Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 30-07-2021 and time 19:46:07 (Italy) in region 5 km E Minturno (LT)

A magnitude ML 1.8 earthquake occured in region: 5 km E Minturno (LT), on

  • 30-07-2021 17:46:07 (UTC)
  • 30-07-2021 19:46:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.2540, 13.8060 at 4 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Minturno LT 5 19783 19783
Santi Cosma e Damiano LT 5 6897 26680
Castelforte LT 5 4386 31066
Cellole CE 7 7830 38896
Spigno Saturnia LT 8 2961 41857
Coreno Ausonio FR 11 1644 43501
Sessa Aurunca CE 11 21727 65228
Ausonia FR 12 2619 67847
Vallemaio FR 13 937 68784
Sant'Andrea del Garigliano FR 13 1505 70289
Castelnuovo Parano FR 15 883 71172
Roccamonfina CE 15 3511 74683
Falciano del Massico CE 15 3695 78378
Galluccio CE 16 2154 80532
Sant'Ambrogio sul Garigliano FR 16 966 81498
Carinola CE 17 7283 88781
Formia LT 17 38127 126908
Sant'Apollinare FR 17 1919 128827
Mondragone CE 17 28624 157451
San Giorgio a Liri FR 17 3164 160615
Rocca d'Evandro CE 18 3283 163898
Conca della Campania CE 18 1239 165137
Esperia FR 18 3828 168965

