Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 28-04-2023 and time 06:32:39 (Italy) in region 4 km NW Monte Cavallo (MC)

A magnitude ML 1.4 earthquake occured in region: 4 km NW Monte Cavallo (MC), on

  • 28-04-2023 04:32:39 (UTC)
  • 28-04-2023 06:32:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0200, 12.9760 at 14 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
Monte Cavallo MC 4 145 145
Serravalle di Chienti MC 6 1070 1215
Pieve Torina MC 7 1458 2673
Muccia MC 9 915 3588
Fiordimonte MC 10 202 3790
Pievebovigliana MC 10 866 4656
Visso MC 13 1107 5763
Sefro MC 14 422 6185
Fiastra MC 15 559 6744
Camerino MC 15 6974 13718
Sellano PG 15 1079 14797
Ussita MC 16 444 15241
Acquacanina MC 16 121 15362
Preci PG 16 724 16086
Pioraco MC 18 1134 17220
Nocera Umbra PG 18 5839 23059
Valtopina PG 19 1398 24457
Fiuminata MC 19 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
98 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 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 2023-04-28
04:32:39		 43.0197 12.9762 14 2024-03-01
17:18:08		 Bollettino Sismico Italiano INGV 117374961
Reviewed
Rev100 		ML 1.4 2023-04-28
04:32:39		 43.0127 12.9683 12 2023-04-28
04:36:56		 Sala Sismica INGV-Roma 116820581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-28 04:32:39 ± 0.03
Latitude 43.0197 ± 0.0018
Longitude 12.9762 ± 0.0025
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117374961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 199
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.65740
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 117374961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-05-15 09:02:01

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 116820581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-28 04:36:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2023-04-28T04:32:54.63 0.3 undecidable manual S 174 46.5201 94 0.16 67
IV.MOMA.HHZ. 2023-04-28T04:32:53.30 0.3 undecidable manual S 234 40.7259 95 0.37 65
IV.CING.HHZ. 2023-04-28T04:32:53.82 0.3 undecidable manual S 24 43.3233 95 0.22 67
IV.MPAG.EHZ. 2023-04-28T04:32:52.12 1.0 undecidable manual P 346 69.8745 93 0.36 21
IV.NARO.HHZ. 2023-04-28T04:32:52.38 0.6 positive manual P 334 72.9714 92 0.15 43
IV.EL6.EHZ. 2023-04-28T04:32:51.66 0.6 undecidable manual S 16 35.8419 96 0.04 47
IV.PIEI.HHZ. 2023-04-28T04:32:51.36 0.1 undecidable manual P 328 67.377 93 -0.03 89
IV.FOSV.EHZ. 2023-04-28T04:32:51.37 0.3 undecidable manual S 330 35.1426 97 -0.07 70
IV.GAVE.EHZ. 2023-04-28T04:32:51.97 0.3 undecidable manual S 190 36.9297 96 0.05 70
IV.GUMA.HHZ. 2023-04-28T04:32:50.65 0.3 undecidable manual S 81 29.5482 99 0.7 59
IV.ATCC.EHZ. 2023-04-28T04:32:50.98 0.6 undecidable manual S 304 32.8449 97 0.15 47
IV.RM33.EHZ. 2023-04-28T04:32:50.01 0.1 undecidable manual P 161 59.8956 93 -0.22 87
IV.MMO1.EHZ. 2023-04-28T04:32:50.47 0.3 undecidable manual S 115 31.4463 98 0 71
7F.SIB3.EHZ. 2023-04-28T04:32:49.76 0.6 undecidable manual S 124 28.749 99 0.01 48
