Earthquake with magnitude of ML 1.2 on date 30-12-2021 and time 16:45:07 (Italy) in region 3 km NW Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 3 km NW Monte Cavallo (MC), on

  • 30-12-2021 15:45:07 (UTC)
  • 30-12-2021 16:45:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0180, 12.9820 at 12 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.

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 6 1458 1603
Serravalle di Chienti MC 7 1070 2673
Muccia MC 9 915 3588
Fiordimonte MC 9 202 3790
Pievebovigliana MC 10 866 4656
Visso MC 13 1107 5763
Fiastra MC 14 559 6322
Sefro MC 15 422 6744
Camerino MC 15 6974 13718
Sellano PG 15 1079 14797
Ussita MC 15 444 15241
Acquacanina MC 16 121 15362
Preci PG 16 724 16086
Pioraco MC 18 1134 17220
Nocera Umbra PG 19 5839 23059
Valtopina PG 19 1398 24457
Fiuminata MC 20 1402 25859
Castelsantangelo sul Nera MC 20 281 26140

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
49 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
71 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
Reviewed
Rev100
ML 1.2 2021-12-30
15:45:07
43.0182 12.9818 12 2021-12-30
15:50:41
Sala Sismica INGV-Roma 99157601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-30 15:45:07 ± 0.05
Latitude 43.0182 ± 0.0018
Longitude 12.9818 ± 0.0025
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 99157601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 225
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 64
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) 105
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.44247
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 99157601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-30 15:50:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-12-30T15:45:18.52 0.6 undecidable manual S 304 33.3444 94 0.12 47
IV.SNTG.HHZ. 2021-12-30T15:45:16.57 0.6 undecidable manual S 353 26.4513 95 -0.01 48
IV.NRCA.HHZ. 2021-12-30T15:45:15.50 0.6 undecidable manual S 152 23.1546 97 -0.19 47
IV.SSFR.HHZ. 2021-12-30T15:45:15.99 1.0 positive manual P 341 49.1175 92 -0.04 23
IV.CSP1.EHZ. 2021-12-30T15:45:14.84 0.6 undecidable manual S 66 19.869 100 0.02 49
IV.ATCC.EHZ. 2021-12-30T15:45:13.55 1.0 undecidable manual P 304 33.3444 94 -0.04 24
IV.MML1.EHZ. 2021-12-30T15:45:12.39 0.6 undecidable manual S 356 10.5783 126 -0.14 48
IV.ASSB.HHZ. 2021-12-30T15:45:12.36 1.0 positive manual P 276 26.3514 95 -0.16 23
IV.FDMO.HHE. 2021-12-30T15:45:12.11 0.6 undecidable manual S 77 8.7801 133 -0.05 49
IV.SNTG.HHZ. 2021-12-30T15:45:12.45 0.6 negative manual P 353 26.4513 95 -0.09 47
IV.MC2.EHZ. 2021-12-30T15:45:11.81 1.0 undecidable manual P 125 20.5683 99 0.17 23
IV.CSP1.EHZ. 2021-12-30T15:45:11.60 0.1 negative manual P 66 19.869 100 0.07 96
IV.CESI.HHZ. 2021-12-30T15:45:11.69 0.6 undecidable manual S 257 6.3936 144 -0.05 49
IV.NRCA.HHZ. 2021-12-30T15:45:11.94 0.1 positive manual P 152 23.1546 97 -0.09 96
IV.MML1.EHZ. 2021-12-30T15:45:10.30 1.0 undecidable manual P 356 10.5783 126 0.09 24
IV.FEMA.HNZ. 2021-12-30T15:45:10.09 0.1 undecidable manual P 138 8.2806 136 0.15 96
IV.FDMO.HHE. 2021-12-30T15:45:10.02 0.1 undecidable manual P 77 8.7801 133 0.03 99
IV.CESI.HHZ. 2021-12-30T15:45:09.81 0.1 undecidable manual P 257 6.3936 144 0.05 99
IT.MTCL.HGZ. 2021-12-30T15:45:09.49 0.1 undecidable manual P 152 3.0969 162 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.3 0.0002325 0.06 AML other m 2021-12-30T15:45:11.72
IV.CESI.HHN. ML:1.4 0.000332 0.14 AML other m 2021-12-30T15:45:11.89
IV.MML1.EHN. ML:1.0 0.0001134 0.08 AML other m 2021-12-30T15:45:12.67
IV.MML1.EHE. ML:1.2 0.0001585 0.1 AML other m 2021-12-30T15:45:12.78
IV.NRCA.HHN. ML:1.3 0.0001119 0.46 AML other m 2021-12-30T15:45:15.70
IV.NRCA.HHE. ML:1.3 0.000126 1.28 AML other m 2021-12-30T15:45:16.08
IV.SSFR.HHN. ML:1.0 0.00002495 0.46 AML other m 2021-12-30T15:45:26.36
IV.SSFR.HHE. ML:0.8 0.00001464375 0.2048 AML other m 2021-12-30T15:45:23.97
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