Earthquake with magnitude of Md 2.2 on date 23-09-2020 and time 21:45:51 (UTC) in region Vesuvio

A magnitude Md 2.2 earthquake occured in region: Vesuvio, on

  • 23-09-2020 21:45:51 (UTC)
  • 23-09-2020 23:45:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8130, 14.4120 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
Torre del Greco NA 5 86275 95471
Massa di Somma NA 5 5444 100915
Portici NA 5 55274 156189
Trecase NA 5 9097 165286
Ercolano NA 6 53709 218995
Boscotrecase NA 6 10363 229358
Pollena Trocchia NA 6 13562 242920
Sant'Anastasia NA 6 27671 270591
Somma Vesuviana NA 7 35233 305824
Torre Annunziata NA 7 42789 348613
San Giorgio a Cremano NA 7 45557 394170
Boscoreale NA 7 28072 422242
Ottaviano NA 7 23860 446102
Cercola NA 7 18267 464369
Terzigno NA 7 18968 483337
San Giuseppe Vesuviano NA 8 30657 513994
Volla NA 9 23755 537749
Pompei NA 10 25358 563107
Pomigliano d'Arco NA 11 39922 603029
Poggiomarino NA 11 21976 625005
San Gennaro Vesuviano NA 11 11966 636971
Castello di Cisterna NA 12 7869 644840
Scafati SA 12 50787 695627
Brusciano NA 12 16466 712093
Casalnuovo di Napoli NA 13 49855 761948
Mariglianella NA 13 7787 769735
Scisciano NA 13 5994 775729
Marigliano NA 13 30157 805886
Santa Maria la Carità NA 13 11722 817608
Palma Campania NA 14 15978 833586
San Vitaliano NA 14 6461 840047
Napoli NA 14 974074 1814121
Saviano NA 14 15982 1830103
Striano NA 14 8397 1838500
Castellammare di Stabia NA 14 66466 1904966
Casoria NA 15 77642 1982608
Afragola NA 15 65057 2047665
Casavatore NA 15 18661 2066326
Sant'Antonio Abate NA 15 19743 2086069
Acerra NA 15 59573 2145642
Angri SA 15 34002 2179644
San Marzano sul Sarno SA 15 10442 2190086
Carbonara di Nola NA 16 2429 2192515
Nola NA 16 34431 2226946
San Paolo Bel Sito NA 16 3513 2230459
San Valentino Torio SA 16 10947 2241406
Arzano NA 16 34886 2276292
Gragnano NA 16 29136 2305428
Casola di Napoli NA 16 3898 2309326
Lettere NA 16 6188 2315514
Liveri NA 17 1607 2317121
Vico Equense NA 17 20969 2338090
Domicella AV 17 1862 2339952
Cimitile NA 17 7280 2347232
Marzano di Nola AV 17 1727 2348959
Sarno SA 18 31529 2380488
Pimonte NA 18 5980 2386468
Cardito NA 18 22755 2409223
Sant'Egidio del Monte Albino SA 18 8909 2418132
Casamarciano NA 18 3289 2421421
Corbara SA 18 2545 2423966
Frattamaggiore NA 19 30329 2454295
Camposano NA 19 5333 2459628
Caivano NA 19 37879 2497507
Meta NA 19 8015 2505522
Pago del Vallo di Lauro AV 19 1830 2507352
Grumo Nevano NA 19 18061 2525413
Crispano NA 19 12354 2537767
Pagani SA 19 35834 2573601
Casandrino NA 19 14336 2587937
Visciano NA 19 4454 2592391
Comiziano NA 19 1814 2594205
Melito di Napoli NA 20 37826 2632031
Sant'Agnello NA 20 9122 2641153
Piano di Sorrento NA 20 13109 2654262
Frattaminore NA 20 16208 2670470
Sant'Antimo NA 20 33905 2704375

