Earthquake with magnitude of Md 1.0 on date 19-04-2017 and time 23:22:28 (Italy) in region 5 km N Trecase (NA)

A magnitude Md 1.0 earthquake occured in region: 5 km N Trecase (NA), on

  • 19-04-2017 21:22:28 (UTC)
  • 19-04-2017 23:22:28 (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
San Sebastiano al Vesuvio NA 6 9196 28656
Massa di Somma NA 6 5444 34100
Torre del Greco NA 6 86275 120375
Boscoreale NA 6 28072 148447
Ottaviano NA 6 23860 172307
Portici NA 6 55274 227581
Terzigno NA 6 18968 246549
Somma Vesuviana NA 6 35233 281782
Torre Annunziata NA 6 42789 324571
Pollena Trocchia NA 6 13562 338133
Sant'Anastasia NA 6 27671 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 10 25358 539352
Poggiomarino NA 10 21976 561328
Volla NA 10 23755 585083
San Gennaro Vesuviano NA 10 11966 597049
Pomigliano d'Arco NA 11 39922 636971
Scafati SA 11 50787 687758
Castello di Cisterna NA 12 7869 695627
Brusciano NA 12 16466 712093
Santa Maria la Carità NA 13 11722 723815
Palma Campania NA 13 15978 739793
Scisciano NA 13 5994 745787
Mariglianella NA 13 7787 753574
Striano NA 13 8397 761971
Marigliano NA 13 30157 792128
Casalnuovo di Napoli NA 13 49855 841983
Saviano NA 13 15982 857965
San Vitaliano NA 13 6461 864426
Castellammare di Stabia NA 14 66466 930892
San Marzano sul Sarno SA 14 10442 941334
Sant'Antonio Abate NA 14 19743 961077
Angri SA 14 34002 995079
Carbonara di Nola NA 15 2429 997508
Napoli NA 15 974074 1971582
San Valentino Torio SA 15 10947 1982529
San Paolo Bel Sito NA 15 3513 1986042
Nola NA 15 34431 2020473
Casoria NA 15 77642 2098115
Domicella AV 16 1862 2099977
Acerra NA 16 59573 2159550
Afragola NA 16 65057 2224607
Liveri NA 16 1607 2226214
Lettere NA 16 6188 2232402
Gragnano NA 16 29136 2261538
Casola di Napoli NA 16 3898 2265436
Casavatore NA 16 18661 2284097
Sarno SA 16 31529 2315626
Marzano di Nola AV 16 1727 2317353
Vico Equense NA 17 20969 2338322
Cimitile NA 17 7280 2345602
Sant'Egidio del Monte Albino SA 17 8909 2354511
Arzano NA 17 34886 2389397
Pimonte NA 17 5980 2395377
Casamarciano NA 17 3289 2398666
Corbara SA 17 2545 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
Cardito NA 19 22755 2471417
Comiziano NA 19 1814 2473231
Meta NA 19 8015 2481246
Lauro AV 19 3509 2484755
Caivano NA 19 37879 2522634
Frattamaggiore NA 19 30329 2552963
Taurano AV 19 1546 2554509
Cicciano NA 20 12906 2567415
Crispano NA 20 12354 2579769
Quindici AV 20 1938 2581707
Grumo Nevano NA 20 18061 2599768
Nocera Inferiore SA 20 46043 2645811
Tufino NA 20 3776 2649587
Sant'Agnello NA 20 9122 2658709
Piano di Sorrento NA 20 13109 2671818

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km NE 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)
15 Km SE of Casoria (77642 inhabitants)
16 Km S of Acerra (59573 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)
28 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 1.0 2017-04-19
21:22:28
40.81 14.43 0 2018-01-10
09:56:15
Bollettino Sismico Italiano INGV 50607301
Rev 100 Md 1.2 2017-04-19
21:22:28
40.8 14.41 2 2017-04-19
21:30:37
Sala Sismica INGV-Roma 44110041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-19 21:22:28 ± 0.12
Latitude 40.81 ± 0.01
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 50607301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 760
Semi-minor axis of confidence ellipse (meter) 590
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 304
Circular confidence region, given by single value of horizontal uncertainty (meter) 760
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00719
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:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 44110041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-19 21:30:37

Md:1

Field Value
Value 1
Uncertainty 0.5
Num. used stations 4
Type of magnitude Md
Reference to an origin 50607301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-01 14:35:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVDG.HHZ. 2017-04-19T21:22:29.31 0.3 undecidable manual P 356 0.0225 92 0.3 70
IV.VARP.HHZ. 2017-04-19T21:22:29.17 0.6 undecidable manual S 284 0.0126 94 0.17 48
IV.VCRE.HHZ. 2017-04-19T21:22:28.75 0.1 undecidable manual P 36 0.0072 97 0.08 99
IV.CRTO.HHE. 2017-04-19T21:22:28.38 0.1 undecidable manual P 340 0.0081 96 -0.32 94
IV.VBKN.HHZ. 2017-04-19T21:22:28.84 0.1 undecidable manual P 10 0.0171 93 -0.05 99
IV.VARP.HHZ. 2017-04-19T21:22:28.78 0.1 undecidable manual P 284 0.0126 94 -0.01 100
IV.VTIR.HHZ. 2017-04-19T21:22:28.67 0.1 undecidable manual P 191 0.0081 97 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VARP.HHZ. Md:1 8 END duration s
IV.VCRE.HHZ. Md:1 9 END duration s
IV.VBKN.HHZ. Md:1 8 END duration s
IV.VVDG.HHZ. Md:1 8 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