Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 16-01-2021 and time 20:55:54 (UTC) in region 4 km W Pieve Torina (MC)

A magnitude ML 1.5 earthquake occured in region: 4 km W Pieve Torina (MC), on

  • 16-01-2021 20:55:54 (UTC)
  • 16-01-2021 21:55:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.03, 13.01 at 6 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
Pieve Torina MC 4 1458 1458
Monte Cavallo MC 4 145 1603
Fiordimonte MC 6 202 1805
Muccia MC 6 915 2720
Serravalle di Chienti MC 7 1070 3790
Pievebovigliana MC 7 866 4656
Fiastra MC 12 559 5215
Camerino MC 13 6974 12189
Visso MC 13 1107 13296
Acquacanina MC 13 121 13417
Sefro MC 14 422 13839
Ussita MC 14 444 14283
Pioraco MC 17 1134 15417
Preci PG 17 724 16141
Sellano PG 17 1079 17220
Bolognola MC 18 142 17362
Fiuminata MC 19 1402 18764
Castelsantangelo sul Nera MC 19 281 19045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
60 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
98 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 1.5 2021-01-16
20:55:54		 43.03 13.01 6 2021-01-16
21:07:41		 Sala Sismica INGV-Roma 86309971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 20:55:54 ± 0.06
Latitude 43.03 ± 0.00
Longitude 13.01 ± 0.00
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86309971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 371
Semi-minor axis of confidence ellipse (meter) 330
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 45
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.61244
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 86309971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 21:07:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-01-16T20:56:16.55 0.6 undecidable manual S 326 0.6124 50 0.56 39
IV.FRON.EHZ. 2021-01-16T20:56:13.91 0.3 undecidable manual S 337 0.5297 50 0.38 63
IV.SSFR.HHZ. 2021-01-16T20:56:11.11 0.3 undecidable manual S 338 0.438 50 0.28 66
IV.ARVD.HHZ. 2021-01-16T20:56:11.92 0.3 undecidable manual S 354 0.4694 50 0.16 67
IV.MOMA.HHZ. 2021-01-16T20:56:09.87 0.6 undecidable manual S 235 0.3948 50 0.32 44
IV.MF5.EHZ. 2021-01-16T20:56:07.84 0.3 undecidable manual S 97 0.3301 100 0.63 61
IV.PIEI.HHZ. 2021-01-16T20:56:06.72 0.1 undecidable manual P 326 0.6124 50 -0.1 88
IV.FOSV.EHZ. 2021-01-16T20:56:06.75 0.6 undecidable manual S 325 0.3211 100 -0.11 47
IV.ATCC.EHZ. 2021-01-16T20:56:06.88 0.3 undecidable manual S 300 0.3121 100 0.35 67
IV.EL6.EHZ. 2021-01-16T20:56:06.31 0.3 undecidable manual S 12 0.3058 100 0.04 71
IV.FRON.EHZ. 2021-01-16T20:56:05.19 0.1 undecidable manual P 337 0.5297 50 -0.22 87
IV.MMO1.EHZ. 2021-01-16T20:56:04.48 0.3 undecidable manual S 120 0.2653 102 -0.28 68
IV.GUMA.HHZ. 2021-01-16T20:56:04.48 0.3 undecidable manual S 82 0.2383 103 0.74 60
IV.ASSB.HHZ. 2021-01-16T20:56:04.73 0.3 undecidable manual S 273 0.2581 102 0.23 69
IV.SSFR.HHZ. 2021-01-16T20:56:03.36 0.1 undecidable manual P 338 0.438 50 -0.49 84
IV.ARVD.HHZ. 2021-01-16T20:56:03.80 0.6 undecidable manual P 354 0.4694 50 -0.59 40
IV.MOMA.HHZ. 2021-01-16T20:56:02.73 0.1 undecidable manual P 235 0.3948 50 -0.38 87
