Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 30-12-2020 and time 04:03:24 (Italy) in region 1 km SW Muccia (MC)

A magnitude ML 0.8 earthquake occured in region: 1 km SW Muccia (MC), on

  • 30-12-2020 03:03:24 (UTC)
  • 30-12-2020 04:03:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.08, 13.03 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.

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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 1 915 915
Pieve Torina MC 4 1458 2373
Pievebovigliana MC 5 866 3239
Serravalle di Chienti MC 6 1070 4309
Fiordimonte MC 6 202 4511
Camerino MC 7 6974 11485
Monte Cavallo MC 9 145 11630
Sefro MC 10 422 12052
Fiastra MC 11 559 12611
Pioraco MC 12 1134 13745
Acquacanina MC 13 121 13866
Fiuminata MC 15 1402 15268
Castelraimondo MC 15 4587 19855
Visso MC 17 1107 20962
Ussita MC 17 444 21406
Serrapetrona MC 17 966 22372
Caldarola MC 17 1823 24195
Bolognola MC 18 142 24337
Gagliole MC 19 620 24957
Cessapalombo MC 19 512 25469
Belforte del Chienti MC 20 1886 27355
Nocera Umbra PG 20 5839 33194

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
52 Km E of Perugia (166134 inhabitants)
65 Km NE of Terni (111501 inhabitants)
72 Km NW of Teramo (54892 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
85 Km S of Fano (60888 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
93 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 0.8 2020-12-30
03:03:24		 43.08 13.03 11 2020-12-30
03:10:33		 Sala Sismica INGV-Roma 85867141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-30 03:03:24 ± 0.07
Latitude 43.08 ± 0.00
Longitude 13.03 ± 0.01
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 85867141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 521
Semi-minor axis of confidence ellipse (meter) 504
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.27879
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85867141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-30 03:10:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-12-30T03:03:34.22 0.6 undecidable manual S 11 0.2581 90 -0.07 62
IV.MMO1.EHZ. 2020-12-30T03:03:34.75 0.6 undecidable manual S 129 0.2788 90 -0.16 61
IV.GUMA.HNZ. 2020-12-30T03:03:33.63 0.6 undecidable manual S 93 0.2221 91 0.41 61
IV.MC2.EHZ. 2020-12-30T03:03:32.78 0.6 undecidable manual S 145 0.2005 91 0.19 64
IV.CSP1.EHZ. 2020-12-30T03:03:30.34 0.6 undecidable manual S 83 0.1268 96 -0.08 65
IV.MMO1.EHZ. 2020-12-30T03:03:30.12 0.3 undecidable manual P 129 0.2788 90 -0.25 90
IV.CESI.HHZ. 2020-12-30T03:03:30.27 0.6 undecidable manual S 233 0.1169 103 0.15 63
IV.GUMA.HNZ. 2020-12-30T03:03:29.87 0.3 undecidable manual P 93 0.2221 91 0.47 90
IV.NRCA.HNZ. 2020-12-30T03:03:29.61 0.3 undecidable manual P 166 0.25 90 -0.27 91
IV.EL6.EHZ. 2020-12-30T03:03:29.69 0.3 undecidable manual P 11 0.2581 90 -0.33 88
IV.FDMO.HHZ. 2020-12-30T03:03:28.50 0.6 undecidable manual S 134 0.0567 141 -0.13 66
IV.MC2.EHZ. 2020-12-30T03:03:28.95 0.3 undecidable manual P 145 0.2005 91 -0.09 95
IV.MML1.HNZ. 2020-12-30T03:03:28.84 0.6 undecidable manual S 310 0.0576 140 0.19 64
IV.CESI.HHZ. 2020-12-30T03:03:27.72 0.3 undecidable manual P 233 0.1169 103 0.11 97
IV.CSP1.EHZ. 2020-12-30T03:03:27.75 0.3 undecidable manual P 83 0.1268 96 -0.03 98
IV.MML1.HNZ. 2020-12-30T03:03:26.82 0.3 undecidable manual P 310 0.0576 140 0.06 99
IV.FDMO.HHZ. 2020-12-30T03:03:26.69 0.3 undecidable manual P 134 0.0567 141 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 9.635463E-5 0.08 AML other m 2020-12-30T03:03:28.70
IV.FDMO.HHN. ML:0.6 6.1155625E-5 0.12 AML other m 2020-12-30T03:03:28.67
IV.CESI.HNE. ML:1 9.5170245E-5 0.0096 AML other m 2020-12-30T03:03:30.37
IV.CESI.HNN. ML:1.1 0.00011372545 0.1488 AML other m 2020-12-30T03:03:30.43
IV.CESI.HHE. ML:1 0.000111466 0.08 AML other m 2020-12-30T03:03:30.33
IV.CESI.HHN. ML:1 9.878816E-5 0.16 AML other m 2020-12-30T03:03:30.43
IV.CSP1.EHE. ML:0.6 3.494418E-5 0.16 AML other m 2020-12-30T03:03:30.98
IV.CSP1.EHN. ML:0.8 5.4650152E-5 0.1392 AML other m 2020-12-30T03:03:31.34
IV.EL6.EHE. ML:0.6 2.1716285E-5 0.24 AML other m 2020-12-30T03:03:34.23
IV.EL6.EHN. ML:0.8 3.4498635E-5 0.1808 AML other m 2020-12-30T03:03:34.77
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