Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 26-12-2021 and time 17:10:09 (Italy) in region 1 km SE Monte Cavallo (MC)

A magnitude ML 1.5 earthquake occured in region: 1 km SE Monte Cavallo (MC), on

  • 26-12-2021 16:10:09 (UTC)
  • 26-12-2021 17:10:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9830, 13.0080 at 12 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 1 145 145
Pieve Torina MC 8 1458 1603
Visso MC 9 1107 2710
Fiordimonte MC 9 202 2912
Pievebovigliana MC 11 866 3778
Serravalle di Chienti MC 11 1070 4848
Ussita MC 12 444 5292
Muccia MC 12 915 6207
Preci PG 12 724 6931
Sellano PG 12 1079 8010
Fiastra MC 14 559 8569
Acquacanina MC 15 121 8690
Castelsantangelo sul Nera MC 15 281 8971
Camerino MC 18 6974 15945
Bolognola MC 18 142 16087
Sefro MC 19 422 16509
Cerreto di Spoleto PG 20 1075 17584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
52 Km E of Perugia (166134 inhabitants)
55 Km NE of Terni (111501 inhabitants)
67 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
96 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 1.5 2021-12-26
16:10:09		 42.9827 13.0078 12 2022-03-30
13:04:42		 Bollettino Sismico Italiano INGV 102284711
Reviewed
Rev100 		ML 1.6 2021-12-26
16:10:09		 42.9827 13.0063 12 2021-12-26
16:50:30		 Sala Sismica INGV-Roma 99018941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-26 16:10:09 ± 0.04
Latitude 42.9827 ± 0.0018
Longitude 13.0078 ± 0.0037
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102284711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 22
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 246
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) 87
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
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) 0.01259
Epicentral distance of station farthest from the epicenter (degree) 0.51711
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 26
Type of magnitude ML
Reference to an origin 102284711
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-23 12:06:31

