Earthquake with magnitude of Md 1.5 on date 30-04-2017 and time 05:30:21 (UTC) in region 3 km SW Ottaviano (NA)

A magnitude Md 1.5 earthquake occured in region: 3 km SW Ottaviano (NA), on

  • 30-04-2017 05:30:21 (UTC)
  • 30-04-2017 07:30:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.83, 14.46 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 3 23860 23860
Terzigno NA 4 18968 42828
San Giuseppe Vesuviano NA 4 30657 73485
Somma Vesuviana NA 5 35233 108718
Boscotrecase NA 6 10363 119081
Boscoreale NA 6 28072 147153
San Gennaro Vesuviano NA 7 11966 159119
Trecase NA 7 9097 168216
Sant'Anastasia NA 7 27671 195887
Poggiomarino NA 7 21976 217863
Massa di Somma NA 8 5444 223307
Torre Annunziata NA 8 42789 266096
San Sebastiano al Vesuvio NA 8 9196 275292
Pollena Trocchia NA 8 13562 288854
Palma Campania NA 9 15978 304832
Pompei NA 9 25358 330190
Portici NA 9 55274 385464
Torre del Greco NA 9 86275 471739
Cercola NA 10 18267 490006
Striano NA 10 8397 498403
Saviano NA 10 15982 514385
Ercolano NA 10 53709 568094
Scisciano NA 10 5994 574088
Scafati SA 10 50787 624875
Pomigliano d'Arco NA 11 39922 664797
San Vitaliano NA 11 6461 671258
Carbonara di Nola NA 11 2429 673687
San Giorgio a Cremano NA 11 45557 719244
Marigliano NA 11 30157 749401
Brusciano NA 11 16466 765867
Castello di Cisterna NA 11 7869 773736
Mariglianella NA 11 7787 781523
Volla NA 12 23755 805278
San Paolo Bel Sito NA 12 3513 808791
Domicella AV 12 1862 810653
San Marzano sul Sarno SA 12 10442 821095
Liveri NA 12 1607 822702
San Valentino Torio SA 12 10947 833649
Nola NA 12 34431 868080
Santa Maria la Carità NA 13 11722 879802
Angri SA 13 34002 913804
Marzano di Nola AV 13 1727 915531
Sarno SA 13 31529 947060
Sant'Antonio Abate NA 14 19743 966803
Casalnuovo di Napoli NA 14 49855 1016658
Cimitile NA 14 7280 1023938
Casamarciano NA 14 3289 1027227
Pago del Vallo di Lauro AV 14 1830 1029057
Castellammare di Stabia NA 15 66466 1095523
Visciano NA 15 4454 1099977
Sant'Egidio del Monte Albino SA 15 8909 1108886
Camposano NA 15 5333 1114219
Lettere NA 15 6188 1120407
Lauro AV 15 3509 1123916
Acerra NA 15 59573 1183489
Comiziano NA 16 1814 1185303
Casola di Napoli NA 16 3898 1189201
Taurano AV 16 1546 1190747
Corbara SA 16 2545 1193292
Quindici AV 16 1938 1195230
Gragnano NA 16 29136 1224366
Pagani SA 16 35834 1260200
Cicciano NA 17 12906 1273106
Tufino NA 17 3776 1276882
Afragola NA 17 65057 1341939
Casoria NA 17 77642 1419581
Moschiano AV 17 1673 1421254
Pimonte NA 18 5980 1427234
Nocera Inferiore SA 18 46043 1473277
Casavatore NA 18 18661 1491938
Napoli NA 18 974074 2466012
Roccarainola NA 18 7082 2473094
Sperone AV 18 3706 2476800
Vico Equense NA 18 20969 2497769
Avella AV 19 7890 2505659
Arzano NA 19 34886 2540545
Baiano AV 19 4718 2545263
Sirignano AV 19 2933 2548196
Cardito NA 19 22755 2570951
Siano SA 20 9979 2580930
Mugnano del Cardinale AV 20 5373 2586303
Quadrelle AV 20 1865 2588168
Nocera Superiore SA 20 24263 2612431
Caivano NA 20 37879 2650310

