Earthquake with magnitude of Md 1.1 on date 11-07-2020 and time 23:22:37 (Italy) in region 5 km E Pozzuoli (NA)

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

  • 11-07-2020 21:22:37 (UTC)
  • 11-07-2020 23:22:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.83, 14.15 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
Quarto NA 5 40930 122591
Bacoli NA 7 26560 149151
Marano di Napoli NA 8 59874 209025
Napoli NA 9 974074 1183099
Monte di Procida NA 9 12886 1195985
Calvizzano NA 9 12329 1208314
Qualiano NA 10 25702 1234016
Mugnano di Napoli NA 10 34828 1268844
Villaricca NA 11 31122 1299966
Giugliano in Campania NA 12 122974 1422940
Melito di Napoli NA 13 37826 1460766
Procida NA 13 10530 1471296
Casavatore NA 13 18661 1489957
Arzano NA 14 34886 1524843
Sant'Antimo NA 14 33905 1558748
Parete CE 14 11442 1570190
Casandrino NA 15 14336 1584526
Casoria NA 15 77642 1662168
Grumo Nevano NA 15 18061 1680229
San Giorgio a Cremano NA 16 45557 1725786
Lusciano CE 16 15362 1741148
Frattamaggiore NA 16 30329 1771477
Cesa CE 16 8841 1780318
Trentola-Ducenta CE 16 19429 1799747
Aversa CE 17 53047 1852794
Sant'Arpino CE 17 14307 1867101
Ercolano NA 17 53709 1920810
Afragola NA 17 65057 1985867
Frattaminore NA 17 16208 2002075
Portici NA 17 55274 2057349
Succivo CE 17 8457 2065806
Volla NA 18 23755 2089561
San Marcellino CE 18 14155 2103716
Casapesenna CE 18 6987 2110703
Crispano NA 18 12354 2123057
Cardito NA 18 22755 2145812
Cercola NA 18 18267 2164079
Orta di Atella CE 18 27191 2191270
Gricignano di Aversa CE 18 11881 2203151
Frignano CE 19 9008 2212159
Carinaro CE 19 7181 2219340
San Sebastiano al Vesuvio NA 19 9196 2228536
Teverola CE 19 14291 2242827
Torre del Greco NA 19 86275 2329102
Villa di Briano CE 19 7087 2336189
San Cipriano d'Aversa CE 19 13653 2349842
Caivano NA 19 37879 2387721
Massa di Somma NA 19 5444 2393165
Casalnuovo di Napoli NA 19 49855 2443020
Pollena Trocchia NA 20 13562 2456582
Casaluce CE 20 10078 2466660
Casal di Principe CE 20 21389 2488049

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Pozzuoli (81661 inhabitants)
8 Km SW of Marano di Napoli (59874 inhabitants)
9 Km W of Napoli (974074 inhabitants)
12 Km SW of Giugliano in Campania (122974 inhabitants)
15 Km SW of Casoria (77642 inhabitants)
17 Km S of Aversa (53047 inhabitants)
17 Km W of Ercolano (53709 inhabitants)
17 Km SW of Afragola (65057 inhabitants)
17 Km W of Portici (55274 inhabitants)
19 Km W of Torre del Greco (86275 inhabitants)
23 Km SW of Acerra (59573 inhabitants)
31 Km SW of Caserta (76326 inhabitants)
32 Km W of Castellammare di Stabia (66466 inhabitants)
33 Km W of Scafati (50787 inhabitants)
49 Km W of Cava de' Tirreni (53659 inhabitants)
54 Km W of Salerno (135261 inhabitants)
55 Km W of Avellino (54857 inhabitants)
63 Km SW of Benevento (60091 inhabitants)
75 Km W of Battipaglia (50786 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
Md 1.1 2020-07-11
21:22:37
40.83 14.15 1 2020-07-11
21:40:34
Sala Operativa INGV_OV (Napoli) 80963141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-11 21:22:37
Latitude 40.83
Longitude 14.15
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 80963141

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) 200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
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) 0.07
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 80963141
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-07-11 21:40:34
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