Earthquake with magnitude of Md 1.1 on date 17-04-2020 and time 20:31:01 (Italy) in region 5 km SE Pozzuoli (NA)

A magnitude Md 1.1 earthquake occured in region: 5 km SE Pozzuoli (NA), on

  • 17-04-2020 18:31:01 (UTC)
  • 17-04-2020 20:31:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.82, 14.13 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 5 81661 81661
Bacoli NA 5 26560 108221
Quarto NA 7 40930 149151
Monte di Procida NA 7 12886 162037
Marano di Napoli NA 10 59874 221911
Napoli NA 10 974074 1195985
Calvizzano NA 11 12329 1208314
Procida NA 11 10530 1218844
Qualiano NA 11 25702 1244546
Mugnano di Napoli NA 12 34828 1279374
Villaricca NA 13 31122 1310496
Giugliano in Campania NA 13 122974 1433470
Melito di Napoli NA 14 37826 1471296
Casavatore NA 15 18661 1489957
Arzano NA 15 34886 1524843
Sant'Antimo NA 15 33905 1558748
Parete CE 16 11442 1570190
Casandrino NA 16 14336 1584526
Casoria NA 16 77642 1662168
San Giorgio a Cremano NA 17 45557 1707725
Grumo Nevano NA 17 18061 1725786
Lusciano CE 17 15362 1741148
Trentola-Ducenta CE 18 19429 1760577
Cesa CE 18 8841 1769418
Frattamaggiore NA 18 30329 1799747
Ercolano NA 18 53709 1853456
Aversa CE 18 53047 1906503
Ischia NA 18 19915 1926418
Sant'Arpino CE 18 14307 1940725
Portici NA 19 55274 1995999
Afragola NA 19 65057 2061056
Casapesenna CE 19 6987 2068043
San Marcellino CE 19 14155 2082198
Frattaminore NA 19 16208 2098406
Succivo CE 19 8457 2106863
Volla NA 19 23755 2130618
Cercola NA 20 18267 2148885
Crispano NA 20 12354 2161239
Cardito NA 20 22755 2183994
Frignano CE 20 9008 2193002
Gricignano di Aversa CE 20 11881 2204883
Orta di Atella CE 20 27191 2232074
San Cipriano d'Aversa CE 20 13653 2245727

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km SE of Pozzuoli (81661 inhabitants)
10 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)
18 Km W of Ercolano (53709 inhabitants)
18 Km SW of Aversa (53047 inhabitants)
19 Km W of Portici (55274 inhabitants)
19 Km SW of Afragola (65057 inhabitants)
20 Km W of Torre del Greco (86275 inhabitants)
25 Km SW of Acerra (59573 inhabitants)
32 Km W of Castellammare di Stabia (66466 inhabitants)
33 Km SW of Caserta (76326 inhabitants)
34 Km W of Scafati (50787 inhabitants)
50 Km W of Cava de' Tirreni (53659 inhabitants)
55 Km W of Salerno (135261 inhabitants)
57 Km W of Avellino (54857 inhabitants)
65 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 1.1 2020-04-17
18:31:01
40.82 14.13 1 2020-04-21
09:33:00
Sala Operativa INGV_OV (Napoli) 78440241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-17 18:31:01
Latitude 40.82
Longitude 14.13
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 78440241

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) 92
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) 0.05
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 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 78440241
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-04-21 09:33:00
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