Earthquake with magnitude of ML 1.4 on date 16-04-2023 and time 21:37:19 (Italy) in region 12 km NW Valfabbrica (PG)

A magnitude ML 1.4 earthquake occured in region: 12 km NW Valfabbrica (PG), on

  • 16-04-2023 19:37:19 (UTC)
  • 16-04-2023 21:37:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2150, 12.4810 at 9 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valfabbrica PG 12 3389 3389
Perugia PG 14 166134 169523
Umbertide PG 16 16681 186204
Bastia Umbra PG 17 21874 208078
Gubbio PG 17 32216 240294
Corciano PG 18 21332 261626
Assisi PG 19 28299 289925

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NE of Perugia (166134 inhabitants)
34 Km NW of Foligno (57155 inhabitants)
56 Km SE of Arezzo (99543 inhabitants)
74 Km N of Terni (111501 inhabitants)
82 Km SW of Fano (60888 inhabitants)
85 Km SW of Pesaro (94582 inhabitants)
94 Km E of Siena (53903 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
94 Km S of Rimini (147750 inhabitants)
95 Km W of Ancona (100861 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 1.4 2023-04-16
19:37:19
43.2153 12.4807 9 2024-03-01
17:18:20
Bollettino Sismico Italiano INGV 124831901
Reviewed
Rev100
ML 1.4 2023-04-16
19:37:19
43.2198 12.4852 9 2023-04-16
19:45:43
Sala Sismica INGV-Roma 116440951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-16 19:37:19 ± 0.05
Latitude 43.2153 ± 0.0027
Longitude 12.4807 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124831901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.43797
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 116440951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-16 19:45:43

