Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 05-12-2020 and time 16:34:02 (UTC) in region 4 km SW Bolognola (MC)

A magnitude ML 1.6 earthquake occured in region: 4 km SW Bolognola (MC), on

  • 05-12-2020 16:34:02 (UTC)
  • 05-12-2020 17:34:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9650, 13.2100 at 14 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Bolognola MC 4 142 142
Ussita MC 6 444 586
Acquacanina MC 8 121 707
Castelsantangelo sul Nera MC 9 281 988
Fiastra MC 9 559 1547
Visso MC 11 1107 2654
Sarnano MC 11 3264 5918
Montefortino FM 11 1178 7096
Montemonaco AP 12 604 7700
Amandola FM 12 3629 11329
Fiordimonte MC 13 202 11531
Pievebovigliana MC 15 866 12397
Gualdo MC 16 815 13212
Pieve Torina MC 16 1458 14670
Cessapalombo MC 17 512 15182
Comunanza AP 17 3166 18348
Preci PG 17 724 19072
Montegallo AP 17 523 19595
Monte Cavallo MC 17 145 19740
San Ginesio MC 18 3498 23238
Muccia MC 19 915 24153
Camporotondo di Fiastrone MC 19 563 24716
Caldarola MC 20 1823 26539
Smerillo FM 20 365 26904

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
64 Km NE of Terni (111501 inhabitants)
69 Km E of Perugia (166134 inhabitants)
70 Km N of L'Aquila (69753 inhabitants)
77 Km SW of Ancona (100861 inhabitants)
92 Km NW of Montesilvano (53738 inhabitants)
99 Km S of Fano (60888 inhabitants)
99 Km NW of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.6 2020-12-05
16:34:02		 42.9648 13.2097 15 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85446941
Reviewed
Rev100 		ML 1.6 2020-12-05
16:34:02		 42.9642 13.2088 14 2020-12-05
16:46:33		 Sala Sismica INGV-Roma 85219471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-05 16:34:02 ± 0.06
Latitude 42.9648 ± 0.0027
Longitude 13.2097 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85446941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 106
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.56747
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85219471
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-05 16:46:33

