Earthquake with magnitude of Md 1.2 on date 20-09-2020 and time 14:44:16 (UTC) in region 4 km SE Pozzuoli (NA)

A magnitude Md 1.2 earthquake occured in region: 4 km SE Pozzuoli (NA), on

  • 20-09-2020 14:44:16 (UTC)
  • 20-09-2020 16:44:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.83, 14.14 at 1 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 4 81661 81661
Bacoli NA 6 26560 108221
Quarto NA 6 40930 149151
Monte di Procida NA 8 12886 162037
Marano di Napoli NA 9 59874 221911
Napoli NA 10 974074 1195985
Calvizzano NA 10 12329 1208314
Qualiano NA 11 25702 1234016
Mugnano di Napoli NA 11 34828 1268844
Procida NA 12 10530 1279374
Villaricca NA 12 31122 1310496
Giugliano in Campania NA 13 122974 1433470
Melito di Napoli NA 14 37826 1471296
Casavatore NA 14 18661 1489957
Sant'Antimo NA 15 33905 1523862
Arzano NA 15 34886 1558748
Parete CE 15 11442 1570190
Casandrino NA 16 14336 1584526
Casoria NA 16 77642 1662168
Grumo Nevano NA 16 18061 1680229
Lusciano CE 17 15362 1695591
San Giorgio a Cremano NA 17 45557 1741148
Trentola-Ducenta CE 17 19429 1760577
Cesa CE 17 8841 1769418
Frattamaggiore NA 17 30329 1799747
Aversa CE 17 53047 1852794
Sant'Arpino CE 18 14307 1867101
Ercolano NA 18 53709 1920810
Afragola NA 18 65057 1985867
San Marcellino CE 18 14155 2000022
Casapesenna CE 18 6987 2007009
Succivo CE 18 8457 2015466
Frattaminore NA 18 16208 2031674
Portici NA 18 55274 2086948
Volla NA 19 23755 2110703
Ischia NA 19 19915 2130618
Crispano NA 19 12354 2142972
Cardito NA 19 22755 2165727
Frignano CE 19 9008 2174735
Cercola NA 19 18267 2193002
Gricignano di Aversa CE 19 11881 2204883
Orta di Atella CE 19 27191 2232074
San Cipriano d'Aversa CE 19 13653 2245727
Villa di Briano CE 19 7087 2252814
Carinaro CE 19 7181 2259995
Teverola CE 20 14291 2274286
Torre del Greco NA 20 86275 2360561

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SE of Pozzuoli (81661 inhabitants)
9 Km SW of Marano di Napoli (59874 inhabitants)
10 Km W of Napoli (974074 inhabitants)
13 Km SW of Giugliano in Campania (122974 inhabitants)
16 Km SW of Casoria (77642 inhabitants)
17 Km SW of Aversa (53047 inhabitants)
18 Km W of Ercolano (53709 inhabitants)
18 Km SW of Afragola (65057 inhabitants)
18 Km W of Portici (55274 inhabitants)
20 Km W of Torre del Greco (86275 inhabitants)
24 Km SW of Acerra (59573 inhabitants)
32 Km SW of Caserta (76326 inhabitants)
33 Km W of Castellammare di Stabia (66466 inhabitants)
34 Km W of Scafati (50787 inhabitants)
50 Km W of Cava de' Tirreni (53659 inhabitants)
55 Km W of Salerno (135261 inhabitants)
56 Km W of Avellino (54857 inhabitants)
64 Km SW of Benevento (60091 inhabitants)
75 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 2020-09-20
14:44:16
40.83 14.14 1 2020-09-21
09:56:04
Sala Operativa INGV_OV (Napoli) 83096951
Reviewed
Rev200
Md 1.2 2020-09-20
14:44:16
40.83 14.14 1 2020-09-20
16:06:27
Sala Operativa INGV_OV (Napoli) 83068541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 14:44:16
Latitude 40.83
Longitude 14.14
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#WinPick
Event type earthquake
Origin ID 83096951

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) 100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
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) 0.02
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:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 83068541
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-09-20 16:06:27

Md:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 83096951
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-09-21 09:56:04
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download