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NW of Aversa (53047 inhabitants)
48 Km W of Caserta (76326 inhabitants)
49 Km NW of Giugliano in Campania (122974 inhabitants)
51 Km NW of Marano di Napoli (59874 inhabitants)
51 Km NW of Pozzuoli (81661 inhabitants)
56 Km NW of Afragola (65057 inhabitants)
56 Km NW of Casoria (77642 inhabitants)
58 Km NW of Acerra (59573 inhabitants)
59 Km NW of Napoli (974074 inhabitants)
66 Km NW of Portici (55274 inhabitants)
67 Km NW of Ercolano (53709 inhabitants)
70 Km NW of Torre del Greco (86275 inhabitants)
79 Km E of Latina (125985 inhabitants)
83 Km NW of Scafati (50787 inhabitants)
83 Km W of Benevento (60091 inhabitants)
84 Km NW of Castellammare di Stabia (66466 inhabitants)
91 Km W of Avellino (54857 inhabitants)
97 Km NW of Cava de' Tirreni (53659 inhabitants)
98 Km SE of Velletri (53303 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
Bulletin
Rev1000 		ML 1.8 2021-07-30
17:46:07		 41.2542 13.8063 4 2021-12-29
11:12:16		 Bollettino Sismico Italiano INGV 93556711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-30 17:46:07 ± 0.14
Latitude 41.2542 ± 0.0063
Longitude 13.8063 ± 0.0060
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93556711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 669
Semi-minor axis of confidence ellipse (meter) 445
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 35
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.23652
Epicentral distance of station farthest from the epicenter (degree) 0.92810
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 93556711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-02 10:50:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACR.HNN. 2021-07-30T17:46:34.00 0.6 undecidable manual S 78 76.5678 50 2.22 0
IV.LATB.EHZ. 2021-07-30T17:46:31.10 0.6 undecidable manual S 291 75.1692 50 -0.29 0
IV.VITU.HHZ. 2021-07-30T17:46:30.90 0.6 undecidable manual S 96 69.1752 50 1.1 0
IV.GIUL.HHZ. 2021-07-30T17:46:26.60 0.6 undecidable manual S 306 56.9985 50 0.06 36
IV.POFI.HNE. 2021-07-30T17:46:25.40 0.6 undecidable manual S 351 52.0035 50 0.19 48
IV.CERT.HNE. 2021-07-30T17:46:24.59 0.6 undecidable manual P 319 103.0191 50 -0.93 0
IV.PTQR.HHZ. 2021-07-30T17:46:24.64 0.3 undecidable manual P 339 91.5417 50 0.89 0
IV.LRP.EHZ. 2021-07-30T17:46:24.10 0.6 undecidable manual S 337 47.2194 95 0.31 48
IV.TST01.HHZ. 2021-07-30T17:46:22.50 0.6 undecidable manual P 41 73.0713 50 1.6 0
IV.BSSO.HHE. 2021-07-30T17:46:22.25 0.3 undecidable manual P 63 73.0713 50 1.35 0
IV.INTR.HHE. 2021-07-30T17:46:22.32 0.6 undecidable manual P 6 84.4488 50 -0.33 0
IV.SACR.HNN. 2021-07-30T17:46:22.07 0.6 undecidable manual P 78 76.5678 50 0.63 0
IV.VITU.HHZ. 2021-07-30T17:46:21.57 0.3 undecidable manual P 96 69.1752 50 1.27 0
IV.VAGA.HHZ. 2021-07-30T17:46:21.20 0.6 undecidable manual S 63 39.8268 96 -0.03 51
IV.VCRE.HHN. 2021-07-30T17:46:21.72 1.0 undecidable manual P 133 71.1732 50 1.11 0
IV.VBKN.HHE. 2021-07-30T17:46:21.13 0.6 undecidable manual P 132 70.2741 50 0.66 0
IV.PTRJ.HNN. 2021-07-30T17:46:20.12 0.3 undecidable manual P 78 61.3941 50 1.01 21
IV.LATB.EHZ. 2021-07-30T17:46:20.59 0.3 undecidable manual P 291 75.1692 50 -0.63 0
IV.PAOL.HHN. 2021-07-30T17:46:20.64 0.3 undecidable manual P 111 68.1762 50 0.49 1
IV.LIK.EHN.01 2021-07-30T17:46:19.58 0.6 undecidable manual S 323 34.1436 97 0.33 47
IV.VVLD.HHZ. 2021-07-30T17:46:19.96 0.3 undecidable manual P 348 69.9744 50 -0.46 0
IV.VENT.EHZ. 2021-07-30T17:46:19.36 0.3 undecidable manual P 212 60.2952 50 0.43 33
IV.RNI2.HNE. 2021-07-30T17:46:19.85 0.6 undecidable manual P 30 57.498 50 1.35 21
IV.PIGN.HHZ. 2021-07-30T17:46:18.40 0.6 undecidable manual S 101 31.746 97 -0.03 51
IV.MIDA.HNZ. 2021-07-30T17:46:18.22 0.3 undecidable manual P 41 56.8986 50 -0.19 53
IV.POFI.HNE. 2021-07-30T17:46:17.33 0.3 undecidable manual P 351 52.0035 50 -0.32 69
IV.GIUL.HHZ. 2021-07-30T17:46:17.89 0.3 undecidable manual P 306 56.9985 50 -0.53 49
IV.MCI.EHZ. 2021-07-30T17:46:16.30 0.6 undecidable manual S 1 26.2515 99 -0.25 48
IV.SGG.HHN. 2021-07-30T17:46:16.78 0.6 undecidable manual P 73 49.9167 50 -0.56 45
IV.LRP.EHZ. 2021-07-30T17:46:16.65 0.3 undecidable manual P 337 47.2194 95 -0.18 74
IV.CERA.HHZ. 2021-07-30T17:46:16.17 0.3 undecidable manual P 25 42.0246 96 0.39 70
IV.VAGA.HHZ. 2021-07-30T17:46:15.18 0.3 undecidable manual P 63 39.8268 96 -0.17 74
IV.LIK.EHN.01 2021-07-30T17:46:14.08 0.3 undecidable manual P 323 34.1436 97 -0.13 74
IV.PIGN.HHZ. 2021-07-30T17:46:13.84 0.3 undecidable manual P 101 31.746 97 0.1 75
IV.MCI.EHZ. 2021-07-30T17:46:12.57 0.1 undecidable manual P 1 26.2515 99 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCI.EHN. ML:2.2 0.0009462539999999999 0.2048 AML other m 2021-07-30T17:46:19.03
IV.MCI.EHE. ML:2.3 0.00117 0.18 AML other m 2021-07-30T17:46:17.82
IV.PIGN.HNE. ML:1.7 0.0002324717 0.3712 AML other m 2021-07-30T17:46:19.23
IV.PIGN.HHE. ML:1.7 0.0002595 0.36 AML other m 2021-07-30T17:46:19.22
IV.PIGN.HHN. ML:1.7 0.0002465 0.48 AML other m 2021-07-30T17:46:19.36
IV.PIGN.HNN. ML:1.7 0.00022424450000000002 0.3968 AML other m 2021-07-30T17:46:19.37
IV.VAGA.HHE. ML:1.4 0.00008299052499999999 0.32 AML other m 2021-07-30T17:46:22.23
IV.VAGA.HHN. ML:1.8 0.00021400000000000002 0.24 AML other m 2021-07-30T17:46:24.32
IV.CERA.HHN. ML:1.9 0.0002855 0.4 AML other m 2021-07-30T17:46:25.78
IV.GIUL.HHE. ML:1.5 0.00006568548 0.4224 AML other m 2021-07-30T17:46:30.70
IV.VENT.EHE. ML:1.9 0.0001515 0.32 AML other m 2021-07-30T17:46:31.23
IV.CERA.HHE. ML:1.7 0.00016066095 0.64 AML other m 2021-07-30T17:46:31.42
IV.VENT.EHN. ML:2.0 0.00019800000000000002 0.32 AML other m 2021-07-30T17:46:31.38
IV.GIUL.HHN. ML:1.5 0.00006430331 0.2816 AML other m 2021-07-30T17:46:33.33
IV.VITU.HHN. ML:1.9 0.000136 0.3 AML other m 2021-07-30T17:46:36.40
IV.VITU.HHE. ML:1.8 0.0001105 0.42 AML other m 2021-07-30T17:46:39.19
IV.VAGA.HNN. ML:1.8 0.00020246895 0.256 AML other m 2021-07-30T17:46:24.45
IV.VAGA.HNE. ML:1.6 0.00013315165 0.3456 AML other m 2021-07-30T17:46:23.35
IV.CERA.HNN. ML:1.9 0.00027783555 0.3968 AML other m 2021-07-30T17:46:25.78
IV.CERA.HNE. ML:1.9 0.00024766275000000004 0.64 AML other m 2021-07-30T17:46:25.02
IV.LATB.EHE. ML:1.2 0.000022869374999999997 0.4352 AML other m 2021-07-30T17:46:34.70
IV.LATB.EHN. ML:1.0 0.000013463244999999998 0.3712 AML other m 2021-07-30T17:46:33.77
IV.VBKN.HHE. ML:2.5 0.0005830338500000001 0.2688 AML other m 2021-07-30T17:46:35.65
IV.VBKN.HHN. ML:2.3 0.00033059534999999994 0.3072 AML other m 2021-07-30T17:46:34.57
IV.VITU.HNN. ML:2.2 0.00029618801 0.256 AML other m 2021-07-30T17:46:37.21
IV.VCRE.HHN. ML:2.5 0.000515564 1.0368 AML other m 2021-07-30T17:46:37.05
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