Earthquake with magnitude of Md 1.2 on date 22-03-2020 and time 12:05:07 (Italy) in region 5 km SE Massa di Somma (NA)

A magnitude Md 1.2 earthquake occured in region: 5 km SE Massa di Somma (NA), on

  • 22-03-2020 11:05:07 (UTC)
  • 22-03-2020 12:05:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.8230, 14.4250 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
Massa di Somma NA 5 5444 5444
San Sebastiano al Vesuvio NA 5 9196 14640
Sant'Anastasia NA 5 27671 42311
Somma Vesuviana NA 5 35233 77544
Pollena Trocchia NA 6 13562 91106
Ottaviano NA 6 23860 114966
Boscotrecase NA 6 10363 125329
Portici NA 6 55274 180603
Trecase NA 6 9097 189700
Torre del Greco NA 6 86275 275975
Terzigno NA 6 18968 294943
Ercolano NA 7 53709 348652
Boscoreale NA 7 28072 376724
Cercola NA 7 18267 394991
San Giuseppe Vesuviano NA 7 30657 425648
Torre Annunziata NA 7 42789 468437
San Giorgio a Cremano NA 8 45557 513994
Volla NA 9 23755 537749
Pomigliano d'Arco NA 10 39922 577671
San Gennaro Vesuviano NA 10 11966 589637
Poggiomarino NA 10 21976 611613
Pompei NA 10 25358 636971
Castello di Cisterna NA 11 7869 644840
Brusciano NA 11 16466 661306
Mariglianella NA 12 7787 669093
Scisciano NA 12 5994 675087
Marigliano NA 12 30157 705244
Scafati SA 12 50787 756031
Casalnuovo di Napoli NA 12 49855 805886
Palma Campania NA 12 15978 821864
Saviano NA 12 15982 837846
San Vitaliano NA 12 6461 844307
Striano NA 13 8397 852704
Santa Maria la Carità NA 14 11722 864426
Carbonara di Nola NA 14 2429 866855
Acerra NA 15 59573 926428
Nola NA 15 34431 960859
Casoria NA 15 77642 1038501
San Paolo Bel Sito NA 15 3513 1042014
Afragola NA 15 65057 1107071
Napoli NA 15 974074 2081145
San Marzano sul Sarno SA 15 10442 2091587
Castellammare di Stabia NA 15 66466 2158053
Liveri NA 15 1607 2159660
Angri SA 15 34002 2193662
Sant'Antonio Abate NA 15 19743 2213405
Domicella AV 15 1862 2215267
Casavatore NA 15 18661 2233928
San Valentino Torio SA 15 10947 2244875
Cimitile NA 16 7280 2252155
Marzano di Nola AV 16 1727 2253882
Arzano NA 16 34886 2288768
Sarno SA 16 31529 2320297
Casamarciano NA 17 3289 2323586
Lettere NA 17 6188 2329774
Casola di Napoli NA 17 3898 2333672
Gragnano NA 17 29136 2362808
Camposano NA 17 5333 2368141
Pago del Vallo di Lauro AV 17 1830 2369971
Vico Equense NA 18 20969 2390940
Cardito NA 18 22755 2413695
Sant'Egidio del Monte Albino SA 18 8909 2422604
Visciano NA 18 4454 2427058
Corbara SA 18 2545 2429603
Comiziano NA 18 1814 2431417
Pimonte NA 18 5980 2437397
Caivano NA 18 37879 2475276
Frattamaggiore NA 18 30329 2505605
Lauro AV 19 3509 2509114
Cicciano NA 19 12906 2522020
Crispano NA 19 12354 2534374
Pagani SA 19 35834 2570208
Grumo Nevano NA 19 18061 2588269
Tufino NA 19 3776 2592045
Taurano AV 19 1546 2593591
Casandrino NA 19 14336 2607927
Quindici AV 19 1938 2609865
Melito di Napoli NA 20 37826 2647691
Frattaminore NA 20 16208 2663899
Meta NA 20 8015 2671914

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)
7 Km E of Ercolano (53709 inhabitants)
12 Km NW of Scafati (50787 inhabitants)
15 Km SE of Acerra (59573 inhabitants)
15 Km SE of Casoria (77642 inhabitants)
15 Km E of Napoli (974074 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)
27 Km NW 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
Bulletin
Rev1000
Md 1.2 2020-03-22
11:05:07
40.8227 14.4247 1 2020-07-18
21:08:29
Bollettino Sismico Italiano INGV 77630571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-22 11:05:07 ± 0.12
Latitude 40.8227 ± 0.0009
Longitude 14.4247 ± 0.0024
Depth (km) 1 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77630571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 220
Semi-minor axis of confidence ellipse (meter) 14
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00270
Epicentral distance of station farthest from the epicenter (degree) 0.01709
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:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 4
Type of magnitude Md
Reference to an origin 77630571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-16 12:21:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VVDG.HHE. 2020-03-22T11:05:08.26 0.6 undecidable manual S 357 1.3986 114 -0.28 48
IV.VTIR.HHZ. 2020-03-22T11:05:08.59 0.6 undecidable manual S 181 1.8981 109 -0.32 47
IV.VBKN.HHE. 2020-03-22T11:05:08.00 0.6 undecidable manual S 28 0.8991 125 -0.1 49
IV.VTIR.HHZ. 2020-03-22T11:05:08.14 0.3 undecidable manual P 181 1.8981 109 0.06 74
IV.CRTO.HHZ. 2020-03-22T11:05:07.78 0.6 undecidable manual S 232 0.2997 159 0.09 49
IV.VCRE.HHE. 2020-03-22T11:05:07.91 0.6 undecidable manual S 125 0.6993 133 -0.02 50
IV.VVDG.HHE. 2020-03-22T11:05:07.92 0.1 undecidable manual P 357 1.3986 114 0.05 100
IV.VCRE.HHE. 2020-03-22T11:05:07.58 0.1 undecidable manual P 125 0.6993 133 0.05 100
IV.CRTO.HHZ. 2020-03-22T11:05:07.43 0.1 negative manual P 232 0.2997 159 0.04 100
IV.VBKN.HHE. 2020-03-22T11:05:07.72 0.1 undecidable manual P 28 0.8991 125 0.09 99
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