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Portici (55274 inhabitants)
9 Km E of Torre del Greco (86275 inhabitants)
10 Km E of Ercolano (53709 inhabitants)
10 Km NW of Scafati (50787 inhabitants)
15 Km N of Castellammare di Stabia (66466 inhabitants)
15 Km SE of Acerra (59573 inhabitants)
17 Km SE of Afragola (65057 inhabitants)
17 Km SE of Casoria (77642 inhabitants)
18 Km E of Napoli (974074 inhabitants)
24 Km E of Marano di Napoli (59874 inhabitants)
25 Km NW of Cava de' Tirreni (53659 inhabitants)
25 Km E of Giugliano in Campania (122974 inhabitants)
27 Km SE of Aversa (53047 inhabitants)
30 Km W of Avellino (54857 inhabitants)
30 Km SE of Caserta (76326 inhabitants)
30 Km NW of Salerno (135261 inhabitants)
32 Km E of Pozzuoli (81661 inhabitants)
43 Km SW of Benevento (60091 inhabitants)
50 Km NW 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
Rev 1000 Md 1.5 2017-04-30
05:30:21
40.83 14.46 0 2018-01-10
09:56:14
Bollettino Sismico Italiano INGV 50216881
Rev 100 Md 1.0 2017-04-30
05:30:21
40.83 14.48 0 2017-04-30
05:43:13
Sala Sismica INGV-Roma 44629771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-30 05:30:21 ± 0.17
Latitude 40.83 ± 0.01
Longitude 14.46 ± 0.01
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50216881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 696
Semi-minor axis of confidence ellipse (meter) 610
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 71
Circular confidence region, given by single value of horizontal uncertainty (meter) 700
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 310
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.05126
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:1.5

Field Value
Value 1.5
Uncertainty 0.8
Num. used stations 6
Type of magnitude Md
Reference to an origin 50216881
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-18 11:34:54

Md:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 6
Type of magnitude Md
Reference to an origin 44629771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-30 05:43:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VTIR.HHZ. 2017-04-30T05:30:23.46 0.3 undecidable manual S 234 0.0378 94 0.18 73
IV.VVDG.HHZ. 2017-04-30T05:30:23.20 0.3 undecidable manual S 284 0.0315 95 0.14 73
IV.CRTO.HHZ. 2017-04-30T05:30:23.12 0.3 undecidable manual S 258 0.0324 95 0.02 75
IV.OVO.HHN. 2017-04-30T05:30:23.24 0.3 undecidable manual P 270 0.0513 93 0.26 71
IV.CRTO.HHZ. 2017-04-30T05:30:22.38 0.1 undecidable manual P 258 0.0324 95 -0.18 97
IV.VBKN.HHZ. 2017-04-30T05:30:22.40 0.1 undecidable manual P 275 0.0261 96 -0.02 100
IV.VCRE.HHZ. 2017-04-30T05:30:22.67 0.6 undecidable manual S 251 0.027 96 -0.19 48
IV.VTIR.HHZ. 2017-04-30T05:30:22.74 0.1 undecidable manual P 234 0.0378 94 0.07 99
IV.VVDG.HHZ. 2017-04-30T05:30:22.59 0.1 undecidable manual P 284 0.0315 95 0.05 99
IV.VCRE.HHZ. 2017-04-30T05:30:22.35 0.1 undecidable manual P 251 0.027 96 -0.08 99
IV.VARP.HHZ. 2017-04-30T05:30:22.69 0.1 undecidable manual P 255 0.0432 94 -0.09 98
IV.VBKN.HHZ. 2017-04-30T05:30:22.72 0.3 undecidable manual S 275 0.0261 96 -0.13 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VCRE.HHZ. Md:1.4 14 END duration s
IV.CRTO.HHZ. Md:1.4 14 END duration s
IV.VBKN.HHZ. Md:1.4 13 END duration s
IV.VVDG.HHZ. Md:1.4 13 END duration s
IV.VARP.HHZ. Md:1.6 16 END duration s
IV.VTIR.HHZ. Md:1.6 16 END duration s
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