Earthquake with magnitude of ML 1.4 on date 19-10-2020 and time 11:46:18 (UTC) in region 4 km SW Monte Cavallo (MC)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Monte Cavallo (MC), on

  • 19-10-2020 11:46:18 (UTC)
  • 19-10-2020 13:46:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 12.99 at 11 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 4 145 145
Visso MC 9 1107 1252
Sellano PG 10 1079 2331
Preci PG 10 724 3055
Pieve Torina MC 10 1458 4513
Fiordimonte MC 12 202 4715
Serravalle di Chienti MC 12 1070 5785
Ussita MC 13 444 6229
Pievebovigliana MC 14 866 7095
Muccia MC 14 915 8010
Castelsantangelo sul Nera MC 16 281 8291
Fiastra MC 16 559 8850
Cerreto di Spoleto PG 17 1075 9925
Acquacanina MC 17 121 10046

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
98 Km S of Fano (60888 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.4 2020-10-19
11:46:18
42.96 12.99 11 2020-10-19
11:50:59
Sala Sismica INGV-Roma 83910131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-19 11:46:18 ± 0.06
Latitude 42.96 ± 0.00
Longitude 12.99 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83910131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 461
Semi-minor axis of confidence ellipse (meter) 346
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 94
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.37412
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:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 83910131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-19 11:50:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-10-19T11:46:31.84 0.1 undecidable manual S 13 0.3741 50 0.2 91
IV.ATCC.EHZ. 2020-10-19T11:46:30.78 0.1 undecidable manual S 311 0.3354 50 0.29 90
IV.GAVE.EHZ. 2020-10-19T11:46:28.83 0.3 undecidable manual S 194 0.2797 50 -0.02 72
IV.ASSB.HHZ. 2020-10-19T11:46:27.58 0.6 undecidable manual S 288 0.2518 50 -0.43 44
IV.CSP1.EHZ. 2020-10-19T11:46:26.33 0.3 undecidable manual S 51 0.2041 50 -0.28 69
IV.ATCC.EHZ. 2020-10-19T11:46:25.19 1.0 positive manual P 311 0.3354 50 -0.03 24
IV.EL6.EHZ. 2020-10-19T11:46:25.57 1.0 negative manual P 13 0.3741 50 -0.31 22
IV.MC2.EHZ. 2020-10-19T11:46:25.24 0.6 undecidable manual S 110 0.1574 122 0.08 49
IV.NRCA.HHZ. 2020-10-19T11:46:24.88 0.3 undecidable manual S 144 0.161 121 -0.38 68
IV.MML1.HNE. 2020-10-19T11:46:24.69 0.3 undecidable manual S 356 0.1493 123 -0.2 71
IV.GAVE.EHZ. 2020-10-19T11:46:24.16 0.6 negative manual P 194 0.2797 50 -0.11 47
IV.FDMO.HHZ. 2020-10-19T11:46:23.30 0.1 undecidable manual S 46 0.1034 133 -0.19 96
IV.ASSB.HHZ. 2020-10-19T11:46:23.73 0.6 undecidable manual P 288 0.2518 50 -0.06 48
IV.NRCA.HHZ. 2020-10-19T11:46:22.05 0.1 positive manual P 144 0.161 121 -0.15 96
IV.CESI.HHZ. 2020-10-19T11:46:22.75 0.3 undecidable manual S 304 0.0719 143 0.07 74
IV.CSP1.EHZ. 2020-10-19T11:46:22.90 0.6 positive manual P 51 0.2041 50 -0.08 48
IV.MC2.EHZ. 2020-10-19T11:46:22.82 0.1 undecidable manual P 110 0.1574 122 0.68 83
IV.FEMA.HNN. 2020-10-19T11:46:22.33 0.1 undecidable manual S 93 0.0468 154 0.15 98
IV.MML1.HNE. 2020-10-19T11:46:21.94 0.1 undecidable manual P 356 0.1493 123 -0.05 98
IV.FDMO.HHZ. 2020-10-19T11:46:21.13 1.0 undecidable manual P 46 0.1034 133 -0.05 25
IT.MTCL.HGZ. 2020-10-19T11:46:21.79 0.1 undecidable manual S 18 0.0315 162 -0.17 98
IT.MTCL.HGZ. 2020-10-19T11:46:20.35 0.1 negative manual P 18 0.0315 162 0.06 100
IV.CESI.HHZ. 2020-10-19T11:46:20.80 0.6 undecidable manual P 304 0.0719 143 0.09 49
IV.FEMA.HNN. 2020-10-19T11:46:20.62 0.1 undecidable manual P 93 0.0468 154 0.2 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.7 0.0007585 1.88 AML other m 2020-10-19T11:46:22.01
IV.CESI.HHE. ML:1.5 0.000458 0.08 AML other m 2020-10-19T11:46:22.95
IV.FDMO.HHE. ML:1.3 0.0002275 0.14 AML other m 2020-10-19T11:46:23.54
IV.FDMO.HHN. ML:1.3 0.000224 0.14 AML other m 2020-10-19T11:46:23.68
IV.NRCA.HHN. ML:1.8 0.0005745 0.1 AML other m 2020-10-19T11:46:25.07
IV.NRCA.HHE. ML:1.6 0.000342 0.12 AML other m 2020-10-19T11:46:25.28
IV.CSP1.EHN. ML:1.6 0.000282 1.34 AML other m 2020-10-19T11:46:26.72
IV.CSP1.EHE. ML:1.4 0.000174 0.7 AML other m 2020-10-19T11:46:27.64
IV.ASSB.HHE. ML:1.1 6.28E-5 0.12 AML other m 2020-10-19T11:46:27.86
IV.ASSB.HHN. ML:1 5.045E-5 1.62 AML other m 2020-10-19T11:46:27.06
IV.GAVE.EHN. ML:1.2 6.625E-5 0.88 AML other m 2020-10-19T11:46:29.00
IV.GAVE.EHE. ML:1.3 9.53E-5 0.82 AML other m 2020-10-19T11:46:29.55
IV.FOSV.EHN. ML:1.2 5.19E-5 0.14 AML other m 2020-10-19T11:46:31.70
IV.FOSV.EHE. ML:1.4 7.655E-5 0.16 AML other m 2020-10-19T11:46:31.81
IV.EL6.EHN. ML:1.2 4.885E-5 1.22 AML other m 2020-10-19T11:46:32.90
IV.EL6.EHE. ML:1.3 6.19E-5 0.38 AML other m 2020-10-19T11:46:33.07
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download