Earthquake with magnitude of Md 1.1 on date 30-04-2017 and time 03:51:25 (Italy) in region 5 km SW Ottaviano (NA)

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

  • 30-04-2017 01:51:25 (UTC)
  • 30-04-2017 03:51:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8260, 14.4350 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 5 23860 23860
Somma Vesuviana NA 5 35233 59093
Sant'Anastasia NA 5 27671 86764
Massa di Somma NA 5 5444 92208
San Sebastiano al Vesuvio NA 6 9196 101404
Terzigno NA 6 18968 120372
Pollena Trocchia NA 6 13562 133934
Boscotrecase NA 6 10363 144297
Trecase NA 6 9097 153394
San Giuseppe Vesuviano NA 6 30657 184051
Boscoreale NA 7 28072 212123
Portici NA 7 55274 267397
Torre del Greco NA 7 86275 353672
Cercola NA 7 18267 371939
Ercolano NA 8 53709 425648
Torre Annunziata NA 8 42789 468437
San Giorgio a Cremano NA 8 45557 513994
San Gennaro Vesuviano NA 9 11966 525960
Poggiomarino NA 10 21976 547936
Volla NA 10 23755 571691
Pomigliano d'Arco NA 10 39922 611613
Pompei NA 10 25358 636971
Castello di Cisterna NA 10 7869 644840
Brusciano NA 11 16466 661306
Scisciano NA 11 5994 667300
Palma Campania NA 11 15978 683278
Marigliano NA 11 30157 713435
Mariglianella NA 11 7787 721222
Saviano NA 12 15982 737204
Scafati SA 12 50787 787991
San Vitaliano NA 12 6461 794452
Casalnuovo di Napoli NA 12 49855 844307
Striano NA 12 8397 852704
Carbonara di Nola NA 13 2429 855133
Santa Maria la Carità NA 13 11722 866855
Nola NA 14 34431 901286
San Paolo Bel Sito NA 14 3513 904799
Liveri NA 14 1607 906406
San Marzano sul Sarno SA 14 10442 916848
Domicella AV 14 1862 918710
Acerra NA 14 59573 978283
San Valentino Torio SA 15 10947 989230
Angri SA 15 34002 1023232
Sant'Antonio Abate NA 15 19743 1042975
Cimitile NA 15 7280 1050255
Marzano di Nola AV 15 1727 1051982
Casoria NA 15 77642 1129624
Afragola NA 15 65057 1194681
Castellammare di Stabia NA 15 66466 1261147
Napoli NA 16 974074 2235221
Sarno SA 16 31529 2266750
Casamarciano NA 16 3289 2270039
Casavatore NA 16 18661 2288700
Lettere NA 16 6188 2294888
Camposano NA 16 5333 2300221
Pago del Vallo di Lauro AV 17 1830 2302051
Casola di Napoli NA 17 3898 2305949
Gragnano NA 17 29136 2335085
Arzano NA 17 34886 2369971
Visciano NA 17 4454 2374425
Sant'Egidio del Monte Albino SA 17 8909 2383334
Comiziano NA 17 1814 2385148
Corbara SA 18 2545 2387693
Lauro AV 18 3509 2391202
Cardito NA 18 22755 2413957
Cicciano NA 18 12906 2426863
Vico Equense NA 18 20969 2447832
Pimonte NA 18 5980 2453812
Pagani SA 18 35834 2489646
Taurano AV 18 1546 2491192
Tufino NA 18 3776 2494968
Caivano NA 18 37879 2532847
Quindici AV 19 1938 2534785
Frattamaggiore NA 19 30329 2565114
Crispano NA 19 12354 2577468
Grumo Nevano NA 19 18061 2595529
Casandrino NA 20 14336 2609865
Roccarainola NA 20 7082 2616947
Nocera Inferiore SA 20 46043 2662990
Moschiano AV 20 1673 2664663
Frattaminore NA 20 16208 2680871

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km E of Portici (55274 inhabitants)
7 Km NE of Torre del Greco (86275 inhabitants)
8 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)
16 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)
52 Km W 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
Bulletin
Rev1000
Md 1.1 2017-04-30
01:51:25
40.8263 14.4347 0 2018-01-10
09:56:13
Bollettino Sismico Italiano INGV 50215381
Reviewed
Rev100
Md 1.0 2017-04-30
01:51:22
40.8582 14.5517 10 2017-04-30
02:25:19
Sala Sismica INGV-Roma 44623181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-30 01:51:25 ± 0.65
Latitude 40.8263 ± 0.0171
Longitude 14.4347 ± 0.0368
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50215381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3400
Semi-minor axis of confidence ellipse (meter) 1410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 3400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00540
Epicentral distance of station farthest from the epicenter (degree) 0.02158
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:1.0

Field Value
Value 1.0
Uncertainty 0.8
Num. used stations 2
Type of magnitude Md
Reference to an origin 44623181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-30 02:25:19

Md:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 50215381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-18 10:32:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VTIR.HHZ. 2017-04-30T01:51:26.11 0.3 undecidable manual P 201 2.3976 92 0.2 74
IV.VARP.HHZ. 2017-04-30T01:51:26.34 0.3 undecidable manual P 242 2.2977 92 0.45 71
IV.VCRE.HHZ. 2017-04-30T01:51:25.32 0.1 undecidable manual P 198 0.8991 97 -0.27 98
IV.VBKN.HHZ. 2017-04-30T01:51:25.38 0.1 undecidable manual P 316 0.5994 100 -0.16 100
IV.VVDG.HHZ. 2017-04-30T01:51:25.80 0.3 undecidable manual P 319 1.3986 94 0.1 76
IV.CRTO.HHZ. 2017-04-30T01:51:25.37 0.1 undecidable manual P 241 1.1988 95 -0.29 97
IV.VBKN.HHZ. 2017-04-30T01:51:25.68 0.6 undecidable manual S 316 0.5994 100 0.06 51
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download