Contact | RSS | EN | DE | EL | ES | FR | IT | RU

Mag. 4.1 earthquake - North Pacific Ocean, 91 km south of Salina Cruz, Oaxaca, Mexico, on Tuesday, Nov 28, 2023, at 03:55 am (GMT -6) -

A moderate magnitude 4.1 earthquake occurred under the sea 83 km (52 mi) from  Mexico in the early morning of Tuesday, Nov 28, 2023 at 3.55 am local time (GMT -6). The quake had a very shallow depth of 16.1 km (10 mi) and was not felt (or at least not reported so).

Mag. 4.1 earthquake - North Pacific Ocean, 91 km south of Salina Cruz, Oaxaca, Mexico, on Tuesday, Nov 28, 2023, at 03:55 am (GMT -6) Mag. 4.1 earthquake - North Pacific Ocean, 91 km south of Salina Cruz, Oaxaca, Mexico, on Tuesday, Nov 28, 2023, at 03:55 am (GMT -6)

Moderate magnitude 4.1 earthquake at 16 km depth

28 Nov 14:07 UTC: First to report: SSN after 4 hours.

Earthquake details

Date & timeNov 28, 2023 09:55:09 UTC -
Local time at epicenterTuesday, Nov 28, 2023, at 03:55 am (GMT -6)
StatusPreliminary (automatic detection)
Magnitude4.1
Depth16.1 km
Epicenter latitude / longitude15.41°N / 94.9°W Mexico
Seismic antipode15.41°S / 85.1°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Estimated seismic energy released8.9 x 1010 joules (24.8 megawatt hours, equivalent to 21.3 tons of TNT) | about seismic energy
Interactive map
[smaller] [bigger]

