On Wednesday Morning a Shallow M5.6 Earthquake struck near Ukiah in The United States.

Written by Earthquakelist.org on June 24th, 2026.

A shallow and significant M5.6 earthquake struck under land 15 miles from Ukiah in The United States in the morning of Wednesday June 24th, 2026. Earthquakes like this can cause significant economic damage but are usually unlikely to result on large numbers of fatalities.

Earthquake Summary

The earthquake struck on land in The United States, 15 miles (24 km) north of Ukiah in California. The center of this earthquake had a very shallow depth of 5 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time:	Jun 24, 2026 08:10AM (Los Angeles Time) - Jun 24, 2026 15:10 Universal Time.
Location:	15 mi north of Ukiah, California, The United States. Coordinates 39°21'49"N 123°13'46"W.
Map:	Map of area around epicenter. Click to open in Google Maps.
Magnitude:	MAG 5.6 Detected by 64 stations. Maximum Error Range ±0.043 .
Depth:	5 mi (8 km) A very shallow depth.
Max. Intensity:	VIII Severe On the Modified Mercalli Scale.
Tsunami Risk:	Tsunami very unlikely While this was a shallow earthquake, it appears to have occurred under land with a magnitude not strong enough to cause tsunami's. Always stay cautious - More info here.

Significant economic impact

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 95% likelyhood of between 0 and 1 fatalities.

The USGS classifies the economic impact of this earthquake at level YELLOW (significant). They expect an 33% likelyhood of between 1 and 10 million US Dollars in economic damage and impact, and a 97% chance that the economic impact of this earthquake falls no higher than 1,000 million USD.

Roughly 10 million people exposed to shaking

The USGS has published a report estimating the number of people exposed to this earthquake. Acoording to their analysis, roughly 10 million have been exposed to shaking at an MMI level of II or higher.

An estimated 9,720 people were exposed to level VII. At this level, very strong shaking and likely moderate damage can be expected. The majority of people (roughly 8 million) live in an area exposed to level II, where very weak shaking and no damage is expected.

People	MMI Level	Shaking	Damage
32,910	I	Not noticable	None
7,947,000	II	Very weak	None
1,791,000	III	Weak	Probably none
67,220	IV	Light	Likely none
62,030	V	Moderate	Very light
10,820	VI	Strong	Light
9,720	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 Ukiah in California, The United States. Ukiah is located 15 miles (24 km) north of the epicenter. Ukiah experienced an earthquake intensity (MMI Scale) of roughly V. That level implies moderate shaking and very light damage.

Multiple large cities are in proximity of today's earthquake. San Francisco is located 118 mi to the south and experienced an intensity of II (very weak shaking, no damage). San Jose is located 157 mi to the south-east (intensity unknown, possibly low). Sacramento is located 107 mi to the south-east and experienced an intensity of II (very weak shaking, no damage).

A complete list of nearby places is included below. Estimated intensity data (MMI) sourced from a shake-map published by the US Geographic Survey is shown where available (cities without data probably experienced little impact).

