Earthquake with magnitude of Md 0.4 on date 26-07-2020 and time 01:55:32 (UTC) in region 5 km SE Massa di Somma (NA)

A magnitude Md 0.4 earthquake occured in region: 5 km SE Massa di Somma (NA), on

  • 26-07-2020 01:55:32 (UTC)
  • 26-07-2020 03:55:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.82, 14.42 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
Sant'Anastasia NA 5 27671 42311
Pollena Trocchia NA 6 13562 55873
Somma Vesuviana NA 6 35233 91106
Portici NA 6 55274 146380
Trecase NA 6 9097 155477
Ottaviano NA 6 23860 179337
Boscotrecase NA 6 10363 189700
Torre del Greco NA 6 86275 275975
Ercolano NA 7 53709 329684
Terzigno NA 7 18968 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 7 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
Scafati SA 12 50787 712093
Mariglianella NA 12 7787 719880
Scisciano NA 12 5994 725874
Marigliano NA 12 30157 756031
Casalnuovo di Napoli NA 12 49855 805886
Palma Campania NA 13 15978 821864
Saviano NA 13 15982 837846
San Vitaliano NA 13 6461 844307
Striano NA 13 8397 852704
Santa Maria la Carità NA 14 11722 864426
Carbonara di Nola NA 14 2429 866855
Casoria NA 15 77642 944497
Napoli NA 15 974074 1918571
Acerra NA 15 59573 1978144
Afragola NA 15 65057 2043201
San Paolo Bel Sito NA 15 3513 2046714
Nola NA 15 34431 2081145
Castellammare di Stabia NA 15 66466 2147611
San Marzano sul Sarno SA 15 10442 2158053
Angri SA 15 34002 2192055
Sant'Antonio Abate NA 15 19743 2211798
Casavatore NA 15 18661 2230459
Liveri NA 15 1607 2232066
Domicella AV 15 1862 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
Lettere NA 17 6188 2294956
Sarno SA 17 31529 2326485
Casamarciano NA 17 3289 2329774
Casola di Napoli NA 17 3898 2333672
Gragnano NA 17 29136 2362808
Vico Equense NA 17 20969 2383777
Camposano NA 17 5333 2389110
Pago del Vallo di Lauro AV 18 1830 2390940
Cardito NA 18 22755 2413695
Sant'Egidio del Monte Albino SA 18 8909 2422604
Corbara SA 18 2545 2425149
Pimonte NA 18 5980 2431129
Visciano NA 18 4454 2435583
Comiziano NA 18 1814 2437397
Caivano NA 18 37879 2475276
Frattamaggiore NA 18 30329 2505605
Crispano NA 19 12354 2517959
Grumo Nevano NA 19 18061 2536020
Pagani SA 19 35834 2571854
Cicciano NA 19 12906 2584760
Lauro AV 19 3509 2588269
Casandrino NA 19 14336 2602605
Tufino NA 19 3776 2606381
Taurano AV 19 1546 2607927
Melito di Napoli NA 20 37826 2645753
Meta NA 20 8015 2653768
Frattaminore NA 20 16208 2669976
Quindici AV 20 1938 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 Casoria (77642 inhabitants)
15 Km E of Napoli (974074 inhabitants)
15 Km S of Acerra (59573 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
Md 0.4 2020-07-26
01:55:32
40.82 14.42 0 2020-07-26
02:39:37
Sala Operativa INGV-OV (Napoli) 81351171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-26 01:55:32
Latitude 40.82
Longitude 14.42
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV
Event type earthquake
Origin ID 81351171

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) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
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:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 81351171
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-07-26 02:39:37
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download