Earthquake with magnitude of Md 2.1 on date 01-10-2023 and time 01:15:29 (UTC) in region Campi Flegrei

A magnitude Md 2.1 earthquake occured in region: Campi Flegrei, on

  • 01-10-2023 01:15:29 (UTC)
  • 01-10-2023 03:15:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8020, 14.1230 at 4 km depth.

The earthquake was located by: Sala Operativa INGV-OV (Napoli).

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bacoli NA 4 26560 26560
Pozzuoli NA 6 81661 108221
Monte di Procida NA 6 12886 121107
Quarto NA 9 40930 162037
Procida NA 9 10530 172567
Napoli NA 12 974074 1146641
Marano di Napoli NA 12 59874 1206515
Calvizzano NA 13 12329 1218844
Qualiano NA 13 25702 1244546
Mugnano di Napoli NA 14 34828 1279374
Villaricca NA 15 31122 1310496
Giugliano in Campania NA 16 122974 1433470
Melito di Napoli NA 17 37826 1471296
Ischia NA 17 19915 1491211
Casavatore NA 17 18661 1509872
Arzano NA 17 34886 1544758
Sant'Antimo NA 18 33905 1578663
Parete CE 18 11442 1590105
San Giorgio a Cremano NA 18 45557 1635662
Casoria NA 18 77642 1713304
Casandrino NA 19 14336 1727640
Ercolano NA 19 53709 1781349
Casamicciola Terme NA 19 8362 1789711
Grumo Nevano NA 19 18061 1807772
Lusciano CE 20 15362 1823134
Portici NA 20 55274 1878408
Trentola-Ducenta CE 20 19429 1897837

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SE of Pozzuoli (81661 inhabitants)
12 Km W of Napoli (974074 inhabitants)
12 Km SW of Marano di Napoli (59874 inhabitants)
16 Km SW of Giugliano in Campania (122974 inhabitants)
18 Km SW of Casoria (77642 inhabitants)
19 Km W of Ercolano (53709 inhabitants)
20 Km W of Portici (55274 inhabitants)
20 Km SW of Aversa (53047 inhabitants)
21 Km W of Torre del Greco (86275 inhabitants)
21 Km SW of Afragola (65057 inhabitants)
26 Km SW of Acerra (59573 inhabitants)
32 Km W of Castellammare di Stabia (66466 inhabitants)
35 Km W of Scafati (50787 inhabitants)
35 Km SW of Caserta (76326 inhabitants)
51 Km W of Cava de' Tirreni (53659 inhabitants)
55 Km W of Salerno (135261 inhabitants)
58 Km W of Avellino (54857 inhabitants)
66 Km SW of Benevento (60091 inhabitants)
76 Km W of Battipaglia (50786 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
Md 2.1 2023-10-01
01:15:29
40.8025 14.1228 4 2023-10-01
01:39:03
Sala Operativa INGV-OV (Napoli) 121633501
Reviewed
Rev200
Md 1.9 2023-10-01
01:15:29
40.8025 14.1228 4 2023-10-01
01:35:02
Sala Operativa INGV-OV (Napoli) 121633491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-01 01:15:29
Latitude 40.8025
Longitude 14.1228
Depth (km) 4 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 121633501

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitudes information

Md:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 121633491
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2023-10-01 01:35:02

Md:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 121633501
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2023-10-01 01:39:03
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download