Earthquake with magnitude of Md 0.9 on date 04-04-2017 and time 21:29:09 (Italy) in region 5 km N Trecase (NA)

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

  • 04-04-2017 19:29:09 (UTC)
  • 04-04-2017 21:29:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.81, 14.43 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
Trecase NA 5 9097 9097
Boscotrecase NA 5 10363 19460
Boscoreale NA 6 28072 47532
Massa di Somma NA 6 5444 52976
San Sebastiano al Vesuvio NA 6 9196 62172
Terzigno NA 6 18968 81140
Ottaviano NA 6 23860 105000
Torre del Greco NA 6 86275 191275
Torre Annunziata NA 6 42789 234064
Somma Vesuviana NA 6 35233 269297
Portici NA 6 55274 324571
Sant'Anastasia NA 7 27671 352242
Pollena Trocchia NA 7 13562 365804
Ercolano NA 7 53709 419513
San Giuseppe Vesuviano NA 7 30657 450170
Cercola NA 8 18267 468437
San Giorgio a Cremano NA 8 45557 513994
Pompei NA 9 25358 539352
Poggiomarino NA 10 21976 561328
San Gennaro Vesuviano NA 10 11966 573294
Volla NA 10 23755 597049
Scafati SA 11 50787 647836
Pomigliano d'Arco NA 11 39922 687758
Castello di Cisterna NA 12 7869 695627
Brusciano NA 12 16466 712093
Palma Campania NA 12 15978 728071
Santa Maria la Carità NA 12 11722 739793
Scisciano NA 13 5994 745787
Striano NA 13 8397 754184
Marigliano NA 13 30157 784341
Mariglianella NA 13 7787 792128
Saviano NA 13 15982 808110
Casalnuovo di Napoli NA 13 49855 857965
San Vitaliano NA 13 6461 864426
Castellammare di Stabia NA 14 66466 930892
Sant'Antonio Abate NA 14 19743 950635
Angri SA 14 34002 984637
San Marzano sul Sarno SA 14 10442 995079
Carbonara di Nola NA 14 2429 997508
San Valentino Torio SA 15 10947 1008455
San Paolo Bel Sito NA 15 3513 1011968
Nola NA 15 34431 1046399
Napoli NA 15 974074 2020473
Domicella AV 15 1862 2022335
Liveri NA 15 1607 2023942
Lettere NA 16 6188 2030130
Casola di Napoli NA 16 3898 2034028
Acerra NA 16 59573 2093601
Casoria NA 16 77642 2171243
Gragnano NA 16 29136 2200379
Afragola NA 16 65057 2265436
Sarno SA 16 31529 2296965
Marzano di Nola AV 16 1727 2298692
Casavatore NA 16 18661 2317353
Cimitile NA 16 7280 2324633
Vico Equense NA 16 20969 2345602
Sant'Egidio del Monte Albino SA 17 8909 2354511
Pimonte NA 17 5980 2360491
Corbara SA 17 2545 2363036
Casamarciano NA 17 3289 2366325
Arzano NA 17 34886 2401211
Pago del Vallo di Lauro AV 18 1830 2403041
Camposano NA 18 5333 2408374
Pagani SA 18 35834 2444208
Visciano NA 18 4454 2448662
Comiziano NA 19 1814 2450476
Meta NA 19 8015 2458491
Cardito NA 19 22755 2481246
Lauro AV 19 3509 2484755
Taurano AV 19 1546 2486301
Caivano NA 19 37879 2524180
Quindici AV 19 1938 2526118
Frattamaggiore NA 19 30329 2556447
Cicciano NA 19 12906 2569353
Nocera Inferiore SA 20 46043 2615396
Tufino NA 20 3776 2619172
Crispano NA 20 12354 2631526
Piano di Sorrento NA 20 13109 2644635
Sant'Agnello NA 20 9122 2653757
Grumo Nevano NA 20 18061 2671818

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Torre del Greco (86275 inhabitants)
6 Km E of Portici (55274 inhabitants)
7 Km E of Ercolano (53709 inhabitants)
11 Km NW of Scafati (50787 inhabitants)
14 Km NW of Castellammare di Stabia (66466 inhabitants)
15 Km E of Napoli (974074 inhabitants)
16 Km SE of Acerra (59573 inhabitants)
16 Km SE of Casoria (77642 inhabitants)
16 Km SE of Afragola (65057 inhabitants)
22 Km E of Marano di Napoli (59874 inhabitants)
23 Km SE of Giugliano in Campania (122974 inhabitants)
26 Km SE of Aversa (53047 inhabitants)
27 Km W of Cava de' Tirreni (53659 inhabitants)
29 Km E of Pozzuoli (81661 inhabitants)
30 Km S of Caserta (76326 inhabitants)
32 Km W of Salerno (135261 inhabitants)
33 Km W of Avellino (54857 inhabitants)
46 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
Rev 1000 Md 0.9 2017-04-04
19:29:09
40.81 14.43 0 2018-01-10
09:56:14
Bollettino Sismico Italiano INGV 50307631
Rev 100 Md 1.0 2017-04-04
19:29:08
40.79 14.43 3 2017-04-04
19:39:02
Sala Sismica INGV-Roma 43385731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-04 19:29:09 ± 0.09
Latitude 40.81 ± 0.00
Longitude 14.43 ± 0.01
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50307631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 610
Semi-minor axis of confidence ellipse (meter) 330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 190
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) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.0063
Epicentral distance of station farthest from the epicenter (degree) 0.02248
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:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 5
Type of magnitude Md
Reference to an origin 50307631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-04 16:24:12

Md:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 6
Type of magnitude Md
Reference to an origin 43385731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-04 19:39:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VARP.HHZ. 2017-04-04T19:29:10.18 0.3 undecidable manual S 284 0.0144 97 0.13 73
IV.VVDG.HHZ. 2017-04-04T19:29:10.11 0.3 undecidable manual P 350 0.0225 94 0.12 73
IV.VBKN.HHZ. 2017-04-04T19:29:09.85 0.1 undecidable manual P 2 0.0171 96 0 100
IV.VTIR.HHZ. 2017-04-04T19:29:09.97 0.1 undecidable manual S 207 0.0081 103 0.17 97
IV.VARP.HHZ. 2017-04-04T19:29:09.61 0.1 undecidable manual P 284 0.0144 97 -0.2 96
IV.VCRE.HHE. 2017-04-04T19:29:09.69 0.1 undecidable manual P 17 0.0063 106 0.07 99
IV.VTIR.HHZ. 2017-04-04T19:29:09.47 0.1 negative manual P 207 0.0081 103 -0.19 96
IV.CRTO.HHZ. 2017-04-04T19:29:09.62 0.3 undecidable manual P 328 0.0099 101 -0.08 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VTIR.HHZ. Md:0.7 6 END duration s
IV.CRTO.HHZ. Md:1 9 END duration s
IV.VARP.HHZ. Md:1 8 END duration s
IV.VCRE.HHE. Md:1 9 END duration s
IV.VBKN.HHZ. Md:1 8 END duration s
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download