Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 25-04-2023 and time 13:23:08 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 25-04-2023 11:23:08 (UTC)
  • 25-04-2023 13:23:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.3780, 14.3930 at 9 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km S of Castellammare di Stabia (66466 inhabitants)
43 Km S of Scafati (50787 inhabitants)
45 Km SW of Cava de' Tirreni (53659 inhabitants)
46 Km S of Torre del Greco (86275 inhabitants)
46 Km SW of Salerno (135261 inhabitants)
48 Km S of Ercolano (53709 inhabitants)
50 Km S of Portici (55274 inhabitants)
53 Km S of Napoli (974074 inhabitants)
56 Km W of Battipaglia (50786 inhabitants)
58 Km SE of Pozzuoli (81661 inhabitants)
59 Km S of Casoria (77642 inhabitants)
61 Km S of Marano di Napoli (59874 inhabitants)
61 Km S of Afragola (65057 inhabitants)
63 Km S of Acerra (59573 inhabitants)
63 Km S of Giugliano in Campania (122974 inhabitants)
68 Km S of Aversa (53047 inhabitants)
69 Km SW of Avellino (54857 inhabitants)
78 Km S of Caserta (76326 inhabitants)
90 Km SW of Benevento (60091 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 2.5 2023-04-25
11:23:08		 40.3777 14.3932 9 2023-04-25
11:49:59		 Sala Sismica INGV-Roma 116733651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-25 11:23:08 ± 0.32
Latitude 40.3777 ± 0.0153
Longitude 14.3932 ± 0.0201
Depth (km) 9 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116733651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2270
Semi-minor axis of confidence ellipse (meter) 920
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 2270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.28513
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 64
Type of magnitude ML
Reference to an origin 116733651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-25 11:49:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.RRL.HHZ. 2023-04-25T11:24:59.93 3.0 undecidable manual Pn 8.8 0
CH.MUGIO.HHZ. 2023-04-25T11:24:50.82 3.0 undecidable manual Pn 4.74 0
IV.PANTE.HHZ. 2023-04-25T11:24:47.72 3.0 undecidable manual Sn -1.91 0
SI.ROSI.HHZ. 2023-04-25T11:24:45.73 3.0 negative manual Pn -2.73 0
SI.KOSI.HHZ. 2023-04-25T11:24:44.28 3.0 negative manual Pn 1.78 0
SI.ABSI.HHZ. 2023-04-25T11:24:43.34 3.0 negative manual P -2.78 0
ST.RONC.EHZ. 2023-04-25T11:24:42.83 3.0 undecidable manual P 3.74 0
IV.MABI.HHZ. 2023-04-25T11:24:41.13 3.0 undecidable manual P 0.66 0
ST.OZOL.EHZ. 2023-04-25T11:24:40.52 3.0 negative manual Pn -2.29 0
OX.MARN.HHZ. 2023-04-25T11:24:40.46 3.0 undecidable manual Pn 7.97 0
GU.RORO.HHZ. 2023-04-25T11:24:34.79 3.0 undecidable manual Pn 0.43 0
MN.TRI.HHZ. 2023-04-25T11:24:24.25 3.0 undecidable manual Pn -3.54 0
IV.CSNT.HHZ. 2023-04-25T11:24:13.09 3.0 undecidable manual Pg 7.2 0
IV.RIBO.EHZ.01 2023-04-25T11:24:13.36 3.0 undecidable manual Pg 11.66 0
