Earthquake with magnitude of Md 1.1 on date 21-02-2024 and time 20:37:44 (Italy) in region Campi Flegrei

A magnitude Md 1.1 earthquake occured in region: Campi Flegrei, on

  • 21-02-2024 19:37:44 (UTC)
  • 21-02-2024 20:37:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.8030, 14.1440 at 3 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 6 26560 26560
Pozzuoli NA 7 81661 108221
Monte di Procida NA 8 12886 121107
Quarto NA 8 40930 162037
Napoli NA 10 974074 1136111
Procida NA 11 10530 1146641
Marano di Napoli NA 11 59874 1206515
Calvizzano NA 12 12329 1218844
Mugnano di Napoli NA 13 34828 1253672
Qualiano NA 13 25702 1279374
Villaricca NA 14 31122 1310496
Giugliano in Campania NA 15 122974 1433470
Casavatore NA 16 18661 1452131
Melito di Napoli NA 16 37826 1489957
Arzano NA 16 34886 1524843
San Giorgio a Cremano NA 16 45557 1570400
Sant'Antimo NA 17 33905 1604305
Casoria NA 17 77642 1681947
Ercolano NA 17 53709 1735656
Parete CE 17 11442 1747098
Casandrino NA 17 14336 1761434
Portici NA 18 55274 1816708
Grumo Nevano NA 18 18061 1834769
Ischia NA 18 19915 1854684
Torre del Greco NA 19 86275 1940959
Frattamaggiore NA 19 30329 1971288
Lusciano CE 19 15362 1986650
Volla NA 19 23755 2010405
Cercola NA 19 18267 2028672
Cesa CE 19 8841 2037513
Afragola NA 19 65057 2102570
Trentola-Ducenta CE 20 19429 2121999
Sant'Arpino CE 20 14307 2136306
San Sebastiano al Vesuvio NA 20 9196 2145502
Aversa CE 20 53047 2198549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SE of Pozzuoli (81661 inhabitants)
10 Km W of Napoli (974074 inhabitants)
11 Km SW of Marano di Napoli (59874 inhabitants)
15 Km SW of Giugliano in Campania (122974 inhabitants)
17 Km SW of Casoria (77642 inhabitants)
17 Km W of Ercolano (53709 inhabitants)
18 Km W of Portici (55274 inhabitants)
19 Km W of Torre del Greco (86275 inhabitants)
19 Km SW of Afragola (65057 inhabitants)
20 Km S of Aversa (53047 inhabitants)
25 Km SW of Acerra (59573 inhabitants)
31 Km W of Castellammare di Stabia (66466 inhabitants)
33 Km W of Scafati (50787 inhabitants)
34 Km SW of Caserta (76326 inhabitants)
49 Km W of Cava de' Tirreni (53659 inhabitants)
54 Km W of Salerno (135261 inhabitants)
56 Km W of Avellino (54857 inhabitants)
65 Km SW of Benevento (60091 inhabitants)
74 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 1.1 2024-02-21
19:37:44
40.8033 14.1443 3 2024-02-21
19:48:22
Sala Operativa INGV-OV (Napoli) 125428501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-21 19:37:44
Latitude 40.8033
Longitude 14.1443
Depth (km) 3 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 125428501

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) 157
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) 0.09
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
Magnitude information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 125428501
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2024-02-21 19:48:22
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