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 124831901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-24 14:42:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2023-04-16T19:37:35.25 0.6 undecidable manual S 50 48.618 50 0.38 44
IV.CAFI.HHZ. 2023-04-16T19:37:33.51 0.3 undecidable manual S 287 43.4232 50 0.03 71
IV.FRON.EHZ. 2023-04-16T19:37:32.14 0.3 undecidable manual S 30 38.9277 50 -0.14 70
IV.SNTG.HHZ. 2023-04-16T19:37:31.90 0.6 undecidable manual S 83 37.4292 50 0.02 48
IV.PIEI.HHZ. 2023-04-16T19:37:31.85 0.6 undecidable manual S 7 35.8419 50 0.41 44
IV.SSFR.HHZ. 2023-04-16T19:37:30.89 0.3 undecidable manual S 45 34.5432 50 -0.21 70
IV.ATPI.EHZ. 2023-04-16T19:37:28.62 0.6 undecidable manual S 346 26.8509 109 -0.31 46
IV.ARVD.HHZ. 2023-04-16T19:37:28.14 0.3 undecidable manual P 50 48.618 50 -0.04 70
IV.MGAB.HHZ. 2023-04-16T19:37:27.78 0.3 undecidable manual P 222 44.9217 50 0.16 69
IV.ATMI.HHZ. 2023-04-16T19:37:27.20 0.6 undecidable manual S 308 21.6672 113 -0.04 49
IV.CAFI.HHZ. 2023-04-16T19:37:27.53 0.1 undecidable manual P 287 43.4232 50 0.15 93
IV.ASSB.HHZ. 2023-04-16T19:37:27.71 0.3 undecidable manual S 143 23.9538 111 -0.28 70
IV.MML1.EHZ. 2023-04-16T19:37:27.52 0.3 undecidable manual P 106 41.3253 50 0.47 65
IV.FOSV.EHZ. 2023-04-16T19:37:27.98 0.6 undecidable manual S 69 24.3534 111 -0.12 48
IV.SNTG.HHZ. 2023-04-16T19:37:26.26 0.3 undecidable manual P 83 37.4292 50 -0.2 70
IV.ATVO.HHZ. 2023-04-16T19:37:26.48 0.3 undecidable manual S 342 19.4694 116 -0.07 74
IV.PIEI.HHZ. 2023-04-16T19:37:26.09 0.3 undecidable manual P 7 35.8419 50 -0.11 71
IV.FRON.EHZ. 2023-04-16T19:37:26.51 0.1 undecidable manual P 30 38.9277 50 -0.18 93
IV.CESI.HHZ. 2023-04-16T19:37:26.98 0.3 undecidable manual P 124 41.5251 50 -0.11 70
IV.ATFO.HHZ. 2023-04-16T19:37:26.50 0.3 undecidable manual S 24 18.2706 117 0.31 70
IV.SSFR.HHZ. 2023-04-16T19:37:25.76 0.1 undecidable manual P 45 34.5432 50 -0.25 92
IV.ATVA.EHE. 2023-04-16T19:37:25.48 0.6 undecidable manual S 294 17.2716 119 -0.4 46
IV.ASSB.HHZ. 2023-04-16T19:37:24.03 0.1 undecidable manual P 143 23.9538 111 -0.18 95
IV.ATLO.EHE. 2023-04-16T19:37:24.42 0.6 undecidable manual S 332 12.5763 127 -0.07 50
IV.FOSV.EHZ. 2023-04-16T19:37:24.21 0.1 undecidable manual P 69 24.3534 111 -0.06 98
IV.ATPI.EHZ. 2023-04-16T19:37:24.68 0.1 undecidable manual P 346 26.8509 109 -0.08 97
IV.ATCC.EHZ. 2023-04-16T19:37:24.93 0.3 undecidable manual S 105 13.2756 125 0.22 72
IV.ATVA.EHE. 2023-04-16T19:37:23.12 0.3 undecidable manual P 294 17.2716 119 0.12 73
IV.ATFO.HHZ. 2023-04-16T19:37:23.36 0.1 undecidable manual P 24 18.2706 117 0.18 96
IV.ATVO.HHZ. 2023-04-16T19:37:23.37 0.1 undecidable manual P 342 19.4694 116 -0.01 99
IV.ATMI.HHZ. 2023-04-16T19:37:23.98 0.3 undecidable manual P 308 21.6672 113 0.19 72
IV.ATCC.EHZ. 2023-04-16T19:37:22.54 0.1 undecidable manual P 105 13.2756 125 0.22 96
IV.MURB.HHZ. 2023-04-16T19:37:22.88 0.3 undecidable manual S 34 6.3936 146 -0.11 75
IV.ATLO.EHE. 2023-04-16T19:37:22.28 0.1 undecidable manual P 332 12.5763 127 0.09 99
IV.MURB.HHZ. 2023-04-16T19:37:21.42 0.1 undecidable manual P 34 6.3936 146 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HNN. ML:1.7 0.0009195 0.18 AML other m 2023-04-16T19:37:23.02
IV.MURB.HHN. ML:1.7 0.000841 1.28 AML other m 2023-04-16T19:37:23.02
IV.MURB.HHE. ML:2.1 0.002225 0.28 AML other m 2023-04-16T19:37:23.34
IV.MURB.HNE. ML:2.1 0.002085 0.3 AML other m 2023-04-16T19:37:23.49
IV.ATCC.EHN. ML:1.3 0.00022449999999999998 0.6 AML other m 2023-04-16T19:37:25.47
IV.ATCC.HNN. ML:1.5 0.000345 0.94 AML other m 2023-04-16T19:37:25.47
IV.ATCC.HNE. ML:1.5 0.00034399999999999996 0.62 AML other m 2023-04-16T19:37:25.20
IV.ATCC.EHE. ML:1.5 0.0003105 0.64 AML other m 2023-04-16T19:37:25.20
IV.ATFO.HHE. ML:1.4 0.0001825 0.86 AML other m 2023-04-16T19:37:26.37
IV.ATFO.HHN. ML:1.2 0.0001445 1.28 AML other m 2023-04-16T19:37:27.12
IV.ASSB.HHE. ML:1.2 0.00009865 1.12 AML other m 2023-04-16T19:37:28.90
IV.ASSB.HHN. ML:1.2 0.00009429999999999999 1.14 AML other m 2023-04-16T19:37:29.06
IV.SNTG.HHE. ML:1.3 0.00007264999999999999 0.42 AML other m 2023-04-16T19:37:31.22
IV.SNTG.HHN. ML:1.2 0.000055650000000000004 0.26 AML other m 2023-04-16T19:37:32.32
IV.SSFR.HHN. ML:1.5 0.000132 0.22 AML other m 2023-04-16T19:37:32.34
IV.SSFR.HHE. ML:1.4 0.00011649999999999999 0.42 AML other m 2023-04-16T19:37:32.35
IV.PIEI.HHN. ML:1.0 0.00003725 1.12 AML other m 2023-04-16T19:37:32.93
IV.PIEI.HHE. ML:1.1 0.0000436 1.4 AML other m 2023-04-16T19:37:33.77
IV.MGAB.HHN. ML:1.4 0.0000783 0.72 AML other m 2023-04-16T19:37:35.63
IV.MGAB.HHE. ML:1.3 0.0000653 0.68 AML other m 2023-04-16T19:37:35.86
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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