Earthquake (explosion) with magnitude of Md 1.1 on date 28-05-2020 and time 18:47:30 (UTC) in region Ischia e costa Flegrea (Napoli)

A magnitude Md 1.1 (explosion) earthquake occured in region: Ischia e costa Flegrea (Napoli), on

  • 28-05-2020 18:47:30 (UTC)
  • 28-05-2020 20:47:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.82, 14.1 at 0 km depth.

The earthquake was located by: Sala Operativa INGV-OV (Napoli).

Event type: explosion.

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
Pozzuoli NA 3 81661 81661
Bacoli NA 3 26560 108221
Monte di Procida NA 5 12886 121107
Quarto NA 8 40930 162037
Procida NA 9 10530 172567
Marano di Napoli NA 12 59874 232441
Qualiano NA 12 25702 258143
Calvizzano NA 12 12329 270472
Napoli NA 13 974074 1244546
Mugnano di Napoli NA 14 34828 1279374
Villaricca NA 14 31122 1310496
Giugliano in Campania NA 15 122974 1433470
Ischia NA 16 19915 1453385
Parete CE 16 11442 1464827
Melito di Napoli NA 16 37826 1502653
Sant'Antimo NA 17 33905 1536558
Casavatore NA 18 18661 1555219
Arzano NA 18 34886 1590105
Casamicciola Terme NA 18 8362 1598467
Casandrino NA 18 14336 1612803
Trentola-Ducenta CE 18 19429 1632232
Lusciano CE 18 15362 1647594
Casapesenna CE 19 6987 1654581
Casoria NA 19 77642 1732223
Grumo Nevano NA 19 18061 1750284
Lacco Ameno NA 19 4853 1755137
Aversa CE 19 53047 1808184
Barano d'Ischia NA 19 10113 1818297
Cesa CE 19 8841 1827138
San Marcellino CE 20 14155 1841293
San Cipriano d'Aversa CE 20 13653 1854946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
3 Km S of Pozzuoli (81661 inhabitants)
12 Km SW of Marano di Napoli (59874 inhabitants)
13 Km W of Napoli (974074 inhabitants)
15 Km SW of Giugliano in Campania (122974 inhabitants)
19 Km SW of Casoria (77642 inhabitants)
19 Km SW of Aversa (53047 inhabitants)
21 Km W of Ercolano (53709 inhabitants)
21 Km SW of Afragola (65057 inhabitants)
22 Km W of Portici (55274 inhabitants)
23 Km W of Torre del Greco (86275 inhabitants)
27 Km SW of Acerra (59573 inhabitants)
35 Km SW of Caserta (76326 inhabitants)
36 Km W of Castellammare di Stabia (66466 inhabitants)
37 Km W of Scafati (50787 inhabitants)
53 Km W of Cava de' Tirreni (53659 inhabitants)
58 Km W of Salerno (135261 inhabitants)
60 Km W of Avellino (54857 inhabitants)
67 Km SW of Benevento (60091 inhabitants)
79 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
Rev 200 Md 1.1 2020-05-28
18:47:30
40.82 14.1 0 2020-05-28
19:53:50
Sala Operativa INGV-OV (Napoli) 79664781
Rev 200 Md 1.1 2020-05-28
18:47:30
40.82 14.1 0 2020-05-28
18:57:19
Sala Operativa INGV_OV (Napoli) 79664411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-28 18:47:30
Latitude 40.82
Longitude 14.10
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-OV
Event type explosion
Origin ID 79664781

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) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
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) 0.08
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
Magnitudes information

Md:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 79664781
Agency INGV
Autore Sala Operativa INGV-OV (Napoli)
Time of creation (UTC) 2020-05-28 19:53:50

Md:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 79664411
Agency INGV
Autore Sala Operativa INGV_OV (Napoli)
Time of creation (UTC) 2020-05-28 18:57:19
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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