Earthquake with magnitude of ML 0.4 on date 16-12-2020 and time 05:01:47 (Italy) in region 1 km SE Serravalle di Chienti (MC)

A magnitude ML 0.4 earthquake occured in region: 1 km SE Serravalle di Chienti (MC), on

  • 16-12-2020 04:01:47 (UTC)
  • 16-12-2020 05:01:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.06, 12.96 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
Serravalle di Chienti MC 2 1070 1070
Muccia MC 7 915 1985
Pieve Torina MC 7 1458 3443
Monte Cavallo MC 8 145 3588
Sefro MC 10 422 4010
Pievebovigliana MC 10 866 4876
Fiordimonte MC 11 202 5078
Camerino MC 12 6974 12052
Pioraco MC 13 1134 13186
Fiuminata MC 15 1402 14588
Nocera Umbra PG 15 5839 20427
Fiastra MC 16 559 20986
Valtopina PG 17 1398 22384
Acquacanina MC 18 121 22505
Visso MC 18 1107 23612
Castelraimondo MC 18 4587 28199
Ussita MC 19 444 28643
Sellano PG 19 1079 29722

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
61 Km NE of Terni (111501 inhabitants)
75 Km NW of Teramo (54892 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
87 Km NW of L'Aquila (69753 inhabitants)
87 Km S of Fano (60888 inhabitants)
95 Km S of Pesaro (94582 inhabitants)
98 Km E of Arezzo (99543 inhabitants)
100 Km NE of Viterbo (67173 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 0.4 2020-12-16
04:01:47
43.06 12.96 12 2020-12-16
04:10:28
Sala Sismica INGV-Roma 85460201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-16 04:01:47 ± 0.1
Latitude 43.06 ± 0.00
Longitude 12.96 ± 0.01
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 85460201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 514
Semi-minor axis of confidence ellipse (meter) 387
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07015
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
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85460201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-16 04:10:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2020-12-16T04:01:56.29 0.6 undecidable manual S 265 0.2221 92 -0.07 49
IV.MC2.EHE. 2020-12-16T04:01:56.53 0.3 undecidable manual S 132 0.223 92 0.15 71
IV.CSP1.EHZ. 2020-12-16T04:01:55.14 0.6 undecidable manual S 80 0.1799 94 0.05 49
IV.SNTG.HHN. 2020-12-16T04:01:55.72 0.3 undecidable manual S 355 0.1943 93 0.19 71
IV.EL6.EHE. 2020-12-16T04:01:53.94 0.1 undecidable manual P 21 0.2869 91 0.31 91
IV.CESI.HHZ. 2020-12-16T04:01:52.19 0.6 undecidable manual S 217 0.0701 134 0.11 49
IV.ASSB.HHZ. 2020-12-16T04:01:52.56 0.1 undecidable manual P 265 0.2221 92 0.03 96
IV.MC2.EHE. 2020-12-16T04:01:52.57 0.1 undecidable manual P 132 0.223 92 0.03 97
IV.FDMO.HHZ. 2020-12-16T04:01:52.57 0.6 undecidable manual S 105 0.0944 121 -0.08 49
IV.NRCA.HNN. 2020-12-16T04:01:52.80 0.1 undecidable manual P 154 0.2527 92 -0.25 93
IT.MTCL.HGZ. 2020-12-16T04:01:51.95 0.3 undecidable manual S 158 0.0728 133 -0.18 73
IV.SNTG.HHN. 2020-12-16T04:01:51.50 0.1 undecidable manual P 355 0.1943 93 -0.55 86
IV.CSP1.EHZ. 2020-12-16T04:01:51.74 1.0 undecidable manual P 80 0.1799 94 -0.06 24
IV.CESI.HHZ. 2020-12-16T04:01:50.31 0.3 negative manual P 217 0.0701 134 0.25 71
IT.MTCL.HGZ. 2020-12-16T04:01:50.06 0.1 undecidable manual P 158 0.0728 133 -0.03 100
IV.FDMO.HHZ. 2020-12-16T04:01:50.53 0.6 undecidable manual P 105 0.0944 121 0.14 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.4 3.113979E-5 0.08 AML other m 2020-12-16T04:01:52.39
IV.CESI.HHN. ML:0.4 2.7595185E-5 0.08 AML other m 2020-12-16T04:01:52.52
IV.CESI.HNN. ML:1.1 0.00017801855 0.64 AML other m 2020-12-16T04:01:52.20
IV.FDMO.HHE. ML:0.5 3.4098075E-5 0.16 AML other m 2020-12-16T04:01:52.79
IV.FDMO.HHN. ML:0.6 3.7724345E-5 0.1184 AML other m 2020-12-16T04:01:52.86
IV.ASSB.HHN. ML:-0.1 4.669161E-6 0.16 AML other m 2020-12-16T04:01:56.44
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