Written by on . Last updated June 12th, 2024.

Under land 27 miles from Santa Rosa in The United States, a shallow Magnitude 4.5 earthquake occurred in the early afternoon of Saturday June 8th, 2024. Around 6.9 million people have been exposed to shaking.

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Earthquake Summary

The earthquake struck on land in The United States, 27 miles (43 km) north-northwest of Santa Rosa in California. The center of this earthquake had a very shallow depth of 2 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Jun 8, 2024 12:34PM (Los Angeles Time)
- Jun 8, 2024 19:34 Universal Time.
Location: 27 mi NNW of Santa Rosa, California, The United States.
Coordinates 38°48'50"N 122°49'19"W.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 4.5
Detected by 36 stations. Maximum Error Range ±0.2 .
Depth: 2 mi (4 km)
A very shallow depth.
Max. Intensity:
V
Moderate

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.

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 6.9 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 6.9 million have been exposed to shaking at an MMI level of II or higher.

The highest earthquake impact level for this earthquake is IV, which corresponds with light shaking and likely no damage. Roughly 4,650 people are expected to be exposed to this level. Intensity level II was experienced by a large group of people (around 6.6 million). In their region, very weak shaking and no damage can be expected.

People MMI Level Shaking Damage
6,430,000
I
Not noticable None
6,641,000
II
Very weak None
276,500
III
Weak Probably none
4,650
IV
Light Likely none
0
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 Clearlake in California, The United States. Clearlake is located 14 miles (23 km) southwest of the epicenter. The intensity of shaking and damage in Clearlake is estimated to be around level III on the Modified Mercalli Intensity scale (weak shaking, probably no damage).

Major cities near this earthquake: San Francisco is located 75 mi to the south-southeast and experienced an intensity of II (very weak shaking, no damage). San Jose is located 114 mi to the south-southeast and experienced an intensity of I (not noticeable, no damage). Sacramento is located 73 mi to the east-southeast 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

Distance Place Intensity (MMI)
14 mi (23 km)
NE from epicenter
Clearlake

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

California, The United States.
III
Weak
27 mi (43 km)
SSE from epicenter
Santa Rosa

California, The United States.
II
Weak
31 mi (50 km)
NW from epicenter
Ukiah

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

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

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

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

California, The United States.
I
Not felt
53 mi (86 km)
SE from epicenter
American Canyon

California, The United States.
II
Weak
55 mi (89 km)
SE from epicenter
Vacaville

California, The United States.
II
Weak
57 mi (92 km)
E from epicenter
Woodland

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

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

California, The United States.
I
Not felt
58 mi (93 km)
SE from epicenter
Suisun

California, The United States.
II
Weak
60 mi (96 km)
ESE from epicenter
Dixon

California, The United States.
II
Weak
60 mi (97 km)
SSE from epicenter
San Rafael

California, The United States.
I
Not felt
62 mi (99 km)
ESE from epicenter
Davis

California, The United States.
II
Weak
62 mi (100 km)
SSE from epicenter
Hercules

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

California, The United States.
II
Weak
68 mi (110 km)
ENE from epicenter
Yuba City

California, The United States.
II
Weak
71 mi (115 km)
ESE from epicenter
West Sacramento

California, The United States.
II
Weak
71 mi (115 km)
SSE from epicenter
Berkeley

California, The United States.
I
Not felt
72 mi (116 km)
SE from epicenter
Concord

California, The United States.
II
Weak
73 mi (118 km)
ESE from epicenter
Sacramento

California, The United States.
II
Weak
74 mi (119 km)
SSE from epicenter
Chinatown

California, The United States.
I
Not felt
75 mi (120 km)
SE from epicenter
Pittsburg

California, The United States.
I
Not felt
75 mi (121 km)
SE from epicenter
Walnut Creek

California, The United States.
I
Not felt
75 mi (121 km)
SSE from epicenter
San Francisco

California, The United States.
II
Weak
76 mi (122 km)
SSE from epicenter
Oakland

California, The United States.
I
Not felt
78 mi (126 km)
SSE from epicenter
Alameda