Municipalities with at least 50000 inhabitants

An earthquake occurred to
5 Km NE of Torre del Greco (86275 inhabitants)
5 Km E of Portici (55274 inhabitants)
6 Km E of Ercolano (53709 inhabitants)
12 Km NW of Scafati (50787 inhabitants)
14 Km E of Napoli (974074 inhabitants)
14 Km NW of Castellammare di Stabia (66466 inhabitants)
15 Km SE of Casoria (77642 inhabitants)
15 Km SE of Afragola (65057 inhabitants)
15 Km S of Acerra (59573 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 E of Pozzuoli (81661 inhabitants)
28 Km W of Cava de' Tirreni (53659 inhabitants)
30 Km S of Caserta (76326 inhabitants)
33 Km W of Salerno (135261 inhabitants)
34 Km W of Avellino (54857 inhabitants)
47 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 2.2 2020-09-23
21:45:51
40.8132 14.4123 1 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86701591
Reviewed
Rev200
Md 2.3 2020-09-23
21:45:51
40.8142 14.426 1 2021-01-30
01:27:31
Sala Operativa INGV_OV (Napoli) 83170931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-23 21:45:51 ± 0.23
Latitude 40.8132 ± 0.0018
Longitude 14.4123 ± 0.0059
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 86701591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 459
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 95
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 202
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 11
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.04497
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 83170931
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-09-23 22:09:41

Md:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude Md
Reference to an origin 86701591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-30 01:26:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TRI.HHZ. 2020-09-23T21:47:35.34 3.0 undecidable manual Sg -4.55 0
MN.CLTB.HHZ. 2020-09-23T21:47:27.71 3.0 undecidable manual Sn 0.67 0
IV.PANTE.HHZ. 2020-09-23T21:46:58.10 3.0 undecidable manual Pn 4.33 0
IV.MMUR.HNZ. 2020-09-23T21:46:47.68 3.0 undecidable manual Sg -0.57 0
IV.SPS2.HHZ. 2020-09-23T21:46:47.27 3.0 undecidable manual Sn -9.99 0
IV.ZCCA.HHZ. 2020-09-23T21:46:41.11 3.0 undecidable manual Pg 1.67 0
IV.FIR.HHZ. 2020-09-23T21:46:39.35 3.0 undecidable manual Pg 7.73 0
IV.ARRO.EHZ. 2020-09-23T21:46:32.53 3.0 undecidable manual Sg 0.37 0
IV.CPGN.EHZ. 2020-09-23T21:46:22.04 3.0 undecidable manual Pn -3.67 0
IV.CMPR.HHZ. 2020-09-23T21:46:06.94 3.0 undecidable manual Pg 0.68 0
IV.PTRP.HHZ. 2020-09-23T21:46:03.75 3.0 undecidable manual Pn -6.89 0
IV.VPOB.HHZ. 2020-09-23T21:45:54.05 0.3 undecidable manual P 331 4.995 106 -0.08 74
IV.CRTO.HHZ. 2020-09-23T21:45:53.53 0.6 undecidable manual S 43 1.1988 140 0.39 46
IV.VBKN.HHZ. 2020-09-23T21:45:53.83 0.6 undecidable manual S 38 2.3976 121 -0.17 48
IV.VVDG.HHE. 2020-09-23T21:45:53.97 0.3 undecidable manual S 21 2.6973 118 -0.27 71
IV.VCRE.HHZ. 2020-09-23T21:45:53.48 0.3 undecidable manual S 68 1.6983 130 -0.01 75
IV.VTIR.HHZ. 2020-09-23T21:45:52.92 0.3 undecidable manual S 129 1.2987 138 -0.26 71
IV.VCRE.HHZ. 2020-09-23T21:45:52.66 0.1 negative manual P 68 1.6983 130 0.12 98
IV.VTIR.HHZ. 2020-09-23T21:45:52.34 0.1 undecidable manual P 129 1.2987 138 -0.03 100
IV.CRTO.HHZ. 2020-09-23T21:45:52.66 0.1 negative manual P 43 1.1988 140 0.31 94
IV.MTMR.EHZ. 2020-09-23T21:45:52.60 3.0 undecidable manual P -4.21 0
IV.VBKN.HHZ. 2020-09-23T21:45:52.87 0.1 negative manual P 38 2.3976 121 0.04 100
IV.VVDG.HHE. 2020-09-23T21:45:52.88 0.1 undecidable manual P 21 2.6973 118 -0.08 99
IV.ROSPO.HHZ. 2020-09-23T21:45:48.51 3.0 negative manual P -9.99 0
IV.LPEL.HHZ. 2020-09-23T21:45:46.46 3.0 undecidable manual P -8.51 0
IV.CERA.HHZ. 2020-09-23T21:45:45.77 3.0 positive manual P 0.1 0
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
Waveforms Seismic signals in miniseed + resp format Download