Nearby places

The closest larger town where the quake might have been felt is Salina Cruz, a town with 77,000 inhabitants in Mexico, in 91 km (56 mi) distance north 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. In the capital of  Mexico, Mexico, 633 km (393 mi) away from the epicenter, the earthquake could not be felt.
The following table shows some of the places that might have been affected (or not) by the shaking.
Distance Place Max. shaking intensity(*) Region Country
86 km (54 mi)
NW of epicenter
Concepcion Bamba
(pop: 312)
II: Very weak
Santo Domingo Tehuantepec, Oaxaca
89 km (56 mi)
N of epicenter
San Mateo del Mar
(pop: 5,730)
II: Very weak
Oaxaca
91 km (56 mi)
N of epicenter
Salina Cruz
(pop: 76,600)
II: Very weak
Oaxaca
96 km (60 mi)
N of epicenter
San Francisco del Mar Viejo
(pop: 4,030)
II: Very weak
San Francisco del Mar, Oaxaca
101 km (63 mi)
NW of epicenter
Rincon Moreno
(pop: 1,020)
II: Very weak
Santo Domingo Tehuantepec, Oaxaca
103 km (64 mi)
N of epicenter
San Dionisio del Mar
(pop: 3,140)
II: Very weak
Oaxaca
103 km (64 mi)
N of epicenter
Santa Rosa
(pop: 2,490)
II: Very weak
San Blas Atempa, Oaxaca
105 km (65 mi)
NW of epicenter
Santiago Astata
(pop: 2,210)
II: Very weak
Oaxaca
108 km (67 mi)
N of epicenter
Santo Domingo Tehuantepec
(pop: 42,100)
II: Very weak
Oaxaca
108 km (67 mi)
N of epicenter
San Blas Atempa
(pop: 12,000)
II: Very weak
Oaxaca
111 km (69 mi)
N of epicenter
Las Amilpas
(pop: 8,800)
II: Very weak
San Dionisio del Mar, Oaxaca
112 km (70 mi)
NW of epicenter
El Coyul
(pop: 2,200)
II: Very weak
San Pedro Huamelula, Oaxaca
114 km (71 mi)
N of epicenter
San Francisco Ixhuatan
(pop: 5,410)
II: Very weak
San Francisco Ixhuatan, Oaxaca
115 km (71 mi)
N of epicenter
Juchitan de Zaragoza
(pop: 74,800)
II: Very weak
Heroica Ciudad de Juchitan de Zaragoza, Oaxaca
118 km (74 mi)
N of epicenter
Union Hidalgo
(pop: 13,700)
II: Very weak
Oaxaca
123 km (77 mi)
NE of epicenter
Emiliano Zapata
(pop: 3,350)
II: Very weak
Arriaga, Chiapas
125 km (78 mi)
NE of epicenter
Chahuites
(pop: 9,840)
II: Very weak
Oaxaca
127 km (79 mi)
N of epicenter
La Ventosa
(pop: 4,880)
II: Very weak
Heroica Ciudad de Juchitan de Zaragoza, Oaxaca
129 km (80 mi)
NW of epicenter
Santa Maria Jalapa del Marqués
(pop: 9,000)
II: Very weak
Santa Maria Jalapa del Marqués, Oaxaca
129 km (80 mi)
N of epicenter
La Venta
(pop: 2,160)
II: Very weak
Heroica Ciudad de Juchitan de Zaragoza, Oaxaca
130 km (81 mi)
N of epicenter
Ixtepec
(pop: 25,400)
II: Very weak
Oaxaca
132 km (82 mi)
NE of epicenter
Paredon
(pop: 6,130)
II: Very weak
Tonala, Chiapas
133 km (83 mi)
NE of epicenter
Santo Domingo Zanatepec
(pop: 7,250)
II: Very weak
Oaxaca
133 km (83 mi)
NW of epicenter
Magdalena Tequisistlan
(pop: 3,830)
II: Very weak
Magdalena Tequisistlan, Oaxaca
134 km (83 mi)
N of epicenter
La Blanca
(pop: 1,220)
II: Very weak
Santo Domingo Ingenio, Oaxaca
135 km (84 mi)
N of epicenter
Santiago
(pop: 2,550)
II: Very weak
Oaxaca
136 km (85 mi)
NE of epicenter
Espinal
(pop: 7,620)
II: Very weak
Chiapas
138 km (86 mi)
W of epicenter
Crucecita
(pop: 15,100)
II: Very weak
Santa Maria Huatulco, Oaxaca
141 km (88 mi)
NE of epicenter
Arriaga
(pop: 24,400)
II: Very weak
Chiapas
144 km (89 mi)
NW of epicenter
Merced del Potrero
(pop: 2,180)
II: Very weak
San Miguel del Puerto, Oaxaca
144 km (89 mi)
NE of epicenter
Tonala
(pop: 35,300)
II: Very weak
Tonala, Chiapas
147 km (92 mi)
E of epicenter
Manuel Avila Camacho (Ponte Duro)
(pop: 1,780)
II: Very weak
Tonala, Chiapas
147 km (92 mi)
NE of epicenter
Nueva Tenochtitlan (Rizo de Oro)
(pop: 1,640)
II: Very weak
Cintalapa, Chiapas
155 km (97 mi)
NE of epicenter
Tiltepec
(pop: 2,010)
II: Very weak
Jiquipilas, Chiapas
159 km (99 mi)
N of epicenter
Santo Domingo Petapa
(pop: 5,430)
II: Very weak
Oaxaca
159 km (99 mi)
W of epicenter
Huatulco
(pop: 7,410)
II: Very weak
Oaxaca
176 km (110 mi)
NW of epicenter
San Pedro Mixtepec
(pop: 3,820)
II: Very weak
Oaxaca
178 km (111 mi)
NE of epicenter
Lazaro Cardenas
(pop: 3,000)
II: Very weak
Cintalapa, Chiapas
190 km (118 mi)
NE of epicenter
Cintalapa de Figueroa
(pop: 42,500)
II: Very weak
Cintalapa, Chiapas
633 km (393 mi)
NW of epicenter
Mexico
(pop: 12,294,200)
: Not felt
Mexico D.F.
Notes:
(*) Shaking intensity according to the Modified Mercalli Intensity Scale (MMI) and estimated using seismic models.

