Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 15-03-2023 and time 19:41:32 (UTC) in region 2 km NW Monte Cavallo (MC)

A magnitude ML 1.8 earthquake occured in region: 2 km NW Monte Cavallo (MC), on

  • 15-03-2023 19:41:32 (UTC)
  • 15-03-2023 20:41:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0090, 12.9790 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 3 145 145
Pieve Torina MC 7 1458 1603
Serravalle di Chienti MC 7 1070 2673
Fiordimonte MC 10 202 2875
Muccia MC 10 915 3790
Pievebovigliana MC 11 866 4656
Visso MC 12 1107 5763
Sellano PG 14 1079 6842
Fiastra MC 15 559 7401
Ussita MC 15 444 7845
Preci PG 15 724 8569
Sefro MC 16 422 8991
Camerino MC 16 6974 15965
Acquacanina MC 16 121 16086
Pioraco MC 19 1134 17220
Nocera Umbra PG 19 5839 23059
Valtopina PG 19 1398 24457
Castelsantangelo sul Nera MC 19 281 24738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
81 Km SW of Ancona (100861 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
93 Km S of Fano (60888 inhabitants)
97 Km NE of Viterbo (67173 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 2023-03-15
19:41:32		 43.0092 12.9788 14 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116311181
Reviewed
Rev100 		ML 1.5 2023-03-15
19:41:32		 43.0105 12.9802 13 2023-03-15
19:51:33		 Sala Sismica INGV-Roma 115404201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-15 19:41:32 ± 0.04
Latitude 43.0092 ± 0.0018
Longitude 12.9788 ± 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 116311181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 219
Semi-minor axis of confidence ellipse (meter) 28
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 30
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.02158
Epicentral distance of station farthest from the epicenter (degree) 0.54049
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116311181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-12 12:32:45

