Earthquake with magnitude of ML 1.4 on date 23-05-2023 and time 22:47:21 (Italy) in region 1 km E Pignataro Interamna (FR)

A magnitude ML 1.4 earthquake occured in region: 1 km E Pignataro Interamna (FR), on

  • 23-05-2023 20:47:21 (UTC)
  • 23-05-2023 22:47:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4370, 13.7970 at 8 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
Pignataro Interamna FR 1 2595 2595
San Giorgio a Liri FR 4 3164 5759
Sant'Apollinare FR 5 1919 7678
Cassino FR 7 36142 43820
Castelnuovo Parano FR 7 883 44703
Piedimonte San Germano FR 8 6535 51238
Sant'Ambrogio sul Garigliano FR 8 966 52204
Vallemaio FR 8 937 53141
Villa Santa Lucia FR 8 2632 55773
Sant'Andrea del Garigliano FR 9 1505 57278
Rocca d'Evandro CE 10 3283 60561
Ausonia FR 10 2619 63180
Aquino FR 10 5370 68550
Coreno Ausonio FR 10 1644 70194
Cervaro FR 10 8109 78303
Esperia FR 11 3828 82131
Pontecorvo FR 11 13242 95373
San Vittore del Lazio FR 12 2636 98009
Sant'Elia Fiumerapido FR 13 6166 104175
Terelle FR 13 422 104597
Castrocielo FR 13 3965 108562
San Pietro Infine CE 13 944 109506
Colle San Magno FR 15 699 110205
Santi Cosma e Damiano LT 15 6897 117102
Castelforte LT 15 4386 121488
Spigno Saturnia LT 15 2961 124449
Belmonte Castello FR 16 739 125188
Vallerotonda FR 16 1581 126769
Mignano Monte Lungo CE 16 3250 130019
Roccasecca FR 17 7365 137384
Galluccio CE 17 2154 139538
Viticuso FR 17 353 139891
Acquafondata FR 18 263 140154
Conca Casale IS 19 200 140354
Minturno LT 20 19783 160137
Pico FR 20 2888 163025
Villa Latina FR 20 1241 164266

