Earthquake with magnitude of Md 0.9 on date 31-10-2019 and time 00:21:27 (Italy) in region 5 km SW Ottaviano (NA)

A magnitude Md 0.9 earthquake occured in region: 5 km SW Ottaviano (NA), on

  • 30-10-2019 23:21:27 (UTC)
  • 31-10-2019 00:21:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.83, 14.43 at 0 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
Ottaviano NA 5 23860 23860
Somma Vesuviana NA 5 35233 59093
Massa di Somma NA 5 5444 64537
Sant'Anastasia NA 5 27671 92208
San Sebastiano al Vesuvio NA 5 9196 101404
Pollena Trocchia NA 6 13562 114966
Boscotrecase NA 6 10363 125329
Terzigno NA 6 18968 144297
Trecase NA 6 9097 153394
Portici NA 6 55274 208668
San Giuseppe Vesuviano NA 7 30657 239325
Boscoreale NA 7 28072 267397
Torre del Greco NA 7 86275 353672
Cercola NA 7 18267 371939
Ercolano NA 7 53709 425648
Torre Annunziata NA 8 42789 468437
San Giorgio a Cremano NA 8 45557 513994
San Gennaro Vesuviano NA 9 11966 525960
Volla NA 9 23755 549715
Poggiomarino NA 10 21976 571691
Pomigliano d'Arco NA 10 39922 611613
Pompei NA 10 25358 636971
Castello di Cisterna NA 11 7869 644840
Brusciano NA 11 16466 661306
Scisciano NA 11 5994 667300
Mariglianella NA 11 7787 675087
Marigliano NA 12 30157 705244
Palma Campania NA 12 15978 721222
Scafati SA 12 50787 772009
Saviano NA 12 15982 787991
San Vitaliano NA 12 6461 794452
Casalnuovo di Napoli NA 12 49855 844307
Striano NA 13 8397 852704
Santa Maria la Carità NA 13 11722 864426
Carbonara di Nola NA 14 2429 866855
San Paolo Bel Sito NA 14 3513 870368
Nola NA 14 34431 904799
Liveri NA 14 1607 906406
San Marzano sul Sarno SA 14 10442 916848
Acerra NA 14 59573 976421
Domicella AV 15 1862 978283
Angri SA 15 34002 1012285
San Valentino Torio SA 15 10947 1023232
Casoria NA 15 77642 1100874
Afragola NA 15 65057 1165931
Sant'Antonio Abate NA 15 19743 1185674
Castellammare di Stabia NA 15 66466 1252140
Cimitile NA 15 7280 1259420
Napoli NA 15 974074 2233494
Marzano di Nola AV 15 1727 2235221
Casavatore NA 16 18661 2253882
Sarno SA 16 31529 2285411
Casamarciano NA 16 3289 2288700
Lettere NA 16 6188 2294888
Arzano NA 17 34886 2329774
Casola di Napoli NA 17 3898 2333672
Camposano NA 17 5333 2339005
Pago del Vallo di Lauro AV 17 1830 2340835
Gragnano NA 17 29136 2369971
Visciano NA 17 4454 2374425
Sant'Egidio del Monte Albino SA 17 8909 2383334
Comiziano NA 18 1814 2385148
Vico Equense NA 18 20969 2406117
Cardito NA 18 22755 2428872
Corbara SA 18 2545 2431417
Lauro AV 18 3509 2434926
Pimonte NA 18 5980 2440906
Cicciano NA 18 12906 2453812
Caivano NA 18 37879 2491691
Pagani SA 18 35834 2527525
Tufino NA 19 3776 2531301
Frattamaggiore NA 19 30329 2561630
Taurano AV 19 1546 2563176
Crispano NA 19 12354 2575530
Quindici AV 19 1938 2577468
Grumo Nevano NA 19 18061 2595529
Casandrino NA 20 14336 2609865
Frattaminore NA 20 16208 2626073
Roccarainola NA 20 7082 2633155
Nocera Inferiore SA 20 46043 2679198
Meta NA 20 8015 2687213

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Portici (55274 inhabitants)
7 Km NE of Torre del Greco (86275 inhabitants)
7 Km E of Ercolano (53709 inhabitants)
12 Km NW of Scafati (50787 inhabitants)
14 Km SE of Acerra (59573 inhabitants)
15 Km SE of Casoria (77642 inhabitants)
15 Km SE of Afragola (65057 inhabitants)
15 Km N of Castellammare di Stabia (66466 inhabitants)
15 Km E of Napoli (974074 inhabitants)
22 Km E of Marano di Napoli (59874 inhabitants)
23 Km SE of Giugliano in Campania (122974 inhabitants)
25 Km SE of Aversa (53047 inhabitants)
27 Km NW of Cava de' Tirreni (53659 inhabitants)
29 Km E of Pozzuoli (81661 inhabitants)
29 Km S of Caserta (76326 inhabitants)
32 Km NW of Salerno (135261 inhabitants)
32 Km W of Avellino (54857 inhabitants)
45 Km SW of Benevento (60091 inhabitants)
53 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
Rev 200 Md 0.9 2019-10-30
23:21:27
40.83 14.43 0 2019-10-31
00:45:19
Sala Operativa INGV-OV (Napoli) 73543501
Rev 100 Md 1.6 2019-10-30
23:21:25
40.84 14.44 7 2019-10-30
23:28:53
Sala Sismica INGV-Roma 73542021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-30 23:21:27
Latitude 40.83
Longitude 14.43
Depth (km) 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV
Event type earthquake
Origin ID 73543501

Uncertainty

Field Value
Preferred uncertainty description
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) 0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
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)
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:0.9

Field Value
Value 0.9
Uncertainty
Num. used stations
Type of magnitude Md
Reference to an origin 73543501
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2019-10-31 00:45:19

Md:1.6

Field Value
Value 1.6
Uncertainty 0.9
Num. used stations 3
Type of magnitude Md
Reference to an origin 73542021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-30 23:28:53
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