IV.MC2.EHZ. 2021-01-16T20:56:02.35 0.6 undecidable manual S 133 0.1763 108 0.92 37
IV.NRCA.HHZ. 2021-01-16T20:56:02.94 0.6 undecidable manual S 159 0.2113 105 0.22 47
IV.MF5.EHZ. 2021-01-16T20:56:01.64 0.1 undecidable manual P 97 0.3301 100 -0.12 93
IV.FOSV.EHZ. 2021-01-16T20:56:01.26 0.1 undecidable manual P 325 0.3211 100 -0.3 89
IV.ATCC.EHZ. 2021-01-16T20:56:01.29 0.1 undecidable manual P 300 0.3121 100 -0.08 94
IV.ASSB.HHZ. 2021-01-16T20:56:00.10 0.1 undecidable manual P 273 0.2581 102 -0.09 95
IV.CSP1.EHZ. 2021-01-16T20:56:00.89 0.6 undecidable manual S 67 0.1538 110 0.28 46
IV.EL6.EHZ. 2021-01-16T20:56:00.95 0.1 undecidable manual P 12 0.3058 100 -0.27 90
IV.MMO1.EHZ. 2021-01-16T20:55:59.93 0.1 undecidable manual P 120 0.2653 102 -0.41 88
IV.GUMA.HHZ. 2021-01-16T20:55:59.88 0.1 undecidable manual P 82 0.2383 103 0.13 94
IV.MC2.EHZ. 2021-01-16T20:55:58.50 0.1 undecidable manual P 133 0.1763 108 0.08 96
IV.CESI.HHZ. 2021-01-16T20:55:58.82 0.6 undecidable manual S 252 0.0827 124 0.66 42
IV.NRCA.HHZ. 2021-01-16T20:55:58.90 0.1 undecidable manual P 159 0.2113 105 -0.27 92
IV.CSP1.EHZ. 2021-01-16T20:55:58.01 0.1 positive manual P 67 0.1538 110 0.06 97
IV.FDMO.HHZ. 2021-01-16T20:55:57.01 0.3 undecidable manual S 84 0.0558 136 -0.35 70
IV.CESI.HHZ. 2021-01-16T20:55:56.95 0.1 positive manual P 252 0.0827 124 0.42 91
IT.MTCL.HGZ. 2021-01-16T20:55:56.75 0.1 undecidable manual S 194 0.0378 146 -0.18 97
IV.FDMO.HHZ. 2021-01-16T20:55:55.87 0.1 undecidable manual P 84 0.0558 136 -0.2 96
IT.MTCL.HGZ. 2021-01-16T20:55:55.80 0.1 undecidable manual P 194 0.0378 146 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0 0.000887 0.14 AML other m 2021-01-16T20:55:57.19
IV.FDMO.HHE. ML:0 0.0008795 0.12 AML other m 2021-01-16T20:55:57.49
IV.CESI.HHN. ML:1.3 0.000358 0.98 AML other m 2021-01-16T20:55:58.39
IV.CESI.HNN. ML:1.3 0.0003635 0.86 AML other m 2021-01-16T20:55:59.96
IV.CESI.HHE. ML:1.4 0.000417 0.98 AML other m 2021-01-16T20:55:59.89
IV.CESI.HNE. ML:1.4 0.0003795 1 AML other m 2021-01-16T20:55:59.90
IV.CSP1.EHE. ML:1.6 0.0003395 1 AML other m 2021-01-16T20:56:01.50
IV.CSP1.EHN. ML:1.7 0.000512 0.74 AML other m 2021-01-16T20:56:01.58
IV.NRCA.HHN. ML:1.5 0.00023 0.14 AML other m 2021-01-16T20:56:03.08
IV.NRCA.HHE. ML:1.4 0.00017 1.04 AML other m 2021-01-16T20:56:03.86
IV.GUMA.HHE. ML:1.8 0.0003935 0.18 AML other m 2021-01-16T20:56:04.71
IV.ASSB.HHN. ML:1.4 0.00014 1.84 AML other m 2021-01-16T20:56:04.00
IV.ASSB.HHE. ML:1.4 0.000147 1.44 AML other m 2021-01-16T20:56:05.77
IV.GUMA.HHN. ML:1.8 0.000367 0.92 AML other m 2021-01-16T20:56:05.77
IV.ATCC.EHE. ML:1.5 0.0001465 1.06 AML other m 2021-01-16T20:56:07.28
IV.ATCC.EHN. ML:1.3 8.91E-5 0.42 AML other m 2021-01-16T20:56:07.29
IV.FOSV.EHE. ML:1 4.375E-5 1.58 AML other m 2021-01-16T20:56:08.89
IV.FOSV.EHN. ML:1.2 6.505E-5 0.32 AML other m 2021-01-16T20:56:09.04
IV.SSFR.HHN. ML:1.4 7.075E-5 0.68 AML other m 2021-01-16T20:56:11.95
IV.SSFR.HHE. ML:1.5 8.135E-5 0.24 AML other m 2021-01-16T20:56:12.62
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