Earthquake with magnitude of ML 1.6 on date 05-12-2020 and time 17:34:02 (Italy) 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) 42.96, 13.21 at 14 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
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 10 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
Preci PG 17 724 15394
Cessapalombo MC 17 512 15906
Comunanza AP 17 3166 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
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 1.6 2020-12-05
16:34:02
42.96 13.21 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 ± 0.08
Latitude 42.96 ± 0.00
Longitude 13.21 ± 0.00
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85219471

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 40
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 62
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
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 27
Number of defining phases 24
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
Epicentral distance of station farthest from the epicenter (degree) 0.35074
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitude 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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2020-12-05T16:34:15.98 0.6 undecidable manual S 326 0.3507 96 0.18 47
IV.SMA1.EHZ. 2020-12-05T16:34:15.96 0.6 undecidable manual S 164 0.3462 96 0.29 46
IV.ARVD.HHZ. 2020-12-05T16:34:14.24 3.0 positive manual P 0.01 0
IV.MTRA.EHZ. 2020-12-05T16:34:12.62 0.6 undecidable manual S 146 0.2491 100 -0.19 47
IV.CESI.HHZ. 2020-12-05T16:34:12.32 0.6 undecidable manual S 280 0.2257 102 0.16 48
IV.FOSV.EHZ. 2020-12-05T16:34:12.30 3.0 negative manual P -0.09 0
IV.TERO.HHZ. 2020-12-05T16:34:11.86 3.0 undecidable manual P -0.07 0
IV.MF5.EHZ. 2020-12-05T16:34:11.27 0.6 undecidable manual S 83 0.1853 108 0.29 47
IV.SAP2.EHZ. 2020-12-05T16:34:11.33 0.6 undecidable manual S 46 0.1925 106 0.15 48
IV.SNTG.HHZ. 2020-12-05T16:34:10.18 0.1 undecidable manual P 326 0.3507 96 -0.18 93
IV.SMA1.EHZ. 2020-12-05T16:34:10.26 1.0 negative manual P 164 0.3462 96 -0.02 24
IV.NRCA.HHZ. 2020-12-05T16:34:09.91 0.6 undecidable manual S 208 0.1475 115 -0.04 49
IV.CSP1.EHZ. 2020-12-05T16:34:09.15 0.6 undecidable manual S 359 0.1277 121 -0.28 48
IV.GUMA.HHZ. 2020-12-05T16:34:09.76 0.6 undecidable manual S 43 0.1349 119 0.14 48
IV.MMO1.EHZ. 2020-12-05T16:34:08.62 0.6 undecidable manual S 127 0.1079 128 -0.32 48
IV.CESI.HHZ. 2020-12-05T16:34:08.37 0.1 negative manual P 280 0.2257 102 0.12 97
IV.FDMO.HHZ. 2020-12-05T16:34:08.87 0.6 undecidable manual S 309 0.1142 125 -0.23 48
IV.MTRA.EHZ. 2020-12-05T16:34:08.33 0.1 undecidable manual P 146 0.2491 100 -0.31 92
IV.MC2.EHZ. 2020-12-05T16:34:08.17 0.6 undecidable manual S 195 0.0549 151 0.26 48
IV.NRCA.HHZ. 2020-12-05T16:34:07.03 0.1 positive manual P 208 0.1475 115 0.05 100
IV.MF5.EHZ. 2020-12-05T16:34:07.73 0.1 undecidable manual P 83 0.1853 108 0.16 97
IV.SAP2.EHZ. 2020-12-05T16:34:07.74 0.1 undecidable manual P 46 0.1925 106 0.05 99
IV.MC2.EHZ. 2020-12-05T16:34:06.03 0.1 undecidable manual P 195 0.0549 151 0.23 97
IV.GUMA.HHZ. 2020-12-05T16:34:06.83 0.1 positive manual P 43 0.1349 119 0.04 100
IV.MMO1.EHZ. 2020-12-05T16:34:06.17 0.1 undecidable manual P 127 0.1079 128 -0.23 97
IV.FDMO.HHZ. 2020-12-05T16:34:06.41 1.0 undecidable manual P 309 0.1142 125 -0.08 25
IV.CSP1.EHZ. 2020-12-05T16:34:06.53 0.6 undecidable manual P 359 0.1277 121 -0.15 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.0002511981 0.2048 AML other m 2020-12-05T16:34:09.06
IV.FDMO.HHN. ML:1.3 0.00017138925 0.1408 AML other m 2020-12-05T16:34:09.19
IV.CSP1.EHE. ML:2 0.00093598675 0.1408 AML other m 2020-12-05T16:34:09.43
IV.CSP1.EHN. ML:2.1 0.00104609505 0.1408 AML other m 2020-12-05T16:34:09.34
IV.GUMA.HHE. ML:1.8 0.00055354195 0.2432 AML other m 2020-12-05T16:34:10.02
IV.GUMA.HHN. ML:1.6 0.00033120615 0.2304 AML other m 2020-12-05T16:34:10.39
IV.NRCA.HHE. ML:1.9 0.0006806849 0.128 AML other m 2020-12-05T16:34:10.14
IV.NRCA.HHN. ML:1.9 0.0006755664 0.1536 AML other m 2020-12-05T16:34:10.11
IV.NRCA.HNE. ML:1.8 0.00056925935 0.1152 AML other m 2020-12-05T16:34:10.14
IV.NRCA.HNN. ML:1.9 0.00066050005 0.1664 AML other m 2020-12-05T16:34:10.27
IV.MF5.EHE. ML:1.5 0.00019071125 1.6384 AML other m 2020-12-05T16:34:11.22
IV.MF5.EHN. ML:1.5 0.0002210638 0.2688 AML other m 2020-12-05T16:34:11.47
IV.SAP2.EHE. ML:1.3 0.00012411341 0.2944 AML other m 2020-12-05T16:34:14.94
IV.SAP2.EHN. ML:2 0.00066127875 0.1408 AML other m 2020-12-05T16:34:11.88
IV.MTRA.EHE. ML:1.4 0.000125223325 0.0768 AML other m 2020-12-05T16:34:13.36
IV.MTRA.EHN. ML:1.4 0.0001362013 0.1792 AML other m 2020-12-05T16:34:15.68
IV.CESI.HHE. ML:1.4 0.0001559182 0.1536 AML other m 2020-12-05T16:34:12.85
IV.CESI.HHN. ML:1.5 0.00017753805 0.1664 AML other m 2020-12-05T16:34:12.69
IV.SMA1.EHE. ML:1.4 8.49745E-5 0.0768 AML other m 2020-12-05T16:34:16.54
IV.SMA1.EHN. ML:1.3 7.310076E-5 0.1024 AML other m 2020-12-05T16:34:16.55
IV.TERO.HHE. ML:1.3 5.211093E-5 0.0768 AML other m 2020-12-05T16:34:20.01
IV.TERO.HHN. ML:1.4 5.8769335E-5 0.0768 AML other m 2020-12-05T16:34:19.69
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