User-reports for this quake

There are no user reports for this quake yet.

If you felt it, be the first to report it!
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Compare Quake Data

Data for the same earthquake as reported by different agencies

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.
Mag Depth Time GMT
2023-11-28
Epicenter Agency
4.1 16 km
10 mi
09:55:09 Mexico: 91 Km Al SURESTE De SALINA CRUZ, OAX SSN (Servicio Sismológico Nacional)
4.1 16 km
10 mi
09:55:09 Offshore Oaxaca, Mexico
0 km (0 mi) epicenter difference with SSN
EMSC (European-Mediterranean Seismological Centre)

Seismograms

Seismic station: COMITAN (CCIG/MX network) | Distance from quake: 311 km / 193 mi | Show on map | Station Info
Seismic station COMITAN: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.2-10.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
Show more

Aftershocks for this quake

No aftershocks have been recorded so far. When aftershocks are detected, we will update this section.

What are aftershocks?


Larger earthquakes (above magnitude 5 or so) such as this one are usually followed by smaller ones known as aftershocks that occur in the same area during the days, weeks, months or even years after the main shock.
[More info]

What about this quake?


Based on its magnitude, the fault that was active during the quake likely ruptured beneath a surface of approx. 1 km2 (=0 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 2 km (1 mi).
[More info]


Recorded aftershocks, latest first (0 quake)

Date and Time GMTMag
Depth
DistanceRegionDetails
Nov 28, 2023 03:55 am (GMT -6)
14 weeks ago
4.1

16 km
0 km - This quakeNorth Pacific Ocean, 91 km S of Salina Cruz, Oaxaca, Mexico
Main Shock (this quake)
More

Map of aftershocks

Earthquake statistics

Average number of earthquakes

Based on data from the past 10 years and our earthquake archive back to 1900, there are about 9,700 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
  • Mag. 6 or higher: 0.08 quakes per year (or 1 quake every 12.3 years)
  • Mag. 5 or higher: 5.5 quakes per year
  • Mag. 4 or higher: 315 quakes per year (or 26.2 quakes per month)
  • Mag. 3 or higher: 960 quakes per year (or 80 quakes per month)
  • Mag. 2 or higher: 960 quakes per year (or 80 quakes per month)
The area where this quake occurred has a high level of seismic activity. It has had at least 10 quakes above magnitude 6 since 1900, which suggests that larger earthquakes of this size occur infrequently, probably on average approximately every 10 to 15 years.

Number of quakes per year

Previous quakes in the same area of this earthquake

Map of earlier quakes in the area of this quake

[smaller] [bigger]

Map to embed or share

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version

Support us - Help us upgrade our services!

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 or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Design upgrade
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Sources: VolcanoDiscovery / VolcanoAdventures and other sources as noted.
Use of material: Most text and images on our websites are owned by us. Re-use is generally not permitted without authorization. Contact us for licensing rights.
Volcanoes & Earthquakes
VolcanoDiscovery Home
Volcanoes | Earthquakes | Photos | Volcano News | App
Adventure & Study Travel
Tours to Volcanoes and Volcanic Areas: walking tours, photo tours, study tours
Tours & Dates | FAQ | About us
Get our newsletter!
Company info
Contact | Legal info | Terms & conditions
Follow us
Follow us on facebook Follow us on Instagram Follow us on Twitter Visit our Youtube channel
EN | DE | EL | ES | FR | IT | RU
VolcanoDiscovery GmbH, Germany, Reg. nr.: HRB 103744, EU Tax Id: DE 297 465 123 owned and created by
Dr. Tom Pfeiffer, volcanologist, volcano photographer, tour organizer member of
IAVCEI
Volcanological Society
Ecotourism Greece
Insured by R+V
VolcanoDiscovery © 2004- All Rights Reserved | Privacy - cookie settings