Earthquake with magnitude of Md 1.2 on date 25-05-2023 and time 09:03:41 (UTC) in region Campi Flegrei

A magnitude Md 1.2 earthquake occured in region: Campi Flegrei, on

  • 25-05-2023 09:03:41 (UTC)
  • 25-05-2023 11:03:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8290, 14.1130 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
Pozzuoli NA 3 81661 81661
Bacoli NA 5 26560 108221
Quarto NA 6 40930 149151
Monte di Procida NA 6 12886 162037
Procida NA 10 10530 172567
Marano di Napoli NA 10 59874 232441
Qualiano NA 11 25702 258143
Calvizzano NA 11 12329 270472
Napoli NA 12 974074 1244546
Mugnano di Napoli NA 12 34828 1279374
Villaricca NA 13 31122 1310496
Giugliano in Campania NA 13 122974 1433470
Melito di Napoli NA 15 37826 1471296
Parete CE 15 11442 1482738
Sant'Antimo NA 16 33905 1516643
Casavatore NA 16 18661 1535304
Arzano NA 16 34886 1570190
Casandrino NA 17 14336 1584526
Lusciano CE 17 15362 1599888
Casoria NA 17 77642 1677530
Trentola-Ducenta CE 17 19429 1696959
Ischia NA 17 19915 1716874
Grumo Nevano NA 17 18061 1734935
Aversa CE 18 53047 1787982
Cesa CE 18 8841 1796823
Casapesenna CE 18 6987 1803810
Frattamaggiore NA 18 30329 1834139
San Marcellino CE 18 14155 1848294
Sant'Arpino CE 19 14307 1862601
San Giorgio a Cremano NA 19 45557 1908158
San Cipriano d'Aversa CE 19 13653 1921811
Succivo CE 19 8457 1930268
Frignano CE 19 9008 1939276
Villa di Briano CE 20 7087 1946363
Casamicciola Terme NA 20 8362 1954725
Frattaminore NA 20 16208 1970933
Afragola NA 20 65057 2035990
Ercolano NA 20 53709 2089699
Gricignano di Aversa CE 20 11881 2101580
Carinaro CE 20 7181 2108761
Casal di Principe CE 20 21389 2130150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km SE of Pozzuoli (81661 inhabitants)
10 Km SW of Marano di Napoli (59874 inhabitants)
12 Km W of Napoli (974074 inhabitants)
13 Km SW of Giugliano in Campania (122974 inhabitants)
17 Km SW of Casoria (77642 inhabitants)
18 Km SW of Aversa (53047 inhabitants)
20 Km SW of Afragola (65057 inhabitants)
20 Km W of Ercolano (53709 inhabitants)
20 Km W of Portici (55274 inhabitants)
22 Km W of Torre del Greco (86275 inhabitants)
25 Km SW of Acerra (59573 inhabitants)
33 Km SW of Caserta (76326 inhabitants)
34 Km W of Castellammare di Stabia (66466 inhabitants)
36 Km W of Scafati (50787 inhabitants)
52 Km W of Cava de' Tirreni (53659 inhabitants)
57 Km W of Salerno (135261 inhabitants)
58 Km W of Avellino (54857 inhabitants)
65 Km SW of Benevento (60091 inhabitants)
77 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 1.2 2023-05-25
09:03:41
40.8288 14.1133 3 2023-05-25
09:13:02
Sala Operativa INGV-OV (Napoli) 117707861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-25 09:03:41
Latitude 40.8288
Longitude 14.1133
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 117707861

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) 146
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) 0.08
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:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 117707861
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2023-05-25 09:13:02
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