Earthquake with magnitude of Md 1.4 on date 03-12-2018 and time 21:58:29 (Italy) in region 5 km SE Massa di Somma (NA)

A magnitude Md 1.4 earthquake occured in region: 5 km SE Massa di Somma (NA), on

  • 03-12-2018 20:58:29 (UTC)
  • 03-12-2018 21:58:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.82, 14.42 at 1 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
San Sebastiano al Vesuvio NA 5 9196 9196
Massa di Somma NA 5 5444 14640
Portici NA 6 55274 69914
Sant'Anastasia NA 6 27671 97585
Pollena Trocchia NA 6 13562 111147
Trecase NA 6 9097 120244
Somma Vesuviana NA 6 35233 155477
Torre del Greco NA 6 86275 241752
Ottaviano NA 6 23860 265612
Boscotrecase NA 6 10363 275975
Ercolano NA 6 53709 329684
Terzigno NA 7 18968 348652
Boscoreale NA 7 28072 376724
Cercola NA 7 18267 394991
Torre Annunziata NA 7 42789 437780
San Giorgio a Cremano NA 7 45557 483337
San Giuseppe Vesuviano NA 8 30657 513994
Volla NA 9 23755 537749
Pomigliano d'Arco NA 10 39922 577671
Pompei NA 10 25358 603029
San Gennaro Vesuviano NA 10 11966 614995
Poggiomarino NA 11 21976 636971
Castello di Cisterna NA 11 7869 644840
Brusciano NA 11 16466 661306
Mariglianella NA 12 7787 669093
Scafati SA 12 50787 719880
Casalnuovo di Napoli NA 12 49855 769735
Scisciano NA 12 5994 775729
Marigliano NA 12 30157 805886
Saviano NA 13 15982 821868
Palma Campania NA 13 15978 837846
San Vitaliano NA 13 6461 844307
Striano NA 13 8397 852704
Santa Maria la Carità NA 14 11722 864426
Napoli NA 14 974074 1838500
Casoria NA 15 77642 1916142
Acerra NA 15 59573 1975715
Carbonara di Nola NA 15 2429 1978144
Afragola NA 15 65057 2043201
Castellammare di Stabia NA 15 66466 2109667
Nola NA 15 34431 2144098
San Marzano sul Sarno SA 15 10442 2154540
San Paolo Bel Sito NA 15 3513 2158053
Casavatore NA 15 18661 2176714
Angri SA 15 34002 2210716
Sant'Antonio Abate NA 15 19743 2230459
Liveri NA 16 1607 2232066
Domicella AV 16 1862 2233928
San Valentino Torio SA 16 10947 2244875
Cimitile NA 16 7280 2252155
Arzano NA 16 34886 2287041
Marzano di Nola AV 16 1727 2288768
Lettere NA 17 6188 2294956
Casola di Napoli NA 17 3898 2298854
Gragnano NA 17 29136 2327990
Sarno SA 17 31529 2359519
Casamarciano NA 17 3289 2362808
Vico Equense NA 17 20969 2383777
Cardito NA 18 22755 2406532
Camposano NA 18 5333 2411865
Sant'Egidio del Monte Albino SA 18 8909 2420774
Pago del Vallo di Lauro AV 18 1830 2422604
Pimonte NA 18 5980 2428584
Corbara SA 18 2545 2431129
Caivano NA 18 37879 2469008
Visciano NA 18 4454 2473462
Frattamaggiore NA 18 30329 2503791
Comiziano NA 18 1814 2505605
Crispano NA 19 12354 2517959
Grumo Nevano NA 19 18061 2536020
Pagani SA 19 35834 2571854
Cicciano NA 19 12906 2584760
Lauro AV 19 3509 2588269
Casandrino NA 19 14336 2602605
Meta NA 20 8015 2610620
Tufino NA 20 3776 2614396
Melito di Napoli NA 20 37826 2652222
Taurano AV 20 1546 2653768
Frattaminore NA 20 16208 2669976
Quindici AV 20 1938 2671914
Sant'Antimo NA 20 33905 2705819

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Portici (55274 inhabitants)
6 Km NE of Torre del Greco (86275 inhabitants)
6 Km E of Ercolano (53709 inhabitants)
12 Km NW of Scafati (50787 inhabitants)
14 Km E of Napoli (974074 inhabitants)
15 Km SE of Casoria (77642 inhabitants)
15 Km S of Acerra (59573 inhabitants)
15 Km SE of Afragola (65057 inhabitants)
15 Km NW of Castellammare di Stabia (66466 inhabitants)
21 Km E of Marano di Napoli (59874 inhabitants)
22 Km SE of Giugliano in Campania (122974 inhabitants)
25 Km SE of Aversa (53047 inhabitants)
28 Km W of Cava de' Tirreni (53659 inhabitants)
28 Km E of Pozzuoli (81661 inhabitants)
29 Km S of Caserta (76326 inhabitants)
33 Km NW of Salerno (135261 inhabitants)
33 Km W of Avellino (54857 inhabitants)
46 Km SW of Benevento (60091 inhabitants)
53 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
Rev 1000 Md 1.4 2018-12-03
20:58:29
40.82 14.42 1 2019-06-04
09:16:18
Bollettino Sismico Italiano INGV 68757031
Rev 200 ML 1.3 2018-12-03
20:58:30
40.82 14.43 1 2018-12-03
22:16:57
Sala Operativa INGV-OV (Napoli) 63624401
Rev 100 ML 1.7 2018-12-03
20:58:28
40.77 14.3 1 2018-12-03
21:08:06
Sala Sismica INGV-Roma 63622491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 20:58:29 ± 0.18
Latitude 40.82 ± 0.00
Longitude 14.42 ± 0.00
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 68757031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 139
Semi-minor axis of confidence ellipse (meter) 70
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.01169
Epicentral distance of station farthest from the epicenter (degree) 0.01889
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 63622491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 21:08:06

ML:1.3

Field Value
Value 1.3
Uncertainty 0
Num. used stations
Type of magnitude ML
Reference to an origin 63624401
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2018-12-03 22:16:57

Md:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 68757031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-21 11:35:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVDG.HHZ. 2018-12-03T20:58:31.33 0.6 undecidable manual S 10 0.0153 119 -0.22 48
IV.OVO.HHZ. 2018-12-03T20:58:31.03 0.3 undecidable manual P 292 0.0189 114 0.11 74
IV.VTIR.HHZ. 2018-12-03T20:58:31.44 0.3 undecidable manual S 168 0.0144 120 -0.03 75
IV.VBKN.HHZ. 2018-12-03T20:58:31.37 0.3 undecidable manual S 37 0.0117 125 0.13 73
IV.OVO.HHZ. 2018-12-03T20:58:31.90 0.6 undecidable manual S 292 0.0189 114 0 50
IV.VVDG.HHZ. 2018-12-03T20:58:30.62 0.1 undecidable manual P 10 0.0153 119 -0.1 98
IV.VTIR.HHZ. 2018-12-03T20:58:30.66 0.1 negative manual P 168 0.0144 120 -0.02 100
IV.VBKN.HHZ. 2018-12-03T20:58:30.63 0.1 undecidable manual P 37 0.0117 125 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VTIR.HHZ. Md:1.3 12 END duration s
IV.VBKN.HHZ. Md:1.4 13 END duration s
IV.OVO.HHZ. Md:1.4 14 END duration s
IV.VVDG.HHZ. Md:1.6 17 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