IV.SNTG.HHZ. 2023-04-28T04:32:49.09 0.3 undecidable manual S 354 26.2515 101 -0.01 72
IV.ATFO.HHZ. 2023-04-28T04:32:48.93 0.3 negative manual P 320 50.5161 94 0.15 67
IV.MURB.HHZ. 2023-04-28T04:32:48.18 0.6 undecidable manual P 307 45.4212 94 0.18 45
IV.ASSB.HHZ. 2023-04-28T04:32:48.90 0.3 undecidable manual S 276 25.8519 101 -0.09 70
IV.SMA1.EHZ. 2023-04-28T04:32:48.75 0.6 undecidable manual P 146 52.1034 94 -0.28 44
IV.NRCA.HHZ. 2023-04-28T04:32:48.19 0.6 undecidable manual S 151 23.4543 103 -0.19 47
IV.SSFR.HHZ. 2023-04-28T04:32:48.59 0.6 positive manual P 341 48.8178 94 0.07 46
IV.CING.HHZ. 2023-04-28T04:32:47.74 0.1 positive manual P 24 43.3233 95 0.07 92
IV.LNSS.HHZ. 2023-04-28T04:32:47.95 0.3 undecidable manual P 174 46.5201 94 -0.22 67
IV.CSP1.EHZ. 2023-04-28T04:32:47.46 0.6 undecidable manual S 67 20.1687 107 -0.06 48
IV.MOMA.HHZ. 2023-04-28T04:32:47.31 0.1 undecidable manual P 234 40.7259 95 0.02 93
IV.PF6.EHZ. 2023-04-28T04:32:47.54 0.6 undecidable manual S 53 22.0668 105 -0.45 44
IV.FOSV.EHZ. 2023-04-28T04:32:46.31 0.1 undecidable manual P 330 35.1426 97 -0.11 92
IV.GAVE.EHZ. 2023-04-28T04:32:46.65 0.1 undecidable manual P 190 36.9297 96 -0.05 94
IV.EL6.EHZ. 2023-04-28T04:32:46.47 0.1 undecidable manual P 16 35.8419 96 -0.06 93
IV.ATCC.EHZ. 2023-04-28T04:32:46.19 1.0 positive manual P 304 32.8449 97 0.12 23
IV.SEF1.HNZ. 2023-04-28T04:32:45.89 0.6 undecidable manual S 351 14.2746 120 -0.19 47
IV.MMO1.EHZ. 2023-04-28T04:32:45.84 0.3 negative manual P 115 31.4463 98 -0.02 72
IV.GUMA.HHZ. 2023-04-28T04:32:45.90 0.3 negative manual P 81 29.5482 99 0.34 67
IV.MML1.EHZ. 2023-04-28T04:32:45.17 0.6 undecidable manual S 358 10.3785 132 -0.07 48
7F.SIB3.EHZ. 2023-04-28T04:32:45.25 0.1 undecidable manual P 124 28.749 99 -0.2 93
IV.SNTG.HHZ. 2023-04-28T04:32:44.91 0.1 undecidable manual P 354 26.2515 101 -0.16 93
IV.CSP1.EHZ. 2023-04-28T04:32:44.19 0.1 undecidable manual P 67 20.1687 107 0.03 97
IV.CESI.HHZ. 2023-04-28T04:32:44.49 0.6 undecidable manual S 254 5.994 150 -0.02 49
IV.NRCA.HHZ. 2023-04-28T04:32:44.60 0.1 undecidable manual P 151 23.4543 103 -0.05 96
IV.PF6.EHZ. 2023-04-28T04:32:44.36 0.1 undecidable manual P 53 22.0668 105 -0.07 96
IV.FDMO.HHZ. 2023-04-28T04:32:44.87 0.3 undecidable manual S 78 9.1797 137 -0.14 72
IV.ASSB.HHZ. 2023-04-28T04:32:44.97 0.3 positive manual P 276 25.8519 101 -0.04 71
IV.FEMA.HNZ. 2023-04-28T04:32:44.87 0.6 undecidable manual S 137 8.7801 139 -0.06 49
IV.SEF1.HNZ. 2023-04-28T04:32:43.32 0.1 undecidable manual P 351 14.2746 120 0 98
IT.MTCL.HGZ. 2023-04-28T04:32:43.97 0.6 undecidable manual S 147 3.3966 163 -0.26 47
IV.MML1.EHZ. 2023-04-28T04:32:42.95 0.3 undecidable manual P 358 10.3785 132 0.11 73
IT.MTCL.HGZ. 2023-04-28T04:32:42.26 0.1 undecidable manual P 147 3.3966 163 0 100
IV.FEMA.HNZ. 2023-04-28T04:32:42.78 0.1 undecidable manual P 137 8.7801 139 0.12 97
IV.CESI.HHZ. 2023-04-28T04:32:42.52 0.1 undecidable manual P 254 5.994 150 0.1 98
IV.FDMO.HHZ. 2023-04-28T04:32:42.73 0.1 undecidable manual P 78 9.1797 137 0.02 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.9 0.000919 0.44 AML other m 2023-04-28T04:32:44.56