IV.SFI.EHZ. 2023-04-25T11:24:07.87 3.0 positive manual Pn -0.37 0
IV.HLNI.HHZ. 2023-04-25T11:24:06.55 3.0 undecidable manual Pg 15.62 0
7C.SPAOL.HNZ. 2023-04-25T11:23:58.48 3.0 undecidable manual Pg 9.77 0
IV.SPS2.HHZ. 2023-04-25T11:23:40.63 3.0 negative manual Pn 3.28 0
IV.AMUR.HHZ. 2023-04-25T11:23:39.73 3.0 positive manual Pn 0.87 0
IV.PIGN.HHZ. 2023-04-25T11:23:37.03 0.3 undecidable manual S 349 92.9403 50 1.15 50
IV.SNAL.HHZ. 2023-04-25T11:23:36.34 0.6 undecidable manual S 48 91.7415 50 0.8 40
IX.SRN3.HHE.02 2023-04-25T11:23:36.17 1.0 undecidable manual S 82 90.7425 50 0.9 19
IV.MRVN.HHZ. 2023-04-25T11:23:35.75 3.0 negative manual Pn -0.18 0
IV.MELA.HHZ. 2023-04-25T11:23:34.83 3.0 negative manual P -0.07 0
IV.SGO.HNN. 2023-04-25T11:23:33.14 1.0 undecidable manual S 75 79.7646 50 0.79 20
IV.CDRU.HHZ. 2023-04-25T11:23:32.19 0.6 undecidable manual S 81 77.9664 50 0.32 48
IV.GRIS.HNE. 2023-04-25T11:23:32.92 1.0 undecidable manual P 119 142.6461 50 1.14 15
IV.IST3.HHZ. 2023-04-25T11:23:32.98 3.0 undecidable manual P 0
IV.BSSO.HHZ. 2023-04-25T11:23:31.14 1.0 undecidable manual P 7 130.6692 50 1.2 15
IV.CERA.HHZ. 2023-04-25T11:23:31.57 3.0 negative manual Pn 0.21 0
MN.CUC.HHZ. 2023-04-25T11:23:31.34 3.0 undecidable manual Pg 2.42 0
IV.SIRI.HHZ. 2023-04-25T11:23:30.64 3.0 positive manual Pn 1.36 0
IV.VAGA.HHZ. 2023-04-25T11:23:29.70 3.0 negative manual Pn 0.91 0
IV.MTSN.HHN. 2023-04-25T11:23:28.38 0.6 undecidable manual P 96 115.4955 50 0.78 38
IX.MNT3.EHZ.02 2023-04-25T11:23:28.96 0.6 undecidable manual S 45 72.5718 50 -1.47 29
IV.MCEL.HNZ. 2023-04-25T11:23:28.99 1.0 undecidable manual P 92 119.1918 50 0.82 19
IV.MRLC.HHZ. 2023-04-25T11:23:26.80 0.6 undecidable manual P 65 101.4207 50 1.37 29
IV.CAAM.HNE. 2023-04-25T11:23:25.58 0.6 undecidable manual S 337 53.4021 50 0.25 51
IV.PSB1.HHZ. 2023-04-25T11:23:25.61 0.6 undecidable manual P 20 100.122 50 0.38 45
IV.MGR.HNE. 2023-04-25T11:23:25.36 0.1 undecidable manual P 105 101.8203 50 -0.12 95
IV.PIGN.HHZ. 2023-04-25T11:23:24.41 0.3 undecidable manual P 349 92.9403 50 0.29 70
IV.MRB1.HHZ. 2023-04-25T11:23:24.44 0.6 undecidable manual P 30 95.7264 50 -0.11 48
IV.VTIR.HHZ. 2023-04-25T11:23:23.87 0.3 undecidable manual S 3 47.619 50 0.11 79
IV.SNAL.HHZ. 2023-04-25T11:23:23.58 0.6 undecidable manual P 48 91.7415 50 -0.35 46
IV.BULG.HHZ. 2023-04-25T11:23:23.81 1.0 undecidable manual P 111 89.7435 50 0.18 24
IX.SRN3.HHE.02 2023-04-25T11:23:23.58 0.1 undecidable manual P 82 90.7425 50 -0.2 95
IV.MCRV.HHZ. 2023-04-25T11:23:22.00 0.6 undecidable manual P 55 79.2651 50 -0.01 51
IV.SGO.HNN. 2023-04-25T11:23:21.97 0.3 undecidable manual P 75 79.7646 50 -0.12 74
IV.CDRU.HHZ. 2023-04-25T11:23:21.72 0.1 positive manual P 81 77.9664 50 -0.09 100
IV.CMPR.HHZ. 2023-04-25T11:23:21.48 0.3 undecidable manual P 95 77.1672 50 -0.21 73
