Earthquake with magnitude of Md 0.5 on date 11-05-2018 and time 19:30:12 (Italy) in region 4 km SE Massa di Somma (NA)

A magnitude Md 0.5 earthquake occured in region: 4 km SE Massa di Somma (NA), on

  • 11-05-2018 17:30:12 (UTC)
  • 11-05-2018 19:30:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8250, 14.4160 at 3 km depth.

The earthquake was located by: Sala Operativa INGV-OV (Napoli).

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 5 27671 42311
Pollena Trocchia NA 5 13562 55873
Portici NA 5 55274 111147
Somma Vesuviana NA 5 35233 146380
Torre del Greco NA 6 86275 232655
Ottaviano NA 6 23860 256515
Ercolano NA 6 53709 310224
Cercola NA 6 18267 328491
Trecase NA 6 9097 337588
Boscotrecase NA 7 10363 347951
San Giorgio a Cremano NA 7 45557 393508
Terzigno NA 7 18968 412476
Boscoreale NA 7 28072 440548
San Giuseppe Vesuviano NA 8 30657 471205
Torre Annunziata NA 8 42789 513994
Volla NA 9 23755 537749
Pomigliano d'Arco NA 9 39922 577671
Castello di Cisterna NA 10 7869 585540
San Gennaro Vesuviano NA 11 11966 597506
Brusciano NA 11 16466 613972
Poggiomarino NA 11 21976 635948
Pompei NA 11 25358 661306
Casalnuovo di Napoli NA 11 49855 711161
Mariglianella NA 12 7787 718948
Marigliano NA 12 30157 749105
Scisciano NA 12 5994 755099
San Vitaliano NA 12 6461 761560
Saviano NA 13 15982 777542
Scafati SA 13 50787 828329
Palma Campania NA 13 15978 844307
Striano NA 14 8397 852704
Casoria NA 14 77642 930346
Napoli NA 14 974074 1904420
Acerra NA 14 59573 1963993
Afragola NA 14 65057 2029050
Santa Maria la Carità NA 14 11722 2040772
Casavatore NA 15 18661 2059433
Carbonara di Nola NA 15 2429 2061862
Nola NA 15 34431 2096293
San Paolo Bel Sito NA 15 3513 2099806
Castellammare di Stabia NA 15 66466 2166272
Liveri NA 16 1607 2167879
Arzano NA 16 34886 2202765
San Marzano sul Sarno SA 16 10442 2213207
Domicella AV 16 1862 2215069
Angri SA 16 34002 2249071
Sant'Antonio Abate NA 16 19743 2268814
Cimitile NA 16 7280 2276094
San Valentino Torio SA 16 10947 2287041
Marzano di Nola AV 16 1727 2288768
Casamarciano NA 17 3289 2292057
Cardito NA 17 22755 2314812
Sarno SA 17 31529 2346341
Lettere NA 17 6188 2352529
Casola di Napoli NA 17 3898 2356427
Camposano NA 17 5333 2361760
Gragnano NA 17 29136 2390896
Caivano NA 18 37879 2428775
Frattamaggiore NA 18 30329 2459104
Vico Equense NA 18 20969 2480073
Pago del Vallo di Lauro AV 18 1830 2481903
Crispano NA 18 12354 2494257
Visciano NA 18 4454 2498711
Comiziano NA 18 1814 2500525
Grumo Nevano NA 18 18061 2518586
Sant'Egidio del Monte Albino SA 18 8909 2527495
Casandrino NA 19 14336 2541831
Corbara SA 19 2545 2544376
Pimonte NA 19 5980 2550356
Melito di Napoli NA 19 37826 2588182
Cicciano NA 19 12906 2601088
Frattaminore NA 19 16208 2617296
Lauro AV 19 3509 2620805
Tufino NA 19 3776 2624581
Sant'Antimo NA 19 33905 2658486
Pagani SA 20 35834 2694320
Taurano AV 20 1546 2695866
Orta di Atella CE 20 27191 2723057
Mugnano di Napoli NA 20 34828 2757885
Meta NA 20 8015 2765900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km E of Portici (55274 inhabitants)
6 Km NE of Torre del Greco (86275 inhabitants)
6 Km E of Ercolano (53709 inhabitants)
13 Km NW of Scafati (50787 inhabitants)
14 Km E of Napoli (974074 inhabitants)
14 Km SE of Casoria (77642 inhabitants)
14 Km S of Acerra (59573 inhabitants)
14 Km SE of Afragola (65057 inhabitants)
15 Km NW of Castellammare di Stabia (66466 inhabitants)
21 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 NW of Cava de' Tirreni (53659 inhabitants)
29 Km S of Caserta (76326 inhabitants)
33 Km NW of Salerno (135261 inhabitants)
34 Km W of Avellino (54857 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
Rev200
Md 0.5 2018-05-11
17:30:12
40.825 14.416 3 2018-05-11
19:30:53
Sala Operativa INGV-OV (Napoli) 56768631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-11 17:30:12 ± 0
Latitude 40.8250
Longitude 14.4160
Depth (km) 3 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV
Event type earthquake
Origin ID 56768631

Uncertainty

Field Value
Preferred uncertainty description
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 0.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information

Md:0.5

Field Value
Value 0.5
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 56768631
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2018-05-11 19:30:53
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