IV.CESI.HNE. ML:1.8 0.000861 0.08 AML other m 2023-04-28T04:32:44.56
IV.CESI.HNN. ML:2.0 0.001105 0.18 AML other m 2023-04-28T04:32:44.68
IV.CESI.HHN. ML:2.0 0.00113 0.18 AML other m 2023-04-28T04:32:44.68
IV.FDMO.HHN. ML:1.9 0.0008275 0.42 AML other m 2023-04-28T04:32:45.06
IV.FDMO.HHE. ML:1.7 0.000575 0.4 AML other m 2023-04-28T04:32:45.04
IV.MML1.HNN. ML:1.6 0.0004305 0.1 AML other m 2023-04-28T04:32:45.43
IV.MML1.EHN. ML:1.6 0.000446 0.1 AML other m 2023-04-28T04:32:45.48
IV.MML1.HNE. ML:1.8 0.000626 0.1 AML other m 2023-04-28T04:32:45.59
IV.MML1.EHE. ML:1.8 0.0006374999999999999 0.1 AML other m 2023-04-28T04:32:45.59
IV.NRCA.HHE. ML:1.8 0.0003795 0.18 AML other m 2023-04-28T04:32:48.44
IV.NRCA.HHN. ML:1.9 0.0005304999999999999 0.12 AML other m 2023-04-28T04:32:48.42
IV.SNTG.HHN. ML:1.2 0.00009135 0.74 AML other m 2023-04-28T04:32:49.41
IV.ASSB.HHN. ML:1.3 0.00010065 1.08 AML other m 2023-04-28T04:32:49.14
IV.ASSB.HHE. ML:1.2 0.00009470000000000001 1.16 AML other m 2023-04-28T04:32:49.12
IV.SNTG.HHE. ML:1.1 0.0000715 1.4 AML other m 2023-04-28T04:32:49.13
IV.GUMA.HHE. ML:1.7 0.00022999999999999998 0.22 AML other m 2023-04-28T04:32:50.91
IV.MMO1.EHN. ML:1.4 0.00011374999999999999 1.5 AML other m 2023-04-28T04:32:51.80
IV.MMO1.EHE. ML:1.4 0.0001026 1.52 AML other m 2023-04-28T04:32:51.22
IV.GUMA.HHN. ML:1.5 0.0001435 0.26 AML other m 2023-04-28T04:32:51.60
IV.FOSV.EHN. ML:1.2 0.00005765 1.78 AML other m 2023-04-28T04:32:51.92
IV.FOSV.EHE. ML:1.0 0.00003795 1.68 AML other m 2023-04-28T04:32:51.99
IV.GAVE.EHN. ML:1.4 0.00008824999999999999 1.1 AML other m 2023-04-28T04:32:53.09
IV.GAVE.EHE. ML:1.5 0.00010449999999999999 0.12 AML other m 2023-04-28T04:32:53.86
IV.CING.HHN. ML:1.1 0.00003345 0.88 AML other m 2023-04-28T04:32:54.26
IV.CING.HHE. ML:1.1 0.00003795 0.6 AML other m 2023-04-28T04:32:54.35
IV.MURB.HHE. ML:1.4 0.0000699 0.64 AML other m 2023-04-28T04:32:55.71
IV.MURB.HHN. ML:1.4 0.00006284999999999998 0.48 AML other m 2023-04-28T04:32:55.96
IV.ATFO.HHE. ML:1.0 0.000027250000000000005 0.82 AML other m 2023-04-28T04:32:56.73
IV.SSFR.HHN. ML:1.4 0.00006465 0.36 AML other m 2023-04-28T04:32:56.68
IV.ATFO.HHN. ML:0.9 0.000018849999999999997 1.48 AML other m 2023-04-28T04:32:57.93
IV.SMA1.EHN. ML:1.2 0.000034200000000000005 1.72 AML other m 2023-04-28T04:32:57.01
IV.SSFR.HHE. ML:1.5 0.00007505000000000001 0.2 AML other m 2023-04-28T04:32:58.88
IV.RM33.EHN. ML:1.0 0.000021499999999999997 0.44 AML other m 2023-04-28T04:32:59.73
IV.RM33.EHE. ML:1.2 0.000032850000000000006 1.82 AML other m 2023-04-28T04:33:00.03
IV.SMA1.EHE. ML:1.2 0.00003465 0.42 AML other m 2023-04-28T04:33:00.32
IV.PIEI.HHN. ML:0.9 0.0000157 1 AML other m 2023-04-28T04:33:01.29
IV.PIEI.HHE. ML:1.2 0.000023199999999999998 0.44 AML other m 2023-04-28T04:33:01.36
IV.MPAG.EHN. ML:1.0 0.00001655 0.18 AML other m 2023-04-28T04:33:03.16
IV.MPAG.EHE. ML:1.1 0.000017849999999999997 0.14 AML other m 2023-04-28T04:33:03.29
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