IV.PTMR.HHZ. 2023-04-25T11:23:20.86 3.0 undecidable manual P 0
IX.MNT3.EHZ.02 2023-04-25T11:23:20.00 0.1 undecidable manual P 45 72.5718 50 -0.98 76
IV.CAAM.HNE. 2023-04-25T11:23:18.34 0.6 undecidable manual P 337 53.4021 50 0.31 50
IV.VBKE.HHN. 2023-04-25T11:23:17.07 0.3 undecidable manual P 4 49.1175 50 -0.29 76
IV.VCRE.HHN. 2023-04-25T11:23:17.15 0.3 undecidable manual P 4 49.1175 50 -0.21 77
IV.VTIR.HHZ. 2023-04-25T11:23:16.58 0.1 undecidable manual P 3 47.619 50 -0.55 95
IV.VTRZ.HHE. 2023-04-25T11:23:16.58 0.3 undecidable manual P 8 48.2184 50 -0.64 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VTIR.HHN. ML:0.0 0.0011098685000000001 0.3008 AML other m 2023-04-25T11:23:29.96
IV.VTIR.HHE. ML:0.0 0.0013459238 0.16 AML other m 2023-04-25T11:23:26.38
IV.CMPR.HHN. ML:2.4 0.00034550000000000005 0.34 AML other m 2023-04-25T11:23:34.05
IV.CDRU.HHN. ML:2.3 0.00030475095 0.2816 AML other m 2023-04-25T11:23:34.99
IV.CDRU.HNN. ML:2.3 0.00030712830000000004 0.2624 AML other m 2023-04-25T11:23:34.99
IV.CDRU.HHE. ML:2.4 0.0003558398 0.2368 AML other m 2023-04-25T11:23:34.09
IV.CDRU.HNE. ML:2.4 0.00033293075 0.2432 AML other m 2023-04-25T11:23:34.09
IV.MCRV.HHN. ML:2.8 0.0008319542499999999 0.2432 AML other m 2023-04-25T11:23:35.36
IV.MCRV.HHE. ML:2.7 0.0006730000000000001 0.54 AML other m 2023-04-25T11:23:35.36
IV.CMPR.HHE. ML:2.4 0.0003421597 0.4224 AML other m 2023-04-25T11:23:39.20
MN.CUC.HNE. ML:2.6 0.00026700000000000004 1.16 AML other m 2023-04-25T11:23:37.97
IV.PIGN.HHN. ML:2.6 0.0005204999999999999 1.48 AML other m 2023-04-25T11:23:38.74
IV.PIGN.HNN. ML:2.7 0.0005675208 0.6528 AML other m 2023-04-25T11:23:37.75
IV.PIGN.HNE. ML:2.6 0.00044050000000000003 1.5 AML other m 2023-04-25T11:23:39.14
IV.PIGN.HHE. ML:2.6 0.000492 0.5 AML other m 2023-04-25T11:23:39.65
IV.PSB1.HHE. ML:2.5 0.00031319655000000004 0.6784 AML other m 2023-04-25T11:23:41.38
IV.PSB1.HHN. ML:2.6 0.000374 0.74 AML other m 2023-04-25T11:23:43.51
IV.MRLC.HHN. ML:2.5 0.00031800000000000003 0.48 AML other m 2023-04-25T11:23:43.70
IV.MRLC.HHE. ML:2.3 0.000211 1.64 AML other m 2023-04-25T11:23:44.15
IV.BULG.HHE. ML:2.4 0.00030075770000000004 0.4608 AML other m 2023-04-25T11:23:45.86
IV.BULG.HNE. ML:2.4 0.00027846970000000007 0.4608 AML other m 2023-04-25T11:23:45.87
IV.SNAL.HHE. ML:2.7 0.0005535 0.72 AML other m 2023-04-25T11:23:46.62
IV.SNAL.HNE. ML:2.7 0.0005515 0.72 AML other m 2023-04-25T11:23:46.62
IV.BSSO.HHE. ML:2.4 0.00017549999999999998 1.38 AML other m 2023-04-25T11:23:51.74
IV.SNAL.HHN. ML:2.7 0.0006427787 1.0048 AML other m 2023-04-25T11:23:51.84
IV.SNAL.HNN. ML:2.7 0.000605 1 AML other m 2023-04-25T11:23:51.84
IV.BULG.HHN. ML:2.6 0.0005114999999999999 0.72 AML other m 2023-04-25T11:23:52.07
IV.BULG.HNN. ML:2.6 0.000494 0.72 AML other m 2023-04-25T11:23:52.07
MN.CUC.HHE. ML:2.3 0.00013818269999999998 0.7616 AML other m 2023-04-25T11:23:38.37
