Earthquake with magnitude of Md 1.0 on date 27-10-2021 and time 19:42:11 (UTC) in region Vesuvio

A magnitude Md 1.0 earthquake occured in region: Vesuvio, on

  • 27-10-2021 19:42:11 (UTC)
  • 27-10-2021 21:42:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.818, 14.427 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
Massa di Somma NA 5 5444 5444
San Sebastiano al Vesuvio NA 5 9196 14640
Trecase NA 5 9097 23737
Boscotrecase NA 5 10363 34100
Ottaviano NA 6 23860 57960
Somma Vesuviana NA 6 35233 93193
Sant'Anastasia NA 6 27671 120864
Pollena Trocchia NA 6 13562 134426
Terzigno NA 6 18968 153394
Portici NA 6 55274 208668
Torre del Greco NA 6 86275 294943
Boscoreale NA 6 28072 323015
Ercolano NA 7 53709 376724
Torre Annunziata NA 7 42789 419513
San Giuseppe Vesuviano NA 7 30657 450170
Cercola NA 7 18267 468437
San Giorgio a Cremano NA 8 45557 513994
Volla NA 10 23755 537749
Poggiomarino NA 10 21976 559725
Pompei NA 10 25358 585083
San Gennaro Vesuviano NA 10 11966 597049
Pomigliano d'Arco NA 10 39922 636971
Castello di Cisterna NA 11 7869 644840
Scafati SA 11 50787 695627
Brusciano NA 12 16466 712093
Scisciano NA 12 5994 718087
Mariglianella NA 12 7787 725874
Palma Campania NA 12 15978 741852
Marigliano NA 12 30157 772009
Casalnuovo di Napoli NA 13 49855 821864
Saviano NA 13 15982 837846
San Vitaliano NA 13 6461 844307
Striano NA 13 8397 852704
Santa Maria la Carità NA 13 11722 864426
Carbonara di Nola NA 14 2429 866855
Castellammare di Stabia NA 14 66466 933321
San Marzano sul Sarno SA 14 10442 943763
Angri SA 15 34002 977765
Sant'Antonio Abate NA 15 19743 997508
Nola NA 15 34431 1031939
San Paolo Bel Sito NA 15 3513 1035452
Acerra NA 15 59573 1095025
San Valentino Torio SA 15 10947 1105972
Napoli NA 15 974074 2080046
Casoria NA 15 77642 2157688
Domicella AV 15 1862 2159550
Liveri NA 15 1607 2161157
Afragola NA 15 65057 2226214
Casavatore NA 16 18661 2244875
Marzano di Nola AV 16 1727 2246602
Cimitile NA 16 7280 2253882
Lettere NA 16 6188 2260070
Casola di Napoli NA 16 3898 2263968
Sarno SA 16 31529 2295497
Gragnano NA 16 29136 2324633
Casamarciano NA 17 3289 2327922
Arzano NA 17 34886 2362808
Vico Equense NA 17 20969 2383777
Sant'Egidio del Monte Albino SA 17 8909 2392686
Pago del Vallo di Lauro AV 17 1830 2394516
Camposano NA 18 5333 2399849
Corbara SA 18 2545 2402394
Pimonte NA 18 5980 2408374
Visciano NA 18 4454 2412828
Cardito NA 18 22755 2435583
Comiziano NA 18 1814 2437397
Pagani SA 18 35834 2473231
Lauro AV 19 3509 2476740
Caivano NA 19 37879 2514619
Frattamaggiore NA 19 30329 2544948
Cicciano NA 19 12906 2557854
Taurano AV 19 1546 2559400
Crispano NA 19 12354 2571754
Tufino NA 19 3776 2575530
Meta NA 19 8015 2583545
Quindici AV 19 1938 2585483
Grumo Nevano NA 19 18061 2603544
Casandrino NA 20 14336 2617880
Nocera Inferiore SA 20 46043 2663923

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)
11 Km NW of Scafati (50787 inhabitants)
14 Km NW 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)
15 Km SE of Afragola (65057 inhabitants)
22 Km E of Marano di Napoli (59874 inhabitants)
23 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)
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 1.0 2021-10-27
19:42:11
40.8183 14.4272 0 2021-10-27
19:50:11
Sala Operativa INGV-OV (Napoli) 97027561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-27 19:42:11
Latitude 40.8183
Longitude 14.4272
Depth (km) 0 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV#SiSmi
Event type earthquake
Origin ID 97027561

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) 100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
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) 0.09
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

Field Value
Value 1
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 97027561
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2021-10-27 19:50:11
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