Earthquake with magnitude of Md 1.1 on date 23-11-2021 and time 02:56:37 (UTC) in region Vesuvio

A magnitude Md 1.1 earthquake occured in region: Vesuvio, on

  • 23-11-2021 02:56:37 (UTC)
  • 23-11-2021 03:56:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.817, 14.431 at 0 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
Boscotrecase NA 5 10363 10363
Trecase NA 5 9097 19460
Ottaviano NA 5 23860 43320
Massa di Somma NA 6 5444 48764
San Sebastiano al Vesuvio NA 6 9196 57960
Terzigno NA 6 18968 76928
Boscoreale NA 6 28072 105000
Somma Vesuviana NA 6 35233 140233
Sant'Anastasia NA 6 27671 167904
Torre del Greco NA 6 86275 254179
Pollena Trocchia NA 6 13562 267741
Portici NA 7 55274 323015
Torre Annunziata NA 7 42789 365804
San Giuseppe Vesuviano NA 7 30657 396461
Ercolano NA 7 53709 450170
Cercola NA 8 18267 468437
San Giorgio a Cremano NA 8 45557 513994
Poggiomarino NA 10 21976 535970
Pompei NA 10 25358 561328
San Gennaro Vesuviano NA 10 11966 573294
Volla NA 10 23755 597049
Pomigliano d'Arco NA 11 39922 636971
Scafati SA 11 50787 687758
Castello di Cisterna NA 11 7869 695627
Brusciano NA 12 16466 712093
Palma Campania NA 12 15978 728071
Scisciano NA 12 5994 734065
Marigliano NA 12 30157 764222
Mariglianella NA 12 7787 772009
Striano NA 12 8397 780406
Saviano NA 13 15982 796388
San Vitaliano NA 13 6461 802849
Santa Maria la Carità NA 13 11722 814571
Casalnuovo di Napoli NA 13 49855 864426
Carbonara di Nola NA 14 2429 866855
San Marzano sul Sarno SA 14 10442 877297
Castellammare di Stabia NA 14 66466 943763
Angri SA 14 34002 977765
Sant'Antonio Abate NA 14 19743 997508
San Paolo Bel Sito NA 15 3513 1001021
San Valentino Torio SA 15 10947 1011968
Nola NA 15 34431 1046399
Domicella AV 15 1862 1048261
Liveri NA 15 1607 1049868
Acerra NA 15 59573 1109441
Napoli NA 15 974074 2083515
Casoria NA 15 77642 2161157
Afragola NA 16 65057 2226214
Lettere NA 16 6188 2232402
Marzano di Nola AV 16 1727 2234129
Casola di Napoli NA 16 3898 2238027
Cimitile NA 16 7280 2245307
Sarno SA 16 31529 2276836
Gragnano NA 16 29136 2305972
Casavatore NA 16 18661 2324633
Casamarciano NA 17 3289 2327922
Sant'Egidio del Monte Albino SA 17 8909 2336831
Vico Equense NA 17 20969 2357800
Corbara SA 17 2545 2360345
Arzano NA 17 34886 2395231
Pago del Vallo di Lauro AV 17 1830 2397061
Pimonte NA 17 5980 2403041
Camposano NA 18 5333 2408374
Visciano NA 18 4454 2412828
Pagani SA 18 35834 2448662
Comiziano NA 18 1814 2450476
Lauro AV 18 3509 2453985
Cardito NA 18 22755 2476740
Cicciano NA 19 12906 2489646
Taurano AV 19 1546 2491192
Quindici AV 19 1938 2493130
Caivano NA 19 37879 2531009
Meta NA 19 8015 2539024
Frattamaggiore NA 19 30329 2569353
Tufino NA 19 3776 2573129
Nocera Inferiore SA 20 46043 2619172
Crispano NA 20 12354 2631526
Grumo Nevano NA 20 18061 2649587

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km NE of Torre del Greco (86275 inhabitants)
7 Km E of Portici (55274 inhabitants)
7 Km E of Ercolano (53709 inhabitants)
11 Km NW of Scafati (50787 inhabitants)
14 Km N of Castellammare di Stabia (66466 inhabitants)
15 Km SE of Acerra (59573 inhabitants)
15 Km E of Napoli (974074 inhabitants)
15 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 NW of Cava de' Tirreni (53659 inhabitants)
29 Km E of Pozzuoli (81661 inhabitants)
30 Km S of Caserta (76326 inhabitants)
32 Km NW 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
Md 1.1 2021-11-23
02:56:37
40.8172 14.4313 0 2021-11-23
03:02:50
Sala Operativa INGV-OV (Napoli) 97706271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-23 02:56:37
Latitude 40.8172
Longitude 14.4313
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 97706271

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
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) 40
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
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) 0.15
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:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 97706271
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2021-11-23 03:02:50
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