California, The United States.
I
Not felt
78 mi (126 km)
SE from epicenter
Antioch

California, The United States.
I
Not felt
79 mi (127 km)
E from epicenter
Arden-Arcade

California, The United States.
II
Weak
79 mi (127 km)
SSE from epicenter
Daly City

California, The United States.
I
Not felt
81 mi (131 km)
E from epicenter
Carmichael

California, The United States.
I
Not felt
82 mi (132 km)
NE from epicenter
Chico

California, The United States.
II
Weak
83 mi (133 km)
E from epicenter
Roseville

California, The United States.
II
Weak
83 mi (134 km)
E from epicenter
Rancho Cordova

California, The United States.
I
Not felt
83 mi (134 km)
E from epicenter
Citrus Heights

California, The United States.
I
Not felt
83 mi (134 km)
SSE from epicenter
San Leandro

California, The United States.
I
Not felt
83 mi (134 km)
ESE from epicenter
Elk Grove

California, The United States.
I
Not felt
83 mi (134 km)
SSE from epicenter
South San Francisco

California, The United States.
I
Not felt
85 mi (137 km)
SSE from epicenter
San Ramon

California, The United States.
I
Not felt
89 mi (143 km)
SSE from epicenter
Hayward

California, The United States.
I
Not felt
89 mi (144 km)
E from epicenter
Folsom

California, The United States.
II
Weak
91 mi (146 km)
SSE from epicenter
San Mateo

California, The United States.
I
Not felt
97 mi (156 km)
SE from epicenter
Livermore

California, The United States.
I
Not felt
98 mi (158 km)
SSE from epicenter
Fremont

California, The United States.
I
Not felt
102 mi (164 km)
SE from epicenter
Stockton

California, The United States.
I
Not felt
109 mi (175 km)
SSE from epicenter
Sunnyvale

California, The United States.
I
Not felt
111 mi (179 km)
SSE from epicenter
Santa Clara

California, The United States.
I
Not felt
114 mi (183 km)
SSE from epicenter
San Jose

California, The United States.
I
Not felt
168 mi (271 km)
ENE from epicenter
Reno

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

Earthquake Intensity Map

The maximum intensity (MMI Scale) caused by this earthquake is V. 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.

Aftershocks detected

After this earthquake struck, 1 smaller aftershock occurred. At a distance of 0.8 mi (1.3 km) south of this earthquake, an aftershock struck 1 min later. It measured a magnitude of 2.9

In the days before this main shock, 2 smaller foreshocks were detected. A 2.7 magnitude earthquake hit 17 hrs earlier nearby.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Foreshock M 2.6 2 days earlier
Jun 7, 2024 12:17AM (Los Angeles Time)
4 mi (7 km)
ENE from Main Shock.
Foreshock M 2.7 17 hrs earlier
Jun 7, 2024 07:36PM (Los Angeles Time)
15 mi (25 km)
S from Main Shock.
Main Shock
This Earthquake
M 4.5 Jun 8, 2024 12:34PM
(Los Angeles Time)
-
Aftershock M 2.9 1 min later
Jun 8, 2024 12:35PM (Los Angeles Time)
0.8 mi (1.3 km)
S 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?

Earthquakes can create aftershocks. These are generally at least 1 magnitude lower than any main shock, and as time passes the chance and strength of aftershocks decreases.

In only six percent of cases, significant earthquakes are followed by a larger main shock, making the current earthquake a foreshock. While the chance of this happening is not so large, it is adviced to maintain cautiousness in the hours and days following a major earthquake.

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 February 2nd, 2024, when a 4.9 magnitude earthquake hit 177 mi (285 km) further northwest. An even stronger magnitude 6.4 earthquake struck on December 20th, 2022.

In total, 56 earthquakes with a magnitude of 4.5 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 2 months.

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 4.5. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 2 mi (4 km). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 12/06/24 18:38 (). 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 nc75017972
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240608_0000199
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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