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 115404201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-15 19:51:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2023-03-15T19:41:51.03 0.6 undecidable manual S 340 59.9955 93 0.07 45
IV.ARVD.HHE. 2023-03-15T19:41:49.75 0.3 undecidable manual S 357 54.3012 94 0.31 65
IV.LNSS.HNZ. 2023-03-15T19:41:47.30 0.3 undecidable manual S 174 45.3213 95 0.25 66
IV.CING.HHZ. 2023-03-15T19:41:46.90 0.6 undecidable manual S 23 44.2224 95 0.14 46
IV.MOMA.HNZ. 2023-03-15T19:41:46.00 0.6 undecidable manual S 236 40.2264 96 0.3 44
IV.EL6.EHZ. 2023-03-15T19:41:45.07 0.3 undecidable manual S 16 36.8298 96 0.27 68
IV.ATCC.EHZ. 2023-03-15T19:41:44.26 0.6 undecidable manual S 306 33.6441 97 0.3 45
IV.FOSV.EHZ. 2023-03-15T19:41:44.47 0.6 undecidable manual S 331 36.2415 97 -0.17 46
IV.GAVE.EHZ. 2023-03-15T19:41:44.88 0.6 undecidable manual S 191 35.8419 97 0.36 44
IV.GUMA.HHZ. 2023-03-15T19:41:43.24 0.3 undecidable manual S 78 29.5482 99 0.39 67
IV.FRON.EHZ. 2023-03-15T19:41:43.04 0.3 undecidable manual P 340 59.9955 93 -0.1 67
IV.MMO1.EHZ. 2023-03-15T19:41:43.13 0.3 undecidable manual S 113 30.747 98 -0.05 71
IV.CESX.HHE. 2023-03-15T19:41:42.17 0.3 undecidable manual P 216 54.7008 94 -0.15 67
7F.SIB1.EHZ. 2023-03-15T19:41:42.21 0.6 undecidable manual S 118 26.8509 101 0.06 48
IV.SNTG.HHZ. 2023-03-15T19:41:42.16 0.3 undecidable manual S 354 27.4503 100 -0.15 70
7F.SIB3.EHZ. 2023-03-15T19:41:42.24 0.6 undecidable manual S 122 27.9498 100 -0.19 46
7F.SIB2.EHE. 2023-03-15T19:41:42.81 0.3 undecidable manual S 116 29.4483 99 -0.03 72
IV.ARVD.HHE. 2023-03-15T19:41:42.34 0.1 undecidable manual P 357 54.3012 94 0.08 91
IV.ARRO.EHZ. 2023-03-15T19:41:41.45 0.1 undecidable manual P 200 50.7159 94 -0.26 88
IV.ASSB.HHZ. 2023-03-15T19:41:41.96 0.6 undecidable manual S 278 26.2515 101 -0.03 48
IV.SSFR.HHZ. 2023-03-15T19:41:41.68 0.1 undecidable manual P 342 50.0166 94 0.08 91
IV.CSP1.EHZ. 2023-03-15T19:41:40.51 0.3 undecidable manual S 63 20.4684 107 0.01 73
IV.MTRA.EHE. 2023-03-15T19:41:40.33 0.1 undecidable manual P 129 44.0226 95 -0.35 87
IV.PF6.EHZ. 2023-03-15T19:41:40.61 0.6 undecidable manual S 51 22.5552 104 -0.42 44
IV.LNSS.HNZ. 2023-03-15T19:41:40.81 0.1 undecidable manual P 174 45.3213 95 -0.07 93
IV.NRCA.HHZ. 2023-03-15T19:41:40.91 0.6 undecidable manual S 150 22.3554 105 -0.08 48
IV.CING.HHZ. 2023-03-15T19:41:40.71 0.1 undecidable manual P 23 44.2224 95 -0.01 94
IV.MOMA.HNZ. 2023-03-15T19:41:40.16 0.1 undecidable manual P 236 40.2264 96 0.05 93
IV.GAVE.EHZ. 2023-03-15T19:41:39.53 0.3 undecidable manual P 191 35.8419 97 0.11 70
IV.EL6.EHZ. 2023-03-15T19:41:39.67 0.3 positive manual P 16 36.8298 96 0.09 70
IV.MF5.EHN. 2023-03-15T19:41:39.68 0.3 undecidable manual P 93 39.1275 96 -0.24 68
IV.FOSV.EHZ. 2023-03-15T19:41:39.48 0.1 undecidable manual P 331 36.2415 97 -0.01 95
IV.SEF1.HNZ. 2023-03-15T19:41:39.13 0.6 undecidable manual S 351 15.4734 117 -0.13 48
IV.MMO1.EHZ. 2023-03-15T19:41:38.69 0.1 undecidable manual P 113 30.747 98 0.04 95
7F.SIB2.EHE. 2023-03-15T19:41:38.43 0.1 undecidable manual P 116 29.4483 99 -0.02 96
IV.ATCC.EHZ. 2023-03-15T19:41:38.84 0.3 undecidable manual P 306 33.6441 97 -0.25 68
IV.GUMA.HHZ. 2023-03-15T19:41:38.89 0.3 undecidable manual P 78 29.5482 99 0.43 66
IV.MML1.EHZ. 2023-03-15T19:41:38.20 0.3 undecidable manual S 357 11.5773 129 -0.19 71
7F.SIB1.EHZ. 2023-03-15T19:41:38.04 0.1 undecidable manual P 118 26.8509 101 -0.01 97
IV.SNTG.HHZ. 2023-03-15T19:41:38.08 0.1 undecidable manual P 354 27.4503 100 -0.07 95
7F.SIB3.EHZ. 2023-03-15T19:41:38.11 0.1 undecidable manual P 122 27.9498 100 -0.11 95
IV.ASSB.HHZ. 2023-03-15T19:41:37.68 0.1 undecidable manual P 278 26.2515 101 -0.28 92
IV.GAG1.HNZ. 2023-03-15T19:41:37.71 0.6 undecidable manual P 16 26.3514 101 -0.28 46
IV.CSP1.EHZ. 2023-03-15T19:41:37.27 0.3 positive manual P 63 20.4684 107 0.17 71
IV.FDMO.HHZ. 2023-03-15T19:41:37.74 0.3 undecidable manual S 71 9.2796 137 -0.2 71
IV.CESI.HHZ. 2023-03-15T19:41:37.42 0.3 undecidable manual S 266 6.0939 150 0 75
IV.PF6.EHZ. 2023-03-15T19:41:37.35 0.1 undecidable manual P 51 22.5552 104 -0.06 96
IV.NRCA.HHZ. 2023-03-15T19:41:37.41 0.1 undecidable manual P 150 22.3554 105 0.02 97
IV.FEMA.HNZ. 2023-03-15T19:41:37.79 0.6 undecidable manual S 132 7.7811 143 0.11 49
IV.MML1.EHZ. 2023-03-15T19:41:36.02 0.3 positive manual P 357 11.5773 129 0.14 73
IT.MTCL.HGZ. 2023-03-15T19:41:36.77 0.3 undecidable manual S 135 2.3976 168 -0.3 71
IV.SEF1.HNZ. 2023-03-15T19:41:36.48 0.1 undecidable manual P 351 15.4734 117 0.09 97
IV.FEMA.HNZ. 2023-03-15T19:41:35.68 0.1 undecidable manual P 132 7.7811 143 0.21 96
IT.MTCL.HGZ. 2023-03-15T19:41:35.18 0.1 undecidable manual P 135 2.3976 168 0.05 100
IV.FDMO.HHZ. 2023-03-15T19:41:35.69 0.1 undecidable manual P 71 9.2796 137 0.06 99
IV.CESI.HHZ. 2023-03-15T19:41:35.51 0.1 undecidable manual P 266 6.0939 150 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.9 0.000905 0.34 AML other m 2023-03-15T19:41:37.66
IV.CESI.HNE. ML:1.8 0.0008545 0.06 AML other m 2023-03-15T19:41:37.53
IV.CESI.HHN. ML:2.2 0.0017399999999999998 0.14 AML other m 2023-03-15T19:41:37.67
IV.CESI.HNN. ML:2.1 0.001575 0.14 AML other m 2023-03-15T19:41:37.67
IV.MML1.EHN. ML:1.6 0.0003635 0.38 AML other m 2023-03-15T19:41:38.58
IV.MML1.HNN. ML:1.6 0.000397 0.36 AML other m 2023-03-15T19:41:38.58
IV.MML1.HNE. ML:1.6 0.000375 0.1 AML other m 2023-03-15T19:41:38.64
IV.MML1.EHE. ML:1.6 0.000389 0.1 AML other m 2023-03-15T19:41:38.70
IV.CSP1.EHN. ML:2.1 0.0008245 0.12 AML other m 2023-03-15T19:41:40.73
IV.CSP1.EHE. ML:2.2 0.0011385 0.08 AML other m 2023-03-15T19:41:40.79
IV.NRCA.HHN. ML:1.7 0.00033699999999999995 0.12 AML other m 2023-03-15T19:41:41.15
IV.NRCA.HHE. ML:1.8 0.00034250000000000003 0.1 AML other m 2023-03-15T19:41:41.17
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