2.9 1 day earlier
Dec 13, 2025 01:44PM (Los Angeles Time)
56 mi (89 km)
SE from Main Shock.
Main Shock
This Earthquake
M 4.0 Dec 14, 2025 03:30PM
(Los Angeles Time)
-
Aftershock M 3.1 8 mins later
Dec 14, 2025 03:38PM (Los Angeles Time)
0.2 mi (0.4 km)
NNW from Main Shock.
Aftershock M 3.4 34 mins later
Dec 14, 2025 04:04PM (Los Angeles Time)
0.4 mi (0.6 km)
NNW from Main Shock.
Aftershock M 2.6 3 hrs later
Dec 14, 2025 06:01PM (Los Angeles Time)
0.8 mi (1.3 km)
ESE from Main Shock.
Aftershock M 2.5 3 hrs later
Dec 14, 2025 06:03PM (Los Angeles Time)
0.4 mi (0.7 km)
SE from Main Shock.
Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.

More earthquakes coming?

Aftershocks are usually at least 1 order of magnitude less strong than main shocks. The more time passes, the smaller the chance and likely strength of any potential aftershocks.

The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk

Read: How to Stay Safe during an Earthquake (cdc.gov).

Earthquakes like this happen often in the region

Earthquakes of this strength are very common in the region. This is the strongest earthquake to hit since November 27th, 2025, when a 4 magnitude earthquake hit 123 mi (198 km) further south-southeast. An even stronger magnitude 6.4 earthquake struck on December 20th, 2022.

In total, 166 earthquakes with a magnitude of 4 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 22 days.

Sources

Last updated 15/12/25 02:08 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.

  1. US Geographic Society (USGS): Earthquake nc75279971
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20251214_0000368
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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