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 99018941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-26 16:50:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-12-26T16:10:22.03 0.6 undecidable manual S 307 37.3293 91 0.29 48
IV.EL6.EHZ. 2021-12-26T16:10:22.41 0.6 undecidable manual S 11 39.2274 91 0.17 49
IV.GAVE.EHZ. 2021-12-26T16:10:20.89 0.6 undecidable manual S 196 33.5442 91 0.17 50
IV.ATFO.HHZ. 2021-12-26T16:10:19.37 0.3 undecidable manual P 320 55.3002 91 0.11 72
IV.GUMA.HHZ. 2021-12-26T16:10:19.82 0.6 undecidable manual S 71 27.9498 92 0.57 45
IV.SSFR.HHZ. 2021-12-26T16:10:19.25 0.3 undecidable manual P 340 53.502 91 0.27 70
IV.SNTG.HHZ. 2021-12-26T16:10:19.87 0.6 undecidable manual S 350 30.747 92 -0.1 50
IV.ARVD.HHZ. 2021-12-26T16:10:19.50 0.3 undecidable manual P 355 57.3981 91 -0.09 72
IV.MMO1.EHZ. 2021-12-26T16:10:18.96 0.6 undecidable manual S 110 27.5502 92 -0.16 50
IV.MURB.HHZ. 2021-12-26T16:10:18.48 0.3 undecidable manual P 309 50.0166 91 0.04 74
IV.PF6.EHZ. 2021-12-26T16:10:17.57 0.6 undecidable manual S 41 22.9548 93 -0.32 49
IV.CING.HHZ. 2021-12-26T16:10:17.77 0.3 undecidable manual P 19 46.1205 91 -0.08 74
IV.LNSS.HHZ. 2021-12-26T16:10:17.20 0.1 undecidable manual P 176 42.2244 91 -0.04 100
IV.MC2.EHZ. 2021-12-26T16:10:16.24 0.3 undecidable manual S 118 16.6722 98 0 79
IV.ATCC.EHZ. 2021-12-26T16:10:16.40 0.1 undecidable manual P 307 37.3293 91 -0.09 100
IV.NRCA.HHZ. 2021-12-26T16:10:16.54 0.6 undecidable manual S 152 18.6702 95 -0.22 50
IV.EL6.EHZ. 2021-12-26T16:10:16.63 0.1 undecidable manual P 11 39.2274 91 -0.15 98
IV.CSP1.EHZ. 2021-12-26T16:10:16.97 0.6 undecidable manual S 53 20.0688 94 -0.16 51
IV.MF5.EHZ. 2021-12-26T16:10:16.76 0.3 undecidable manual P 89 36.6411 91 0.37 71
IV.ASSB.HHZ. 2021-12-26T16:10:15.02 0.3 undecidable manual P 283 29.0487 92 -0.2 74
IV.GAVE.EHZ. 2021-12-26T16:10:15.87 0.3 undecidable manual P 196 33.5442 91 -0.03 76
IV.GUMA.HHZ. 2021-12-26T16:10:15.21 0.3 undecidable manual P 71 27.9498 92 0.16 75
IV.SNTG.HHZ. 2021-12-26T16:10:15.25 0.3 undecidable manual P 350 30.747 92 -0.22 74
IV.CESI.HHZ. 2021-12-26T16:10:14.36 0.3 undecidable manual S 286 8.6802 130 0.07 80
IV.PF6.EHZ. 2021-12-26T16:10:14.13 0.3 undecidable manual P 41 22.9548 93 -0.14 76
IV.MMO1.EHZ. 2021-12-26T16:10:14.86 0.3 undecidable manual P 110 27.5502 92 -0.12 76
IV.FDMO.HHZ. 2021-12-26T16:10:14.11 0.6 undecidable manual S 47 8.7801 129 -0.19 51
IV.NRCA.HHZ. 2021-12-26T16:10:13.51 0.3 undecidable manual P 152 18.6702 95 -0.1 77
IV.CSP1.EHZ. 2021-12-26T16:10:13.82 0.3 undecidable manual P 53 20.0688 94 -0.01 79
IT.MTCL.HGZ. 2021-12-26T16:10:13.10 0.3 undecidable manual S 331 1.3986 171 -0.22 77
IV.FEMA.HNZ. 2021-12-26T16:10:13.73 0.6 undecidable manual S 124 4.0959 155 0.2 52
IV.MC2.EHZ. 2021-12-26T16:10:13.42 0.3 undecidable manual P 118 16.6722 98 0.11 77
IV.FDMO.HHZ. 2021-12-26T16:10:12.21 0.3 undecidable manual P 47 8.7801 129 0.02 80
IV.CESI.HHZ. 2021-12-26T16:10:12.30 0.3 undecidable manual P 286 8.6802 130 0.11 79
IV.FEMA.HNZ. 2021-12-26T16:10:11.98 0.3 undecidable manual P 124 4.0959 155 0.23 77
IT.MTCL.HGZ. 2021-12-26T16:10:11.68 0.3 undecidable manual P 331 1.3986 171 0.05 81
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.MTCL.HGN. ML:3.6 0.057355115 0.0512 AML other m 2021-12-26T16:10:13.27
IT.MTCL.HGE. ML:3.7 0.07664889999999999 0.0384 AML other m 2021-12-26T16:10:13.27
IV.CESI.HNE. ML:1.6 0.00045200000000000004 0.2 AML other m 2021-12-26T16:10:14.50
IV.CESI.HHE. ML:1.6 0.00044950000000000003 0.2 AML other m 2021-12-26T16:10:14.50
IV.CESI.HNN. ML:1.6 0.0005313881000000001 0.1664 AML other m 2021-12-26T16:10:14.52
IV.CESI.HHN. ML:1.6 0.0005655 0.5 AML other m 2021-12-26T16:10:14.52
IV.MC2.EHE. ML:1.4 0.00022993095 0.1152 AML other m 2021-12-26T16:10:16.79
IV.NRCA.HHN. ML:1.8 0.000439 0.08 AML other m 2021-12-26T16:10:16.94
IV.NRCA.HNN. ML:1.7 0.00039350300000000007 0.0896 AML other m 2021-12-26T16:10:16.94
IV.NRCA.HHE. ML:1.6 0.00033356209999999996 0.192 AML other m 2021-12-26T16:10:17.11
IV.NRCA.HNE. ML:1.6 0.0003075 0.12 AML other m 2021-12-26T16:10:17.19
IV.CSP1.EHN. ML:1.8 0.0005204734 0.1664 AML other m 2021-12-26T16:10:17.21
IV.CSP1.EHE. ML:1.7 0.00037856565 0.2816 AML other m 2021-12-26T16:10:17.57
IV.MC2.EHN. ML:1.7 0.000373 0.3 AML other m 2021-12-26T16:10:18.18
IV.MMO1.EHN. ML:1.0 0.000052006795 0.1024 AML other m 2021-12-26T16:10:19.40
IV.MMO1.EHE. ML:1.0 0.00004833789 0.1152 AML other m 2021-12-26T16:10:19.70
IV.GUMA.HNE. ML:1.6 0.000182685735 0.1536 AML other m 2021-12-26T16:10:19.96
IV.GUMA.HHE. ML:1.8 0.000307 0.18 AML other m 2021-12-26T16:10:19.99
IV.GUMA.HNN. ML:1.6 0.00017875905 0.1792 AML other m 2021-12-26T16:10:19.89
IV.SNTG.HHE. ML:1.3 0.00009575 0.14 AML other m 2021-12-26T16:10:20.20
IV.SNTG.HHN. ML:1.3 0.00009209999999999999 0.12 AML other m 2021-12-26T16:10:20.15
IV.ASSB.HHN. ML:0.9 0.000036506924999999996 0.0896 AML other m 2021-12-26T16:10:20.22
IV.ASSB.HHE. ML:0.8 0.00003223976500000001 0.0896 AML other m 2021-12-26T16:10:20.54
IV.GUMA.HHN. ML:1.4 0.00011840485 0.2816 AML other m 2021-12-26T16:10:21.54
IV.GAVE.EHN. ML:1.1 0.0000544 1.86 AML other m 2021-12-26T16:10:21.03
IV.GAVE.EHE. ML:1.1 0.000054800000000000004 1.48 AML other m 2021-12-26T16:10:21.24
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