Earthquake with magnitude of ML 1.1 on date 26-12-2020 and time 05:30:47 (UTC) in region 8 km W Monte Cavallo (MC)

A magnitude ML 1.1 earthquake occured in region: 8 km W Monte Cavallo (MC), on

  • 26-12-2020 05:30:47 (UTC)
  • 26-12-2020 06:30:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9690, 12.9060 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 8 145 145
Sellano PG 9 1079 1224
Serravalle di Chienti MC 12 1070 2294
Pieve Torina MC 15 1458 3752
Preci PG 15 724 4476
Visso MC 16 1107 5583
Valtopina PG 16 1398 6981
Trevi PG 16 8469 15450
Foligno PG 17 57155 72605
Cerreto di Spoleto PG 17 1075 73680
Fiordimonte MC 17 202 73882
Muccia MC 17 915 74797
Pievebovigliana MC 18 866 75663
Nocera Umbra PG 19 5839 81502
Spello PG 19 8645 90147
Ussita MC 19 444 90591
Campello sul Clitunno PG 20 2442 93033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
74 Km W of Teramo (54892 inhabitants)
80 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 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 1.1 2020-12-26
05:30:47
42.9687 12.9062 12 2020-12-26
06:50:18
Sala Sismica INGV-Roma 85722381
Reviewed
Rev100
ML 1.2 2020-12-26
05:30:47
42.9658 12.9057 12 2020-12-26
06:21:59
Sala Sismica INGV-Roma 85722331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-26 05:30:47 ± 0.07
Latitude 42.9687 ± 0.0036
Longitude 12.9062 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85722381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 394
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 32
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.28688
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 85722381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-26 06:50:18

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 85722331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-26 06:21:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2020-12-26T05:30:58.87 0.6 undecidable manual S 5 31.8459 93 0.08 48
IV.GAVE.EHZ. 2020-12-26T05:30:58.63 0.6 undecidable manual S 182 30.6471 93 0.16 47
IV.CSP1.EHZ. 2020-12-26T05:30:57.74 0.6 undecidable manual S 60 27.8499 94 0.04 48
IV.ASSB.HHZ. 2020-12-26T05:30:56.03 0.6 undecidable manual S 292 21.6672 97 -0.04 49
IV.NRCA.HHZ. 2020-12-26T05:30:55.98 0.6 undecidable manual S 131 22.5552 96 -0.33 46
IV.FDMO.HHZ. 2020-12-26T05:30:54.48 0.6 undecidable manual S 63 16.4724 104 -0.23 48
IV.SNTG.HHZ. 2020-12-26T05:30:54.05 0.1 undecidable manual P 5 31.8459 93 -0.1 95
IV.FEMA.HNE. 2020-12-26T05:30:53.41 0.6 undecidable manual S 94 11.6772 120 -0.1 49
IV.GAVE.EHZ. 2020-12-26T05:30:53.86 0.3 positive manual P 182 30.6471 93 -0.1 72
IV.CSP1.EHZ. 2020-12-26T05:30:53.54 1.0 undecidable manual P 60 27.8499 94 0.02 24
IV.NRCA.HHZ. 2020-12-26T05:30:52.66 1.0 positive manual P 131 22.5552 96 -0.06 24
IT.MTCL.HGE. 2020-12-26T05:30:52.50 0.6 undecidable manual S 70 8.0808 136 -0.25 48
IV.ASSB.HHZ. 2020-12-26T05:30:52.51 0.1 negative manual P 292 21.6672 97 -0.07 97
IV.FDMO.HHZ. 2020-12-26T05:30:51.85 1.0 undecidable manual P 63 16.4724 104 0.06 25
IV.CESI.HHZ. 2020-12-26T05:30:51.98 0.6 undecidable manual S 358 3.996 156 -0.17 49
IV.FEMA.HNE. 2020-12-26T05:30:51.26 0.1 undecidable manual P 94 11.6772 120 0.16 97
IT.MTCL.HGE. 2020-12-26T05:30:51.06 0.1 undecidable manual P 70 8.0808 136 0.4 93
IV.CESI.HHZ. 2020-12-26T05:30:50.41 0.1 positive manual P 358 3.996 156 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.000195 0.2 AML other m 2020-12-26T05:30:52.10
IV.CESI.HHN. ML:1.0 0.00014350000000000002 0.42 AML other m 2020-12-26T05:30:52.30
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