IV.VAGA.HHE. ML:2.4 0.000182 1.02 AML other m 2023-04-25T11:23:53.59
IV.VAGA.HNE. ML:2.4 0.00018815000000000002 1.04 AML other m 2023-04-25T11:23:53.60
IV.VAGA.HHN. ML:2.5 0.00023786669999999998 0.3968 AML other m 2023-04-25T11:23:53.61
IV.VAGA.HNN. ML:2.5 0.0002385 0.4 AML other m 2023-04-25T11:23:53.61
IV.MELA.HHE. ML:2.7 0.0002345 1.54 AML other m 2023-04-25T11:23:54.91
IV.SIRI.HNE. ML:2.3 0.0001387444 0.3008 AML other m 2023-04-25T11:23:59.10
IV.SIRI.HNN. ML:2.2 0.00011549999999999999 0.78 AML other m 2023-04-25T11:23:55.61
IV.SIRI.HHN. ML:2.3 0.0001245 0.4 AML other m 2023-04-25T11:23:56.29
IV.SIRI.HHE. ML:2.3 0.00014337454999999998 0.3584 AML other m 2023-04-25T11:23:53.85
IV.MRVN.HHE. ML:2.3 0.00008444999999999999 0.48 AML other m 2023-04-25T11:23:59.19
IV.CERA.HHE. ML:2.4 0.0001354872 0.6208 AML other m 2023-04-25T11:24:01.62
IV.MRVN.HHN. ML:2.4 0.00009850000000000001 0.48 AML other m 2023-04-25T11:23:59.74
MN.CUC.HHN. ML:2.2 0.00011738145 0.3968 AML other m 2023-04-25T11:24:00.19
MN.CUC.HNN. ML:2.3 0.00013754407 0.4416 AML other m 2023-04-25T11:23:59.47
IV.CERA.HHN. ML:2.4 0.0001450611 0.5568 AML other m 2023-04-25T11:24:05.61
IV.PSB1.HNN. ML:2.6 0.0004396027 1.6704 AML other m 2023-04-25T11:24:02.18
IV.PSB1.HNE. ML:2.9 0.0007719119000000001 1.5488 AML other m 2023-04-25T11:24:02.24
IV.MELA.HHN. ML:2.8 0.0002615 0.74 AML other m 2023-04-25T11:24:03.98
IV.BSSO.HHN. ML:2.4 0.00017099999999999998 0.74 AML other m 2023-04-25T11:24:04.61
IV.SPS2.HHN. ML:2.1 0.000033849999999999996 1.2 AML other m 2023-04-25T11:24:20.77
IV.SPS2.HHE. ML:1.9 0.000023950000000000003 0.58 AML other m 2023-04-25T11:24:26.55
IV.CMPR.HNE. ML:2.4 0.0003279501 0.4032 AML other m 2023-04-25T11:23:39.20
IV.CMPR.HNN. ML:3.0 0.0013645405 1.056 AML other m 2023-04-25T11:23:36.85
IV.MRLC.HNE. ML:2.0 0.00010355055 0.3776 AML other m 2023-04-25T11:23:44.16
IV.MRLC.HNN. ML:2.2 0.00014913359999999998 0.4608 AML other m 2023-04-25T11:23:43.94
IV.BSSO.HNE. ML:2.4 0.00016545300000000003 0.6016 AML other m 2023-04-25T11:23:51.75
IV.BSSO.HNN. ML:2.4 0.00016498035 0.8 AML other m 2023-04-25T11:24:04.63
IV.CERA.HNE. ML:2.4 0.00013440379999999998 0.5376 AML other m 2023-04-25T11:23:56.57
IV.CERA.HNN. ML:2.4 0.0001578625 0.8704 AML other m 2023-04-25T11:24:05.62
IV.MELA.HNE. ML:2.8 0.00025754195 0.448 AML other m 2023-04-25T11:23:53.92
IV.MELA.HNN. ML:2.7 0.0002337338 1.0496 AML other m 2023-04-25T11:24:17.12
IV.AMUR.HNE. ML:2.4 0.00006886196999999999 0.384 AML other m 2023-04-25T11:24:03.00
IV.AMUR.HNN. ML:2.4 0.00006811403 0.6656 AML other m 2023-04-25T11:24:02.99
IV.AMUR.HHE. ML:2.3 0.00006512854 0.4416 AML other m 2023-04-25T11:24:03.02
IV.AMUR.HHN. ML:2.2 0.000054048004999999995 0.3776 AML other m 2023-04-25T11:24:12.89
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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