Earthquake with magnitude of ML 0.9 on date 28-10-2020 and time 09:06:46 (Italy) in region 5 km NW Monte Cavallo (MC)

A magnitude ML 0.9 earthquake occured in region: 5 km NW Monte Cavallo (MC), on

  • 28-10-2020 08:06:46 (UTC)
  • 28-10-2020 09:06:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.02, 12.96 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 5 145 145
Serravalle di Chienti MC 5 1070 1215
Pieve Torina MC 8 1458 2673
Muccia MC 10 915 3588
Fiordimonte MC 11 202 3790
Pievebovigliana MC 11 866 4656
Sefro MC 14 422 5078
Visso MC 15 1107 6185
Camerino MC 15 6974 13159
Sellano PG 15 1079 14238
Fiastra MC 16 559 14797
Nocera Umbra PG 17 5839 20636
Ussita MC 17 444 21080
Valtopina PG 17 1398 22478
Pioraco MC 17 1134 23612
Preci PG 17 724 24336
Acquacanina MC 18 121 24457
Fiuminata MC 19 1402 25859

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
58 Km NE of Terni (111501 inhabitants)
73 Km NW of Teramo (54892 inhabitants)
80 Km SW of Ancona (100861 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
99 Km S of Pesaro (94582 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 0.9 2020-10-28
08:06:46
43.02 12.96 11 2020-10-28
08:16:11
Sala Sismica INGV-Roma 84204261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-28 08:06:46 ± 0.05
Latitude 43.02 ± 0.00
Longitude 12.96 ± 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 84204261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 321
Semi-minor axis of confidence ellipse (meter) 276
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
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
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84204261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-28 08:16:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-10-28T08:06:58.40 0.1 undecidable manual S 19 0.322 50 0.18 93
IV.SMA1.EHZ. 2020-10-28T08:06:56.35 3.0 undecidable manual P 0.04 0
IV.ASSB.HHZ. 2020-10-28T08:06:55.00 0.3 undecidable manual S 275 0.2212 50 -0.24 73
IV.NRCA.HNN. 2020-10-28T08:06:55.12 0.1 undecidable manual S 149 0.2221 50 -0.14 98
IV.SNTG.HHN. 2020-10-28T08:06:55.24 0.1 undecidable manual S 356 0.2311 50 -0.29 94
IV.CSP1.EHZ. 2020-10-28T08:06:54.28 0.1 undecidable manual S 69 0.1907 50 -0.07 99
IV.MC2.EHZ. 2020-10-28T08:06:54.75 0.3 undecidable manual S 124 0.2023 50 0.07 72
IV.TRE1.HNZ. 2020-10-28T08:06:53.24 3.0 positive manual P -0.33 0
IV.EL6.EHZ. 2020-10-28T08:06:53.26 0.3 undecidable manual P 19 0.322 50 0.13 70
IV.FDMO.HHZ. 2020-10-28T08:06:51.31 0.1 undecidable manual S 83 0.0935 136 -0.06 98
IV.SNTG.HHN. 2020-10-28T08:06:51.36 0.3 undecidable manual P 356 0.2311 50 -0.22 72
IV.ASSB.HHZ. 2020-10-28T08:06:51.22 0.6 undecidable manual P 275 0.2212 50 -0.19 49
IV.NRCA.HNN. 2020-10-28T08:06:51.31 0.1 undecidable manual P 149 0.2221 50 -0.11 98
IV.CSP1.EHZ. 2020-10-28T08:06:50.85 0.1 positive manual P 69 0.1907 50 -0.04 99
IV.MC2.EHZ. 2020-10-28T08:06:50.95 0.6 undecidable manual P 124 0.2023 50 -0.13 49
IT.MTCL.HGZ. 2020-10-28T08:06:50.22 0.1 undecidable manual S 137 0.0423 157 -0.03 100
IV.CESI.HHZ. 2020-10-28T08:06:50.48 0.1 undecidable manual S 244 0.045 155 0.18 100
IV.FDMO.HHZ. 2020-10-28T08:06:49.17 1.0 undecidable manual P 83 0.0935 136 0 25
IV.MML1.EHE. 2020-10-28T08:06:49.26 0.1 undecidable manual P 5 0.089 137 0.15 99
IT.MTCL.HGZ. 2020-10-28T08:06:48.74 0.3 undecidable manual P 137 0.0423 157 0.21 74
IV.CESI.HHZ. 2020-10-28T08:06:48.73 1.0 undecidable manual P 244 0.045 155 0.17 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.000127955115 0.0576 AML other m 2020-10-28T08:06:50.60
IV.CESI.HHN. ML:0.9 0.0001140405772 0.1408 AML other m 2020-10-28T08:06:50.73
IV.FDMO.HHE. ML:0.6 4.403101E-5 0.16 AML other m 2020-10-28T08:06:51.46
IV.FDMO.HHN. ML:0.7 6.16059E-5 0.1216 AML other m 2020-10-28T08:06:51.60
IV.ASSB.HHE. ML:0.9 4.42245E-5 0.0768 AML other m 2020-10-28T08:06:55.65
IV.ASSB.HHN. ML:0.8 3.269982E-5 0.224 AML other m 2020-10-28T08:06:55.56
IV.EL6.EHE. ML:1.1 4.817759E-5 0.1792 AML other m 2020-10-28T08:06:58.51
IV.EL6.EHN. ML:1.1 4.35692E-5 0.1408 AML other m 2020-10-28T08:06:58.76
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download