Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 05-12-2021 and time 18:04:59 (Italy) in region 2 km E Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 2 km E Monte Cavallo (MC), on

  • 05-12-2021 17:04:59 (UTC)
  • 05-12-2021 18:04:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9970, 13.0230 at 13 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.

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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 2 145 145
Pieve Torina MC 6 1458 1603
Fiordimonte MC 7 202 1805
Pievebovigliana MC 9 866 2671
Visso MC 9 1107 3778
Muccia MC 10 915 4693
Serravalle di Chienti MC 10 1070 5763
Ussita MC 11 444 6207
Fiastra MC 12 559 6766
Acquacanina MC 13 121 6887
Preci PG 13 724 7611
Sellano PG 14 1079 8690
Castelsantangelo sul Nera MC 16 281 8971
Camerino MC 16 6974 15945
Bolognola MC 17 142 16087
Sefro MC 18 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
57 Km NE of Terni (111501 inhabitants)
67 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 inhabitants)
99 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
Reviewed
Rev100 		ML 1.0 2021-12-05
17:04:59		 42.9968 13.0232 13 2021-12-05
17:11:37		 Sala Sismica INGV-Roma 98184181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-05 17:04:59 ± 0.06
Latitude 42.9968 ± 0.0027
Longitude 13.0232 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98184181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 17
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 121
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 98184181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-05 17:11:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-12-05T17:05:09.76 0.6 undecidable manual S 280 29.9478 95 -0.03 47
IV.PF6.EHZ. 2021-12-05T17:05:07.31 0.6 undecidable manual S 42 20.868 101 -0.08 48
IV.MC2.EHZ. 2021-12-05T17:05:06.56 0.6 undecidable manual S 125 16.4724 109 0.31 46
IV.NRCA.HHZ. 2021-12-05T17:05:06.65 0.6 undecidable manual S 158 19.5693 103 -0.39 45
IV.CSP1.EHZ. 2021-12-05T17:05:06.69 0.6 undecidable manual S 54 18.0708 105 0.03 49
IV.GAVE.HNE. 2021-12-05T17:05:06.34 0.1 undecidable manual P 197 35.4423 94 0.15 94
IV.SNTG.HHZ. 2021-12-05T17:05:05.24 0.3 undecidable manual P 347 29.3484 96 -0.03 71
IV.ASSB.HHZ. 2021-12-05T17:05:05.26 0.1 undecidable manual P 280 29.9478 95 -0.1 93
IV.MML1.EHZ. 2021-12-05T17:05:05.49 0.6 undecidable manual S 342 13.5753 117 -0.04 49
IV.FDMO.HHZ. 2021-12-05T17:05:04.02 0.6 undecidable manual S 50 6.7932 144 -0.13 49
IV.CESI.HHZ. 2021-12-05T17:05:04.71 0.6 undecidable manual S 275 9.6792 131 0.05 49
IV.MML1.EHZ. 2021-12-05T17:05:03.02 0.6 negative manual P 342 13.5753 117 0.12 48
IT.MTCL.HGZ. 2021-12-05T17:05:03.39 0.6 undecidable manual S 260 1.998 169 -0.24 48
IV.MC2.EHZ. 2021-12-05T17:05:03.45 1.0 undecidable manual P 125 16.4724 109 0.14 24
IV.NRCA.HHZ. 2021-12-05T17:05:03.63 0.6 undecidable manual P 158 19.5693 103 -0.14 47
IV.FEMA.HNZ. 2021-12-05T17:05:03.98 0.6 undecidable manual S 151 4.3956 156 0.15 49
IV.PF6.EHZ. 2021-12-05T17:05:03.84 0.1 undecidable manual P 42 20.868 101 -0.13 95
IV.CSP1.EHZ. 2021-12-05T17:05:03.81 0.6 undecidable manual P 54 18.0708 105 0.25 47
IV.FDMO.HHZ. 2021-12-05T17:05:02.24 0.1 negative manual P 50 6.7932 144 0.13 97
IV.CESI.HHZ. 2021-12-05T17:05:02.54 0.1 negative manual P 275 9.6792 131 0.14 97
IV.FEMA.HNZ. 2021-12-05T17:05:01.90 0.1 undecidable manual P 151 4.3956 156 -0.02 100
IT.MTCL.HGZ. 2021-12-05T17:05:01.74 0.1 undecidable manual P 260 1.998 169 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 0.000074793675 0.1664 AML other m 2021-12-05T17:05:04.29
IV.FDMO.HHN. ML:0.8 0.000087 0.18 AML other m 2021-12-05T17:05:04.32
IV.CESI.HHE. ML:0.8 0.00006905 0.2 AML other m 2021-12-05T17:05:04.88
IV.CESI.HHN. ML:0.9 0.000089 0.18 AML other m 2021-12-05T17:05:04.90
IV.NRCA.HHN. ML:1.3 0.00013900000000000002 1.88 AML other m 2021-12-05T17:05:06.00
IV.NRCA.HHE. ML:1.2 0.00010800000000000001 0.08 AML other m 2021-12-05T17:05:06.95
IV.CESI.HNE. ML:0.9 0.00008975892500000001 0.5888 AML other m 2021-12-05T17:05:06.94
IV.MML1.EHE. ML:0.6 0.000035241265 0.256 AML other m 2021-12-05T17:05:05.87
IV.MML1.EHN. ML:0.8 0.000052581749999999995 0.2176 AML other m 2021-12-05T17:05:06.72
IV.MML1.HNE. ML:0.9 0.00007875678999999999 0.7424 AML other m 2021-12-05T17:05:10.20
IV.MC2.EHN. ML:0.9 0.0000580009725 0.2176 AML other m 2021-12-05T17:05:07.97
IV.NRCA.HNE. ML:1.2 0.00011454105 0.576 AML other m 2021-12-05T17:05:06.18
IV.CSP1.EHE. ML:1.1 0.00008676651 0.1024 AML other m 2021-12-05T17:05:06.98
IV.CSP1.EHN. ML:1.1 0.00009383394 0.1408 AML other m 2021-12-05T17:05:06.90
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