Earthquake with magnitude of ML 0.3 on date 21-04-2023 and time 02:48:36 (Italy) in region 1 km SE Bagnoli Irpino (AV)

A magnitude ML 0.3 earthquake occured in region: 1 km SE Bagnoli Irpino (AV), on

  • 21-04-2023 00:48:36 (UTC)
  • 21-04-2023 02:48:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.8280, 15.0790 at 15 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Bagnoli Irpino AV 1 3217 3217
Montella AV 6 7780 10997
Cassano Irpino AV 7 982 11979
Nusco AV 7 4203 16182
Acerno SA 10 2783 18965
Lioni AV 11 6201 25166
Castelfranci AV 12 2041 27207
Montemarano AV 12 2851 30058
Caposele AV 13 3483 33541
Calabritto AV 13 2391 35932
Torella dei Lombardi AV 13 2144 38076
Castelvetere sul Calore AV 14 1615 39691
Sant'Angelo dei Lombardi AV 14 4250 43941
Senerchia AV 14 842 44783
Volturara Irpina AV 15 3289 48072
Teora AV 15 1537 49609
Rocca San Felice AV 16 851 50460
Villamaina AV 16 995 51455
Paternopoli AV 17 2384 53839
Giffoni Valle Piana SA 17 12001 65840
Montecorvino Rovella SA 17 12739 78579
San Mango sul Calore AV 17 1185 79764
Morra De Sanctis AV 18 1297 81061
Serino AV 18 7034 88095
Chiusano di San Domenico AV 18 2277 90372
Guardia Lombardi AV 18 1718 92090
Campagna SA 18 16703 108793
Santa Lucia di Serino AV 18 1402 110195
Salza Irpina AV 19 772 110967
Valva SA 19 1643 112610
Sorbo Serpico AV 19 583 113193
Giffoni Sei Casali SA 19 5264 118457
Luogosano AV 19 1187 119644
Santo Stefano del Sole AV 19 2208 121852
San Michele di Serino AV 20 2530 124382
Solofra AV 20 12495 136877
Olevano sul Tusciano SA 20 6878 143755
Laviano SA 20 1438 145193
Gesualdo AV 20 3516 148709

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Battipaglia (50786 inhabitants)
26 Km E of Avellino (54857 inhabitants)
32 Km NE of Salerno (135261 inhabitants)
34 Km E of Cava de' Tirreni (53659 inhabitants)
42 Km SE of Benevento (60091 inhabitants)
47 Km E of Scafati (50787 inhabitants)
53 Km E of Castellammare di Stabia (66466 inhabitants)
60 Km E of Torre del Greco (86275 inhabitants)
61 Km E of Portici (55274 inhabitants)
61 Km E of Acerra (59573 inhabitants)
62 Km E of Ercolano (53709 inhabitants)
65 Km W of Potenza (67122 inhabitants)
66 Km E of Afragola (65057 inhabitants)
67 Km E of Casoria (77642 inhabitants)
68 Km E of Caserta (76326 inhabitants)
70 Km E of Napoli (974074 inhabitants)
75 Km E of Giugliano in Campania (122974 inhabitants)
75 Km E of Aversa (53047 inhabitants)
75 Km E of Marano di Napoli (59874 inhabitants)
81 Km SW of Foggia (151991 inhabitants)
83 Km E of Pozzuoli (81661 inhabitants)
85 Km SW of Cerignola (58396 inhabitants)
99 Km S of San Severo (53905 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
Reviewed
Rev100
ML 0.3 2023-04-21
00:48:36
40.8282 15.0792 15 2023-04-21
09:17:21
Sala Sismica INGV-Roma 116567261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-21 00:48:36 ± 0.5
Latitude 40.8282 ± 0.0162
Longitude 15.0792 ± 0.0440
Depth (km) 15 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116567261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3603
Semi-minor axis of confidence ellipse (meter) 1521
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 3600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 273
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.13850
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 116567261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-21 09:17:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNAL.HHZ. 2023-04-21T00:48:43.14 0.6 undecidable manual S 45 15.3735 123 -0.39 47
IX.SALI.HNE.01 2023-04-21T00:48:43.85 0.6 undecidable manual S 37 14.0748 126 0.59 44
IV.MCRV.HHZ. 2023-04-21T00:48:42.25 0.6 undecidable manual S 124 9.0798 142 -0.03 52
IX.NSC3.EHZ. 2023-04-21T00:48:41.62 0.6 undecidable manual S 60 4.1958 161 -0.03 52
IV.MCRV.HHZ. 2023-04-21T00:48:40.00 0.6 undecidable manual P 124 9.0798 142 0.12 50
IV.SNAL.HHZ. 2023-04-21T00:48:40.34 0.3 negative manual P 45 15.3735 123 -0.26 73
IX.SALI.HNE.01 2023-04-21T00:48:40.56 0.1 undecidable manual P 37 14.0748 126 0.12 100
IX.NSC3.EHZ. 2023-04-21T00:48:39.35 1.0 undecidable manual P 60 4.1958 161 -0.17 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCRV.HHE. ML:0.2 0.00001665 0.08 AML other m 2023-04-21T00:48:42.82
IV.MCRV.HHN. ML:0.5 0.000031849999999999995 0.12 AML other m 2023-04-21T00:48:42.87
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