Earthquake with magnitude of Md 1.3 on date 21-10-2020 and time 05:26:08 (Italy) in region 4 km E Pozzuoli (NA)

A magnitude Md 1.3 earthquake occured in region: 4 km E Pozzuoli (NA), on

  • 21-10-2020 03:26:08 (UTC)
  • 21-10-2020 05:26:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.84, 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 4 81661 81661
Quarto NA 5 40930 122591
Bacoli NA 6 26560 149151
Monte di Procida NA 8 12886 162037
Marano di Napoli NA 9 59874 221911
Calvizzano NA 9 12329 234240
Qualiano NA 9 25702 259942
Napoli NA 10 974074 1234016
Mugnano di Napoli NA 10 34828 1268844
Villaricca NA 11 31122 1299966
Giugliano in Campania NA 12 122974 1422940
Procida NA 12 10530 1433470
Melito di Napoli NA 13 37826 1471296
Parete CE 14 11442 1482738
Sant'Antimo NA 14 33905 1516643
Casavatore NA 14 18661 1535304
Arzano NA 14 34886 1570190
Casandrino NA 15 14336 1584526
Casoria NA 15 77642 1662168
Grumo Nevano NA 16 18061 1680229
Lusciano CE 16 15362 1695591
Trentola-Ducenta CE 16 19429 1715020
Cesa CE 16 8841 1723861
Aversa CE 16 53047 1776908
Frattamaggiore NA 17 30329 1807237
Sant'Arpino CE 17 14307 1821544
San Giorgio a Cremano NA 17 45557 1867101
Casapesenna CE 17 6987 1874088
San Marcellino CE 17 14155 1888243
Succivo CE 18 8457 1896700
Frattaminore NA 18 16208 1912908
Afragola NA 18 65057 1977965
San Cipriano d'Aversa CE 18 13653 1991618
Frignano CE 18 9008 2000626
Crispano NA 18 12354 2012980
Ercolano NA 18 53709 2066689
Villa di Briano CE 18 7087 2073776
Gricignano di Aversa CE 18 11881 2085657
Carinaro CE 18 7181 2092838
Cardito NA 18 22755 2115593
Orta di Atella CE 19 27191 2142784
Teverola CE 19 14291 2157075
Volla NA 19 23755 2180830
Portici NA 19 55274 2236104
Casal di Principe CE 19 21389 2257493
Casaluce CE 19 10078 2267571
Cercola NA 19 18267 2285838
Ischia NA 19 19915 2305753
Caivano NA 20 37879 2343632
Villa Literno CE 20 11985 2355617

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of Pozzuoli (81661 inhabitants)
9 Km SW of Marano di Napoli (59874 inhabitants)
10 Km W of Napoli (974074 inhabitants)
12 Km SW of Giugliano in Campania (122974 inhabitants)
15 Km SW of Casoria (77642 inhabitants)
16 Km SW of Aversa (53047 inhabitants)
18 Km SW of Afragola (65057 inhabitants)
18 Km W of Ercolano (53709 inhabitants)
19 Km W of Portici (55274 inhabitants)
20 Km W of Torre del Greco (86275 inhabitants)
24 Km SW of Acerra (59573 inhabitants)
31 Km SW of Caserta (76326 inhabitants)
33 Km W of Castellammare di Stabia (66466 inhabitants)
35 Km W of Scafati (50787 inhabitants)
51 Km W of Cava de' Tirreni (53659 inhabitants)
56 Km W of Salerno (135261 inhabitants)
56 Km W of Avellino (54857 inhabitants)
64 Km SW of Benevento (60091 inhabitants)
76 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 1.3 2020-10-21
03:26:08
40.84 14.13 1 2020-10-21
03:33:40
Sala Operativa INGV_OV (Napoli) 83975381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-21 03:26:08
Latitude 40.84
Longitude 14.13
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#WinPick
Event type earthquake
Origin ID 83975381

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
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
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:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 83975381
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-10-21 03:33:40
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