Earthquake with magnitude of Md 0.7 on date 17-08-2016 and time 04:13:42 (Italy) in region 3 km SE Massa di Somma (NA)

A magnitude Md 0.7 earthquake occured in region: 3 km SE Massa di Somma (NA), on

  • 17-08-2016 02:13:42 (UTC)
  • 17-08-2016 04:13:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8300, 14.4120 at 2 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Massa di Somma NA 4 5444 5444
San Sebastiano al Vesuvio NA 4 9196 14640
Sant'Anastasia NA 4 27671 42311
Pollena Trocchia NA 4 13562 55873
Portici NA 5 55274 111147
Somma Vesuviana NA 5 35233 146380
Cercola NA 6 18267 164647
Ercolano NA 6 53709 218356
Torre del Greco NA 6 86275 304631
Ottaviano NA 6 23860 328491
San Giorgio a Cremano NA 7 45557 374048
Trecase NA 7 9097 383145
Boscotrecase NA 7 10363 393508
Terzigno NA 8 18968 412476
Volla NA 8 23755 436231
San Giuseppe Vesuviano NA 8 30657 466888
Boscoreale NA 8 28072 494960
Torre Annunziata NA 8 42789 537749
Pomigliano d'Arco NA 9 39922 577671
Castello di Cisterna NA 10 7869 585540
Brusciano NA 10 16466 602006
San Gennaro Vesuviano NA 11 11966 613972
Casalnuovo di Napoli NA 11 49855 663827
Mariglianella NA 11 7787 671614
Marigliano NA 11 30157 701771
Poggiomarino NA 11 21976 723747
Scisciano NA 12 5994 729741
Pompei NA 12 25358 755099
San Vitaliano NA 12 6461 761560
Saviano NA 12 15982 777542
Palma Campania NA 13 15978 793520
Scafati SA 13 50787 844307
Casoria NA 13 77642 921949
Afragola NA 14 65057 987006
Napoli NA 14 974074 1961080
Acerra NA 14 59573 2020653
Casavatore NA 14 18661 2039314
Striano NA 14 8397 2047711
Nola NA 15 34431 2082142
Santa Maria la Carità NA 15 11722 2093864
Carbonara di Nola NA 15 2429 2096293
San Paolo Bel Sito NA 15 3513 2099806
Arzano NA 15 34886 2134692
Liveri NA 16 1607 2136299
Cimitile NA 16 7280 2143579
Domicella AV 16 1862 2145441
Castellammare di Stabia NA 16 66466 2211907
San Marzano sul Sarno SA 16 10442 2222349
Angri SA 16 34002 2256351
Cardito NA 16 22755 2279106
Marzano di Nola AV 16 1727 2280833
Sant'Antonio Abate NA 16 19743 2300576
San Valentino Torio SA 17 10947 2311523
Casamarciano NA 17 3289 2314812
Caivano NA 17 37879 2352691
Camposano NA 17 5333 2358024
Frattamaggiore NA 17 30329 2388353
Crispano NA 17 12354 2400707
Grumo Nevano NA 18 18061 2418768
Sarno SA 18 31529 2450297
Lettere NA 18 6188 2456485
Casandrino NA 18 14336 2470821
Casola di Napoli NA 18 3898 2474719
Comiziano NA 18 1814 2476533
Pago del Vallo di Lauro AV 18 1830 2478363
Gragnano NA 18 29136 2507499
Visciano NA 18 4454 2511953
Vico Equense NA 18 20969 2532922
Melito di Napoli NA 18 37826 2570748
Frattaminore NA 18 16208 2586956
Cicciano NA 19 12906 2599862
Sant'Antimo NA 19 33905 2633767
Sant'Egidio del Monte Albino SA 19 8909 2642676
Tufino NA 19 3776 2646452
Pimonte NA 19 5980 2652432
Corbara SA 19 2545 2654977
Orta di Atella CE 19 27191 2682168
Lauro AV 19 3509 2685677
Mugnano di Napoli NA 19 34828 2720505
Sant'Arpino CE 20 14307 2734812
Taurano AV 20 1546 2736358

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Portici (55274 inhabitants)
6 Km E of Ercolano (53709 inhabitants)
6 Km NE of Torre del Greco (86275 inhabitants)
13 Km NW of Scafati (50787 inhabitants)
13 Km SE of Casoria (77642 inhabitants)
14 Km SE of Afragola (65057 inhabitants)
14 Km S of Acerra (59573 inhabitants)
14 Km E of Napoli (974074 inhabitants)
16 Km NW of Castellammare di Stabia (66466 inhabitants)
20 Km E of Marano di Napoli (59874 inhabitants)
21 Km SE of Giugliano in Campania (122974 inhabitants)
24 Km SE of Aversa (53047 inhabitants)
27 Km E of Pozzuoli (81661 inhabitants)
28 Km S of Caserta (76326 inhabitants)
29 Km NW of Cava de' Tirreni (53659 inhabitants)
34 Km W of Avellino (54857 inhabitants)
34 Km NW of Salerno (135261 inhabitants)
46 Km SW of Benevento (60091 inhabitants)
54 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
Reviewed
Rev100
Md 0.7 2016-08-17
02:13:42
40.8295 14.4117 2 2016-08-17
02:24:06
Sala Sismica INGV-Roma 26858011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-08-17 02:13:42 ± 0.55
Latitude 40.8295 ± 0.0270
Longitude 14.4117 ± 0.0642
Depth (km) 2 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 26858011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5624
Semi-minor axis of confidence ellipse (meter) 2385
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 5620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 231
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) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.01079
Epicentral distance of station farthest from the epicenter (degree) 0.02518
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 5
Type of magnitude Md
Reference to an origin 26858011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-08-17 02:24:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTO.HHZ. 2016-08-17T02:13:43.12 0.1 undecidable manual S 136 1.2987 152 0.02 100
IV.VVDG.HHZ. 2016-08-17T02:13:43.10 0.6 undecidable manual P 56 1.1988 153 0.4 46
IV.VBKN.HHZ. 2016-08-17T02:13:43.39 1.0 undecidable manual S 88 1.4985 147 0.25 24
IV.VTIR.HHZ. 2016-08-17T02:13:43.21 0.3 undecidable manual P 158 2.7972 130 0.31 71
IV.CRTO.HHZ. 2016-08-17T02:13:42.26 0.1 positive manual P 136 1.2987 152 -0.45 91
IV.VBKN.HHZ. 2016-08-17T02:13:42.58 0.3 negative manual P 88 1.4985 147 -0.15 73
IV.VARP.HHZ. 2016-08-17T02:13:42.81 0.6 negative manual P 185 1.3986 149 0.09 49
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