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Mag. 4.5 earthquake - 50 km northwest of Puerto Escondido, Oaxaca, Mexico, on Wednesday, Nov 8, 2023, at 03:52 am (Mexico City time) -

A moderate magnitude 4.5 earthquake hit 50 km (31 mi) away from Puerto Escondido, Oaxaca,  Mexico, in the early morning of Wednesday, Nov 8, 2023 at 3.52 am local time (America/Mexico City GMT -6). The quake had a very shallow depth of 11.1 km (7 mi) and was not felt (or at least not reported so).

Mag. 4.5 earthquake - 50 km northwest of Puerto Escondido, Oaxaca, Mexico, on Wednesday, Nov 8, 2023, at 03:52 am (Mexico City time) Mag. 4.5 earthquake - 50 km northwest of Puerto Escondido, Oaxaca, Mexico, on Wednesday, Nov 8, 2023, at 03:52 am (Mexico City time)

Moderate magnitude 4.5 earthquake at 11 km depth

8 Nov 10:28 UTC: First to report: SSN after 36 minutes.

Earthquake details

Date & timeNov 8, 2023 09:52:09 UTC -
Local time at epicenterWednesday, Nov 8, 2023, at 03:52 am (America/Mexico City GMT -6)
StatusPreliminary (automatic detection)
Magnitude4.5
Depth11.1 km
Epicenter latitude / longitude16.14°N / 97.45°W Villa de Tututepec de Melchor Ocampo, Oaxaca, Mexico
Seismic antipode16.14°S / 82.55°E
Shaking intensityLight shaking near epicenter
Felt0 reports
Primary data sourceSSN (Servicio Sismológico Nacional)
Weather at epicenter at time of quakeBroken Clouds 20.2°C (68 F), humidity: 92%, wind: 2 m/s (3 kts) from NNE
Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | about seismic energy
Interactive map
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Nearby places