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 85446941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-15 14:37:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2020-12-05T16:34:19.53 0.3 undecidable manual S 315 51.5151 95 0.4 66
IV.CING.HNZ. 2020-12-05T16:34:17.58 0.3 undecidable manual S 359 45.621 96 0.04 71
IV.SNTG.HHZ. 2020-12-05T16:34:15.71 0.3 undecidable manual S 326 38.8278 98 -0.05 72
IV.SMA1.EHZ. 2020-12-05T16:34:15.96 0.6 undecidable manual S 165 38.4282 98 0.31 45
IV.ARVD.HHZ. 2020-12-05T16:34:14.16 0.3 undecidable manual P 340 62.9925 94 0.15 68
IV.MTRA.EHZ. 2020-12-05T16:34:12.62 0.6 undecidable manual S 147 27.6501 103 -0.19 48
IV.FOSV.EHZ. 2020-12-05T16:34:12.23 0.1 undecidable manual P 315 51.5151 95 -0.03 94
IV.MML1.HNE. 2020-12-05T16:34:12.33 0.1 undecidable manual S 311 25.3524 105 0.11 98
IV.CESI.HHZ. 2020-12-05T16:34:12.32 0.6 undecidable manual S 280 25.1526 105 0.16 48
IV.TERO.HHZ. 2020-12-05T16:34:11.71 0.3 undecidable manual P 140 49.7169 95 -0.26 68
IV.MF5.EHZ. 2020-12-05T16:34:11.27 0.6 undecidable manual S 83 20.4684 111 0.3 47
IV.SAP2.EHZ. 2020-12-05T16:34:11.33 0.6 undecidable manual S 46 21.2676 110 0.17 48
IV.LNSS.HNZ. 2020-12-05T16:34:11.27 0.3 undecidable manual P 199 42.4242 97 0.41 66
IV.CING.HNZ. 2020-12-05T16:34:11.21 0.1 undecidable manual P 359 45.621 96 -0.13 94
IV.SNTG.HHZ. 2020-12-05T16:34:10.18 0.1 undecidable manual P 326 38.8278 98 -0.13 95
IV.SMA1.EHZ. 2020-12-05T16:34:10.14 0.3 undecidable manual P 165 38.4282 98 -0.11 72
IV.CSP1.EHZ. 2020-12-05T16:34:09.15 0.6 undecidable manual S 358 14.0748 124 -0.31 47
IV.GUMA.HHZ. 2020-12-05T16:34:09.76 0.6 undecidable manual S 43 14.874 122 0.12 49
IV.NRCA.HHZ. 2020-12-05T16:34:09.91 0.6 undecidable manual S 208 16.4724 118 -0.09 50
IV.MTRA.EHZ. 2020-12-05T16:34:08.33 0.1 undecidable manual P 147 27.6501 103 -0.28 94
IV.MML1.HNE. 2020-12-05T16:34:08.30 0.1 negative manual P 311 25.3524 105 0.03 99
IV.FDMO.HHZ. 2020-12-05T16:34:08.87 0.6 undecidable manual S 309 12.6762 128 -0.29 48
IV.CESI.HHZ. 2020-12-05T16:34:08.37 0.1 negative manual P 280 25.1526 105 0.14 97
IV.MC2.EHZ. 2020-12-05T16:34:08.17 0.6 undecidable manual S 196 6.1938 152 0.14 50
IV.MMO1.EHZ. 2020-12-05T16:34:08.62 0.6 undecidable manual S 127 11.9769 131 -0.39 47
IV.PF6.EHN. 2020-12-05T16:34:07.14 0.1 positive manual P 356 19.2696 113 -0.23 96
IV.NRCA.HHZ. 2020-12-05T16:34:07.03 0.1 positive manual P 208 16.4724 118 0.04 100
IT.MTCL.HGZ. 2020-12-05T16:34:07.04 0.3 undecidable manual P 281 17.3715 117 -0.07 74
IV.MF5.EHZ. 2020-12-05T16:34:07.73 0.1 undecidable manual P 83 20.4684 111 0.19 96
IV.SAP2.EHZ. 2020-12-05T16:34:07.74 0.1 undecidable manual P 46 21.2676 110 0.08 98
IV.MC2.EHZ. 2020-12-05T16:34:06.03 0.1 undecidable manual P 196 6.1938 152 0.18 99
IV.GUMA.HHZ. 2020-12-05T16:34:06.83 0.1 positive manual P 43 14.874 122 0.05 100
IV.MMO1.EHZ. 2020-12-05T16:34:06.17 0.1 undecidable manual P 127 11.9769 131 -0.24 97
IV.FDMO.HHZ. 2020-12-05T16:34:06.43 0.1 negative manual P 309 12.6762 128 -0.07 100
IV.CSP1.EHZ. 2020-12-05T16:34:06.58 0.1 positive manual P 358 14.0748 124 -0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.0002511981 1.7952 AML other m 2020-12-05T16:34:09.06
IV.FDMO.HHN. ML:1.3 0.00017138924999999999 0.1408 AML other m 2020-12-05T16:34:09.19
IV.CSP1.EHN. ML:2.1 0.00104609505 0.1408 AML other m 2020-12-05T16:34:09.34
IV.CSP1.EHE. ML:2.0 0.00093598675 0.1408 AML other m 2020-12-05T16:34:09.43
IV.GUMA.HHE. ML:1.8 0.00055354195 1.7568 AML other m 2020-12-05T16:34:09.02
IV.NRCA.HNN. ML:1.9 0.00066050005 0.1664 AML other m 2020-12-05T16:34:10.27
IV.NRCA.HHN. ML:1.9 0.0006755663999999999 0.1536 AML other m 2020-12-05T16:34:10.11
IV.NRCA.HNE. ML:1.9 0.00056925935 0.1152 AML other m 2020-12-05T16:34:10.14
IV.NRCA.HHE. ML:1.9 0.0006806849 0.128 AML other m 2020-12-05T16:34:10.14
IV.MF5.EHE. ML:1.5 0.00019071125 0.3616 AML other m 2020-12-05T16:34:10.22
IV.GUMA.HHN. ML:1.6 0.00033120614999999996 0.2304 AML other m 2020-12-05T16:34:10.39
IV.MF5.EHN. ML:1.5 0.0002210638 0.2688 AML other m 2020-12-05T16:34:11.47
IV.SAP2.EHN. ML:2.0 0.0006612787499999999 0.1408 AML other m 2020-12-05T16:34:11.88
IV.CESI.HHN. ML:1.5 0.00017753805 0.1664 AML other m 2020-12-05T16:34:12.69
IV.CESI.HHE. ML:1.5 0.0001559182 0.1536 AML other m 2020-12-05T16:34:12.85
IV.MTRA.EHE. ML:1.4 0.000125223325 0.0768 AML other m 2020-12-05T16:34:13.36
IV.SAP2.EHE. ML:1.3 0.00012411341 0.2944 AML other m 2020-12-05T16:34:14.94
IV.MTRA.EHN. ML:1.4 0.00013620129999999999 0.1792 AML other m 2020-12-05T16:34:15.68
IV.SMA1.EHE. ML:1.4 0.0000849745 0.0768 AML other m 2020-12-05T16:34:16.54
IV.SMA1.EHN. ML:1.3 0.00007310076 0.1024 AML other m 2020-12-05T16:34:16.55
IV.TERO.HHN. ML:1.4 0.000058769334999999996 0.0768 AML other m 2020-12-05T16:34:19.69
IV.TERO.HHE. ML:1.3 0.00005211093 0.0768 AML other m 2020-12-05T16:34:20.01
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