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km NW of Caserta (76326 inhabitants)
62 Km NW of Aversa (53047 inhabitants)
66 Km NW of Giugliano in Campania (122974 inhabitants)
68 Km NW of Marano di Napoli (59874 inhabitants)
70 Km NW of Pozzuoli (81661 inhabitants)
72 Km NW of Afragola (65057 inhabitants)
72 Km NW of Casoria (77642 inhabitants)
73 Km NW of Acerra (59573 inhabitants)
75 Km E of Latina (125985 inhabitants)
77 Km NW of Napoli (974074 inhabitants)
83 Km NW of Portici (55274 inhabitants)
84 Km NW of Ercolano (53709 inhabitants)
87 Km NW of Torre del Greco (86275 inhabitants)
89 Km W of Benevento (60091 inhabitants)
89 Km E of Velletri (53303 inhabitants)
97 Km E of Aprilia (73446 inhabitants)
97 Km E of Anzio (54211 inhabitants)
98 Km NW of Scafati (50787 inhabitants)
101 Km NW of Castellammare di Stabia (66466 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 1.4 2023-05-23
20:47:21
41.4373 13.7972 8 2023-05-23
21:02:14
Sala Sismica INGV-Roma 117648671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-23 20:47:21 ± 0.22
Latitude 41.4373 ± 0.0108
Longitude 13.7972 ± 0.0096
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117648671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1178
Semi-minor axis of confidence ellipse (meter) 687
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.57916
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 117648671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-23 21:02:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHZ. 2023-05-23T20:47:42.62 0.6 undecidable manual S 8 64.2912 50 0.34 43
IV.RNI2.HHZ. 2023-05-23T20:47:36.05 0.3 undecidable manual S 45 41.7249 50 -0.19 70
IV.POFI.HHZ. 2023-05-23T20:47:33.68 0.3 undecidable manual S 347 31.8459 104 0.33 69
IV.INTR.HHZ. 2023-05-23T20:47:33.59 0.3 undecidable manual P 8 64.2912 50 -0.09 68
IV.CERA.HHZ. 2023-05-23T20:47:31.98 0.3 undecidable manual S 46 25.5522 107 0.73 61
IV.GIUL.HHZ. 2023-05-23T20:47:31.00 3.0 negative manual P -0.16 0
IV.LRP.EHZ. 2023-05-23T20:47:31.78 0.6 undecidable manual S 323 29.1486 105 -0.64 42
IV.RNI2.HHZ. 2023-05-23T20:47:30.16 0.6 undecidable manual P 45 41.7249 50 -0.05 48
IV.PIGN.HHZ. 2023-05-23T20:47:30.38 0.6 undecidable manual P 129 41.3253 50 0.24 46
IV.LIK.EHZ.01 2023-05-23T20:47:30.44 0.6 undecidable manual S 289 20.9679 111 0.71 41
IV.POFI.HHZ. 2023-05-23T20:47:28.27 0.3 undecidable manual P 347 31.8459 104 -0.26 70
IV.CERA.HHZ. 2023-05-23T20:47:27.02 0.1 undecidable manual P 46 25.5522 107 -0.29 94
IV.LRP.EHZ. 2023-05-23T20:47:27.56 0.6 positive manual P 323 29.1486 105 -0.44 45
IV.LIK.EHZ.01 2023-05-23T20:47:26.66 0.3 undecidable manual P 289 20.9679 111 0.22 72
IV.MCI.EHZ. 2023-05-23T20:47:25.31 0.3 undecidable manual S 12 6.0939 142 -0.12 75
IV.MCI.EHZ. 2023-05-23T20:47:23.82 0.1 negative manual P 12 6.0939 142 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERA.HHN. ML:1.7 0.000279 0.58 AML other m 2023-05-23T20:47:34.30
IV.CERA.HHE. ML:1.6 0.0002455 0.98 AML other m 2023-05-23T20:47:34.52
IV.LRP.EHE. ML:1.3 0.00010994999999999999 0.6 AML other m 2023-05-23T20:47:35.46
IV.LRP.EHN. ML:1.1 0.0000639 0.94 AML other m 2023-05-23T20:47:36.57
IV.PIGN.HHN. ML:1.2 0.00006225 0.94 AML other m 2023-05-23T20:47:38.80
IV.POFI.HHN. ML:1.1 0.00005465000000000001 0.78 AML other m 2023-05-23T20:47:39.09
IV.PIGN.HHE. ML:1.4 0.00008510000000000001 0.4 AML other m 2023-05-23T20:47:39.33
IV.RNI2.HHN. ML:1.3 0.00006755 0.92 AML other m 2023-05-23T20:47:39.42
IV.POFI.HHE. ML:1.2 0.00006565 1.6 AML other m 2023-05-23T20:47:41.17
IV.RNI2.HHE. ML:1.4 0.00007465 1.26 AML other m 2023-05-23T20:47:41.23
IV.GIUL.HHN. ML:1.1 0.000033600000000000004 0.42 AML other m 2023-05-23T20:47:43.62
IV.INTR.HHN. ML:1.6 0.00006819999999999999 0.68 AML other m 2023-05-23T20:47:47.40
IV.GIUL.HHE. ML:0.9 0.00002623975 0.7552 AML other m 2023-05-23T20:47:43.16
IV.INTR.HHE. ML:1.4 0.000046450000000000004 0.5 AML other m 2023-05-23T20:47:52.16
IV.MCI.EHE. ML:2.6 0.008508144999999998 0.2688 AML other m 2023-05-23T20:47:26.20
IV.MCI.EHN. ML:2.6 0.008070168 0.2304 AML other m 2023-05-23T20:47:26.11
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