The closest larger town where the quake might have been felt is Santiago Pinotepa Nacional, a town with 30,000 inhabitants in Mexico, in 68 km (42 mi) distance west of the epicenter. People likely experienced weak shaking there. Many smaller towns and villages are located closer to the epicenter and might have experienced stronger shaking. In the capital of  Mexico, Mexico, 407 km (253 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
2 km (1 mi)
SE of epicenter
Santiago Jocotepec
(pop: 1,770)
V: Moderate
Villa de Tututepec de Melchor Ocampo, Oaxaca
10 km (6 mi)
NW of epicenter
Santa Ana Tututepec
(pop: 609)
IV: Light
Villa de Tututepec de Melchor Ocampo, Oaxaca
14 km (9 mi)
S of epicenter
Rio Grande
(pop: 12,900)
IV: Light
Villa de Tututepec de Melchor Ocampo, Oaxaca
15 km (10 mi)
NE of epicenter
San Miguel Panixtlahuaca
(pop: 5,680)
IV: Light
Oaxaca
16 km (10 mi)
W of epicenter
La Luz
(pop: 2,440)
IV: Light
Villa de Tututepec de Melchor Ocampo, Oaxaca
18 km (11 mi)
N of epicenter
Tepenixtlahuaca
(pop: 2,550)
IV: Light
Tataltepec de Valdés, Oaxaca
22 km (13 mi)
NE of epicenter
Santiago Yaitepec
(pop: 4,120)
IV: Light
Oaxaca
33 km (20 mi)
E of epicenter
Santos Reyes Nopala
(pop: 5,200)
IV: Light
Oaxaca
43 km (27 mi)
W of epicenter
Santiago
(pop: 10,100)
III: Weak
Oaxaca
44 km (27 mi)
N of epicenter
Quinicuena
(pop: 1,050)
III: Weak
Santa Cruz Zenzontepec, Oaxaca
48 km (30 mi)
NW of epicenter
San Agustin Chayuco
(pop: 2,000)
III: Weak
San Agustin Chayuco, Oaxaca
48 km (30 mi)
NE of epicenter
Honduras
(pop: 1,090)
III: Weak
San Jeronimo Coatlan, Oaxaca
50 km (31 mi)
SE of epicenter
Puerto Escondido
(pop: 25,900)
III: Weak
San Pedro Mixtepec -Dto. 22 -, Oaxaca
52 km (32 mi)
W of epicenter
Jose Maria Morelos
(pop: 2,330)
III: Weak
Santa Maria Huazolotitlan, Oaxaca
52 km (32 mi)
NW of epicenter
Santiago Ixtayutla
(pop: 1,900)
III: Weak
Oaxaca
54 km (34 mi)
NW of epicenter
San Andrés Huaxpaltepec
(pop: 4,150)
III: Weak
Oaxaca
56 km (35 mi)
NE of epicenter
Santo Domingo Teojomulco
(pop: 2,090)
III: Weak
Oaxaca
56 km (35 mi)
N of epicenter
Santiago
(pop: 1,260)
III: Weak
Oaxaca
59 km (36 mi)
N of epicenter
Zaniza
(pop: 1,340)
III: Weak
Oaxaca
61 km (38 mi)
SE of epicenter
Santa Maria Colotepec
(pop: 1,370)
III: Weak
Santa Maria Colotepec, Oaxaca
65 km (40 mi)
NW of epicenter
Pinotepa de Don Luis
(pop: 5,690)
III: Weak
Oaxaca
66 km (41 mi)
NE of epicenter
Sola de Vega
(pop: 1,850)
III: Weak
Oaxaca
68 km (42 mi)
W of epicenter
Santiago Pinotepa Nacional
(pop: 29,600)
III: Weak
Oaxaca
68 km (43 mi)
NW of epicenter
La Reforma
(pop: 1,360)
III: Weak
Oaxaca
74 km (46 mi)
E of epicenter
San Francisco Coatlan
(pop: 1,570)
III: Weak
San Pablo Coatlan, Oaxaca
79 km (49 mi)
NE of epicenter
Santiago Yogana
(pop: 1,280)
III: Weak
Yogana, Oaxaca
80 km (49 mi)
NW of epicenter
San Antonio Tepetlapa
(pop: 2,620)
III: Weak
Oaxaca
80 km (50 mi)
W of epicenter
Corralero
(pop: 1,740)
III: Weak
Santiago Pinotepa Nacional, Oaxaca
80 km (50 mi)
NE of epicenter
Santa Maria Lachixio
(pop: 1,090)
III: Weak
Santa Maria Lachixio, Oaxaca
81 km (51 mi)
E of epicenter
Santa Ana
(pop: 1,910)
III: Weak
Oaxaca
82 km (51 mi)
NW of epicenter
San Juan Cabeza de Rio
(pop: 1,590)
III: Weak
Santa Maria Zacatepec, Oaxaca
86 km (53 mi)
SE of epicenter
San Francisco Cozoaltepec
(pop: 2,120)
III: Weak
Santa Maria Tonameca, Oaxaca
89 km (55 mi)
NE of epicenter
Ayoquezco de Aldama
(pop: 3,830)
III: Weak
Oaxaca
89 km (55 mi)
NW of epicenter
San Pedro Amuzgos
(pop: 4,930)
III: Weak
Oaxaca
90 km (56 mi)
NE of epicenter
Ejutla de Crespo
(pop: 9,750)
III: Weak
Oaxaca
90 km (56 mi)
NW of epicenter
Zacatepec
(pop: 4,850)
III: Weak
Oaxaca
129 km (80 mi)
NE of epicenter
Oaxaca
(pop: 255,000)
II: Very weak
Oaxaca
407 km (253 mi)
NW of epicenter
Mexico
(pop: 12,294,200)
I: 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
2023-11-8
Epicenter Agency
4.5 11 km
6.9 mi
09:52:09 Mexico: 14 Km Al NORTE De RIO GRANDE, OAX SSN (Servicio Sismológico Nacional)

Seismograms

Seismic station: TLAPA (TLIG/MX network) | Distance from quake: 198 km / 123 mi | Show on map | Station Info
Seismic station TLAPA: 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

So far, only one aftershock has been recorded. It hit 3 days after the mainshock in 1.1 km (0.7 mi) distance. When more 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. 3 km2 (=1 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 3 km (2 mi).
[More info]


Recorded aftershocks, latest first (1 quake)

Date and Time GMTMag
Depth
DistanceRegionDetails
Nov 11, 2023 03:29 am (Mexico City)
16 weeks ago
3 days after main shock
3.3

2.4 km
1.1 km (0.7 mi)
E of main shock
49 km NW of Puerto Escondido, Oaxaca, MexicoMore
Nov 8, 2023 03:52 am (Mexico City)
17 weeks ago
4.5

11 km
0 km - This quake50 km NW of Puerto Escondido, 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 16,000 quakes on average per year in the area near the epicenter of this quake (within 100 km/61 mi):
  • Mag. 7 or higher: 0.09 quakes per year (or 1 quake every 11.2 years)
  • Mag. 6 or higher: 0.15 quakes per year (or 1 quake every 6.5 years)
  • Mag. 5 or higher: 1.68 quakes per year
  • Mag. 4 or higher: 115 quakes per year (or 9.6 quakes per month)
  • Mag. 3 or higher: 1,500 quakes per year (or 4.1 quakes per day)
  • Mag. 2 or higher: 1,500 quakes per year (or 4.2 quakes per day)
The area where this quake occurred has a very high level of seismic activity. It has had at least 11 quakes above magnitude 7 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

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Map to embed or share

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