Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 27-11-2020 and time 17:57:01 (Italy) in region 4 km W Muccia (MC)

A magnitude ML 0.9 earthquake occured in region: 4 km W Muccia (MC), on

  • 27-11-2020 16:57:01 (UTC)
  • 27-11-2020 17:57:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.08, 13 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
Muccia MC 4 915 915
Serravalle di Chienti MC 4 1070 1985
Pieve Torina MC 6 1458 3443
Pievebovigliana MC 7 866 4309
Sefro MC 8 422 4731
Camerino MC 8 6974 11705
Fiordimonte MC 9 202 11907
Monte Cavallo MC 10 145 12052
Pioraco MC 11 1134 13186
Fiuminata MC 13 1402 14588
Fiastra MC 14 559 15147
Castelraimondo MC 15 4587 19734
Acquacanina MC 15 121 19855
Nocera Umbra PG 17 5839 25694
Gagliole MC 18 620 26314
Visso MC 18 1107 27421
Serrapetrona MC 19 966 28387
Ussita MC 19 444 28831
Esanatoglia MC 19 2034 30865
Matelica MC 19 9981 40846
Caldarola MC 20 1823 42669

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NE of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
65 Km NE of Terni (111501 inhabitants)
73 Km SW of Ancona (100861 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
85 Km S of Fano (60888 inhabitants)
88 Km NW of L'Aquila (69753 inhabitants)
92 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 2020-11-27
16:57:01		 43.08 13 13 2020-11-27
17:11:46		 Sala Sismica INGV-Roma 85053511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 16:57:01 ± 0.05
Latitude 43.08 ± 0.00
Longitude 13.00 ± 0.00
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 85053511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 258
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 9
Type of magnitude ML
Reference to an origin 85053511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 17:11:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-11-27T16:57:11.94 0.6 undecidable manual S 17 0.2563 97 0.32 45
IV.ASSB.HHZ. 2020-11-27T16:57:11.28 0.3 undecidable manual S 261 0.2527 97 -0.22 70
IV.MC2.EHZ. 2020-11-27T16:57:10.45 0.6 undecidable manual S 141 0.2203 99 -0.12 48
IV.SNTG.HHZ. 2020-11-27T16:57:09.17 0.6 undecidable manual S 346 0.1772 104 -0.12 48
IV.CSP1.EHZ. 2020-11-27T16:57:08.55 0.3 undecidable manual S 87 0.1502 110 0.02 74
IV.CESI.HHZ. 2020-11-27T16:57:07.40 0.6 undecidable manual S 222 0.1052 125 0.05 49
IV.EL6.EHZ. 2020-11-27T16:57:07.25 0.1 undecidable manual P 17 0.2563 97 -0.11 95
IV.ASSB.HHZ. 2020-11-27T16:57:07.58 0.3 undecidable manual P 261 0.2527 97 0.29 69
IV.FEMA.HNN. 2020-11-27T16:57:07.92 0.6 undecidable manual S 163 0.1268 117 0.02 49
IV.FDMO.HHE. 2020-11-27T16:57:06.62 0.6 undecidable manual S 126 0.0791 136 -0.15 49
IV.MC2.EHZ. 2020-11-27T16:57:06.91 0.3 undecidable manual P 141 0.2203 99 0.16 71
IV.MML1.HNE. 2020-11-27T16:57:06.11 0.6 undecidable manual S 326 0.036 158 0.03 50
IT.MTCL.HGN. 2020-11-27T16:57:06.77 0.6 undecidable manual S 180 0.0899 131 -0.22 48
IV.SNTG.HHZ. 2020-11-27T16:57:05.87 0.1 undecidable manual P 346 0.1772 104 -0.14 95
IV.FEMA.HNN. 2020-11-27T16:57:05.17 0.1 undecidable manual P 163 0.1268 117 -0.04 99
IV.CSP1.EHZ. 2020-11-27T16:57:05.56 0.1 undecidable manual P 87 0.1502 110 -0.01 99
IT.MTCL.HGN. 2020-11-27T16:57:04.67 0.1 undecidable manual P 180 0.0899 131 -0.01 100
IV.FDMO.HHE. 2020-11-27T16:57:04.51 0.1 undecidable manual P 126 0.0791 136 -0.04 100
IV.CESI.HHZ. 2020-11-27T16:57:04.96 0.1 undecidable manual P 222 0.1052 125 0.07 98
IV.MML1.HNE. 2020-11-27T16:57:04.29 0.1 undecidable manual P 326 0.036 158 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.0001127 0.42 AML other m 2020-11-27T16:57:07.53
IV.CESI.HHN. ML:1 0.0001025 0.44 AML other m 2020-11-27T16:57:07.67
IV.SNTG.HHE. ML:0.8 4.585E-5 0.12 AML other m 2020-11-27T16:57:09.42
IV.SNTG.HHN. ML:0.6 3.185E-5 0.54 AML other m 2020-11-27T16:57:09.43
IV.CSP1.EHE. ML:0.9 6.400003E-5 0.192 AML other m 2020-11-27T16:57:09.84
IV.CSP1.EHN. ML:1 6.9350265E-5 0.832 AML other m 2020-11-27T16:57:09.39
IV.SNTG.HNE. ML:1 7.367221E-5 0.3456 AML other m 2020-11-27T16:57:09.47
IV.EL6.EHE. ML:1 4.7635615E-5 0.1792 AML other m 2020-11-27T16:57:12.31
IV.EL6.EHN. ML:0.9 3.864989E-5 0.1152 AML other m 2020-11-27T16:57:12.51
IV.ASSB.HHE. ML:0.5 1.6010605E-5 0.128 AML other m 2020-11-27T16:57:11.79
IV.ASSB.HHN. ML:0.5 1.712646E-5 0.064 AML other m 2020-11-27T16:57:11.81
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