Overview of nearby places

Cities and Towns around the epicenter of this earthquake.
Distance	Place	Intensity (MMI)
15 mi (24 km) S from epicenter	Ukiah California, The United States.	V Moderate
43 mi (69 km) SE from epicenter	Clearlake California, The United States.	IV Light
61 mi (98 km) S from epicenter	Windsor California, The United States.	II Weak
70 mi (112 km) SE from epicenter	Santa Rosa California, The United States.	II Weak
76 mi (123 km) S from epicenter	Rohnert Park California, The United States.	II Weak
78 mi (126 km) E from epicenter	Chico California, The United States.	II Weak
85 mi (136 km) SE from epicenter	Petaluma California, The United States.	III Weak
88 mi (141 km) E from epicenter	Yuba City California, The United States.	II Weak
89 mi (144 km) SE from epicenter	Napa California, The United States.	II Weak
90 mi (145 km) E from epicenter	Paradise California, The United States.	III Weak
91 mi (147 km) SE from epicenter	Woodland California, The United States.	II Weak
94 mi (151 km) SE from epicenter	Novato California, The United States.	III Weak
96 mi (154 km) NE from epicenter	Redding California, The United States.	III Weak
96 mi (155 km) SE from epicenter	Vacaville California, The United States.	II Weak
98 mi (158 km) SE from epicenter	Davis California, The United States.	II Weak
100 mi (161 km) SE from epicenter	Fairfield California, The United States.	II Weak
102 mi (164 km) SE from epicenter	Vallejo California, The United States.	III Weak
103 mi (166 km) S from epicenter	San Rafael California, The United States.	II Weak
106 mi (171 km) SE from epicenter	West Sacramento California, The United States.	II Weak
107 mi (173 km) SE from epicenter	Sacramento California, The United States.	II Weak
109 mi (175 km) E from epicenter	Lincoln California, The United States.	II Weak
109 mi (176 km) SE from epicenter	Richmond California, The United States.	II Weak
110 mi (177 km) SE from epicenter	North Highlands California, The United States.	II Weak
112 mi (180 km) SE from epicenter	Antelope California, The United States.	II Weak
112 mi (181 km) E from epicenter	Roseville California, The United States.	II Weak
112 mi (181 km) SE from epicenter	Arden-Arcade California, The United States.	II Weak
114 mi (183 km) SE from epicenter	Citrus Heights California, The United States.	II Weak
114 mi (183 km) E from epicenter	Rocklin California, The United States.	II Weak
114 mi (184 km) SE from epicenter	Carmichael California, The United States.	II Weak
115 mi (185 km) SE from epicenter	Florin California, The United States.	II Weak
116 mi (186 km) SE from epicenter	Concord California, The United States.	III Weak
116 mi (186 km) SE from epicenter	Berkeley California, The United States.	II Weak
116 mi (187 km) SE from epicenter	Rancho Cordova California, The United States.	II Weak
117 mi (188 km) SE from epicenter	Chinatown California, The United States.	II Weak
117 mi (188 km) SE from epicenter	Laguna California, The United States.	II Weak
117 mi (189 km) SE from epicenter	Pittsburg California, The United States.	III Weak
118 mi (190 km) S from epicenter	San Francisco California, The United States.	II Weak
119 mi (191 km) SE from epicenter	Walnut Creek California, The United States.	III Weak
119 mi (192 km) S from epicenter	Mission District California, The United States.	II Weak
119 mi (192 km) SE from epicenter	Oakland California, The United States.	II Weak
120 mi (193 km) SE from epicenter	Folsom California, The United States.	II Weak
120 mi (193 km) SE from epicenter	Elk Grove California, The United States.	II Weak
121 mi (195 km) SE from epicenter	Antioch California, The United States.	III Weak
122 mi (196 km) S from epicenter	Daly City California, The United States.	II Weak
122 mi (196 km) SE from epicenter	Alameda California, The United States.	II Weak
132 mi (213 km) SE from epicenter	Hayward California, The United States.	II Weak
142 mi (229 km) SE from epicenter	Fremont California, The United States.	II Weak
143 mi (230 km) SE from epicenter	Stockton California, The United States.	III Weak
157 mi (253 km) SE from epicenter	San Jose California, The United States.
170 mi (273 km) SE from epicenter	Modesto California, The United States.	II Weak
183 mi (294 km) E from epicenter	Reno Nevada, The United States.

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is VII. The map below shows in which areas this earthquake was the most and least impactful. It is based on data from the US Geographic Survey.

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.

5 Aftershocks detected

This main shock was followed by 5 smaller aftershocks. Just 3 hrs after this main shock, an earthquake measuring MAG-2.8 was detected 2.4 mi (4 km) south-east of this earthquake.

In the days before this main shock, 2 smaller foreshocks were detected. Nearby this earthquake a foreshock struck 3 days earlier. It measured a magnitude of 2.8

Overview of foreshocks and aftershocks

Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.
Classification	Magnitude	When	Where
Foreshock	M 2.8	3 days earlier Jun 21, 2026 05:27PM (Los Angeles Time)	47 mi (76 km) SE from Main Shock.
Foreshock	M 2.6	2 days earlier Jun 22, 2026 05:50PM (Los Angeles Time)	41 mi (66 km) SE from Main Shock.
Main Shock This Earthquake	M 5.6	Jun 24, 2026 08:10AM (Los Angeles Time)	-
Aftershock	M 2.5	7 mins later Jun 24, 2026 08:17AM (Los Angeles Time)	0.6 mi (0.9 km) E from Main Shock.
Aftershock	M 2.7	56 mins later Jun 24, 2026 09:06AM (Los Angeles Time)	1.6 mi (2.6 km) W from Main Shock.
Aftershock	M 2.6	56 mins later Jun 24, 2026 09:06AM (Los Angeles Time)	0.7 mi (1.1 km) NE from Main Shock.
Aftershock	M 2.8	3 hrs later Jun 24, 2026 10:47AM (Los Angeles Time)	2.4 mi (4 km) SE from Main Shock.
Aftershock	M 2.7	3 hrs later Jun 24, 2026 10:58AM (Los Angeles Time)	0.7 mi (1.1 km) NE from Main Shock.

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

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 are common in the region

Earthquakes of this strength occur quite regularly in the region. This is the strongest earthquake to hit since December 5th, 2024, when a 7 magnitude earthquake hit 118 mi (190 km) further northwest. That was also the heaviest earthquake to hit the region in the past 10 years.

In total, 7 earthquakes with a magnitude of 5.6 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 year.

Tsunami very unlikely

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.

While MAG-6.5+ earthquakes may cause tsunami's, it appears that the epicenter of this earthquake hit under land. In addition, the reported depth is deeper than 100km, making the risk of a tsunami even less likely. However always stay cautious and monitor advice from local authorities.

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 5.6. Earthquakes of this strength are unlikely to trigger a tsunami.	This earthquake occurred at a depth of of 5 mi (8 km). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 24/06/26 18:58 (). 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.