Earthquake with magnitude of ML 0.4 on date 12-01-2021 and time 14:12:16 (Italy) in region 3 km S Ussita (MC)

A magnitude ML 0.4 earthquake occured in region: 3 km S Ussita (MC), on

  • 12-01-2021 13:12:16 (UTC)
  • 12-01-2021 14:12:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.92, 13.13 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
Ussita MC 3 444 444
Castelsantangelo sul Nera MC 3 281 725
Visso MC 4 1107 1832
Preci PG 9 724 2556
Bolognola MC 11 142 2698
Acquacanina MC 13 121 2819
Fiastra MC 13 559 3378
Fiordimonte MC 13 202 3580
Monte Cavallo MC 13 145 3725
Norcia PG 15 4957 8682
Pieve Torina MC 15 1458 10140
Montemonaco AP 16 604 10744
Pievebovigliana MC 16 866 11610
Sellano PG 17 1079 12689
Montefortino FM 17 1178 13867
Montegallo AP 19 523 14390
Sarnano MC 19 3264 17654
Muccia MC 19 915 18569
Amandola FM 19 3629 22198

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
55 Km NW of Teramo (54892 inhabitants)
56 Km NE of Terni (111501 inhabitants)
64 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
95 Km W of Montesilvano (53738 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 0.4 2021-01-12
13:12:16
42.92 13.13 11 2021-01-12
13:44:34
Sala Sismica INGV-Roma 86203781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-12 13:12:16 ± 0.13
Latitude 42.92 ± 0.01
Longitude 13.13 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86203781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 946
Semi-minor axis of confidence ellipse (meter) 622
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 950
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.04227
Epicentral distance of station farthest from the epicenter (degree) 0.20415
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 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 86203781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-12 13:44:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GUMA.HNE. 2021-01-12T13:12:25.22 0.6 undecidable manual S 46 0.2041 50 0.21 48
IV.CSP1.EHZ. 2021-01-12T13:12:24.22 0.3 undecidable manual S 17 0.1781 50 -0.01 75
IV.CESI.HHZ. 2021-01-12T13:12:24.44 0.3 undecidable manual S 297 0.1871 50 -0.05 74
IT.MTCL.HGN. 2021-01-12T13:12:22.31 0.3 undecidable manual S 307 0.1214 129 -0.11 74
IV.FDMO.HHE. 2021-01-12T13:12:22.09 0.3 undecidable manual S 344 0.1196 129 -0.27 72
IV.MMO1.EHZ. 2021-01-12T13:12:22.84 0.3 undecidable manual S 99 0.1439 124 -0.26 72
IV.GUMA.HNE. 2021-01-12T13:12:21.39 0.6 undecidable manual P 46 0.2041 50 0.01 50
IV.FEMA.HNN. 2021-01-12T13:12:21.39 0.6 undecidable manual S 304 0.0728 143 0.29 48
IV.CESI.HHZ. 2021-01-12T13:12:21.09 0.1 undecidable manual P 297 0.1871 50 0.01 100
IV.MMO1.EHZ. 2021-01-12T13:12:20.23 0.1 undecidable manual P 99 0.1439 124 -0.05 100
IV.CSP1.EHZ. 2021-01-12T13:12:20.88 0.1 undecidable manual P 17 0.1781 50 -0.05 99
IV.MC2.EHZ. 2021-01-12T13:12:20.82 0.3 undecidable manual S 104 0.0423 157 0.32 72
IV.FEMA.HNN. 2021-01-12T13:12:20.06 0.3 undecidable manual P 304 0.0728 143 0.93 58
IV.NRCA.HHZ. 2021-01-12T13:12:20.75 0.3 undecidable manual S 189 0.089 137 -0.74 63
IV.MC2.EHZ. 2021-01-12T13:12:19.09 0.1 undecidable manual P 104 0.0423 157 0.31 96
IV.NRCA.HHZ. 2021-01-12T13:12:19.62 0.3 undecidable manual P 189 0.089 137 0.27 72
IT.MTCL.HGN. 2021-01-12T13:12:19.95 0.1 undecidable manual P 307 0.1214 129 0.06 100
IV.FDMO.HHE. 2021-01-12T13:12:18.98 0.3 undecidable manual P 344 0.1196 129 -0.87 59
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.4 1.7912365E-5 0.0832 AML other m 2021-01-12T13:12:24.38
IV.CSP1.EHN. ML:0.4 2.163432E-5 0.096 AML other m 2021-01-12T13:12:24.96
IV.CESI.HHE. ML:0.3 1.60569565E-5 0.16 AML other m 2021-01-12T13:12:24.84
IV.CESI.HHN. ML:0.5 1.9427225E-5 0.2432 AML other m 2021-01-12T13:12:24.85
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