Earthquake with magnitude of Md 1.1 on date 10-09-2020 and time 03:48:57 (Italy) in region Ischia e costa Flegrea (Napoli)

A magnitude Md 1.1 earthquake occured in region: Ischia e costa Flegrea (Napoli), on

  • 10-09-2020 01:48:57 (UTC)
  • 10-09-2020 03:48:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.82, 14.12 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
Bacoli NA 4 26560 26560
Pozzuoli NA 4 81661 108221
Monte di Procida NA 6 12886 121107
Quarto NA 7 40930 162037
Procida NA 10 10530 172567
Marano di Napoli NA 11 59874 232441
Napoli NA 11 974074 1206515
Calvizzano NA 12 12329 1218844
Qualiano NA 12 25702 1244546
Mugnano di Napoli NA 13 34828 1279374
Villaricca NA 13 31122 1310496
Giugliano in Campania NA 14 122974 1433470
Melito di Napoli NA 15 37826 1471296
Casavatore NA 16 18661 1489957
Parete CE 16 11442 1501399
Arzano NA 16 34886 1536285
Sant'Antimo NA 16 33905 1570190
Casandrino NA 17 14336 1584526
Casoria NA 17 77642 1662168
Ischia NA 17 19915 1682083
San Giorgio a Cremano NA 18 45557 1727640
Grumo Nevano NA 18 18061 1745701
Lusciano CE 18 15362 1761063
Trentola-Ducenta CE 18 19429 1780492
Cesa CE 19 8841 1789333
Ercolano NA 19 53709 1843042
Frattamaggiore NA 19 30329 1873371
Aversa CE 19 53047 1926418
Sant'Arpino CE 19 14307 1940725
Casapesenna CE 19 6987 1947712
Portici NA 20 55274 2002986
San Marcellino CE 20 14155 2017141
Casamicciola Terme NA 20 8362 2025503
Afragola NA 20 65057 2090560
Succivo CE 20 8457 2099017
Frattaminore NA 20 16208 2115225

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SE of Pozzuoli (81661 inhabitants)
11 Km SW of Marano di Napoli (59874 inhabitants)
11 Km W of Napoli (974074 inhabitants)
14 Km SW of Giugliano in Campania (122974 inhabitants)
17 Km SW of Casoria (77642 inhabitants)
19 Km W of Ercolano (53709 inhabitants)
19 Km SW of Aversa (53047 inhabitants)
20 Km W of Portici (55274 inhabitants)
20 Km SW of Afragola (65057 inhabitants)
21 Km W of Torre del Greco (86275 inhabitants)
25 Km SW of Acerra (59573 inhabitants)
33 Km W of Castellammare di Stabia (66466 inhabitants)
34 Km SW of Caserta (76326 inhabitants)
35 Km W of Scafati (50787 inhabitants)
51 Km W of Cava de' Tirreni (53659 inhabitants)
56 Km W of Salerno (135261 inhabitants)
58 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
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 2020-09-10
01:48:57
40.82 14.12 1 2020-09-10
03:17:36
Sala Operativa INGV_OV (Napoli) 82778901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-10 01:48:57
Latitude 40.82
Longitude 14.12
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 82778901

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) 149
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) 0.11
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 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 82778901
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-09-10 03:17:36
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