Earthquake with magnitude of ML 2.1 on date 09-12-2020 and time 04:16:51 (UTC) in region 6 km W Monte Cavallo (MC)

A magnitude ML 2.1 earthquake occured in region: 6 km W Monte Cavallo (MC), on

  • 09-12-2020 04:16:51 (UTC)
  • 09-12-2020 05:16:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.99, 12.92 at 13 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monte Cavallo MC 6 145 145
Serravalle di Chienti MC 9 1070 1215
Sellano PG 11 1079 2294
Pieve Torina MC 12 1458 3752
Muccia MC 14 915 4667
Fiordimonte MC 15 202 4869
Visso MC 15 1107 5976
Pievebovigliana MC 15 866 6842
Preci PG 16 724 7566
Valtopina PG 16 1398 8964
Nocera Umbra PG 17 5839 14803
Sefro MC 17 422 15225
Ussita MC 18 444 15669
Foligno PG 18 57155 72824
Cerreto di Spoleto PG 19 1075 73899
Trevi PG 19 8469 82368
Fiastra MC 20 559 82927
Camerino MC 20 6974 89901

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
45 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
74 Km NW of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
92 Km NE of Viterbo (67173 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km SE of Arezzo (99543 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
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
Bulletin
Rev1000
ML 2.1 2020-12-09
04:16:51
42.99 12.92 13 2021-02-26
14:56:19
Bollettino Sismico Italiano INGV 87261361
Reviewed
Rev100
ML 2.1 2020-12-09
04:16:51
42.99 12.93 13 2020-12-09
04:26:44
Sala Sismica INGV-Roma 85306371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-09 04:16:51 ± 0.05
Latitude 42.99 ± 0.00
Longitude 12.92 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87261361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 293
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 323
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 28
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 52
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) 0.01889
Epicentral distance of station farthest from the epicenter (degree) 0.76982
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 44
Type of magnitude ML
Reference to an origin 87261361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-18 01:13:37

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 85306371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-09 04:26:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2020-12-09T04:17:06.41 0.6 undecidable manual P 336 0.7698 92 0.71 36
IV.LNSS.HHZ. 2020-12-09T04:17:05.52 0.6 undecidable manual S 168 0.3975 94 0.14 45
IV.EL6.EHZ. 2020-12-09T04:17:04.56 0.6 undecidable manual S 21 0.3615 94 0.26 45
IV.GUMA.HHZ. 2020-12-09T04:17:03.36 0.6 undecidable manual S 77 0.3085 96 0.62 41
IV.MOMA.HHZ. 2020-12-09T04:17:03.47 0.6 undecidable manual S 234 0.3202 95 0.39 44
IV.FOSV.EHZ. 2020-12-09T04:17:03.35 0.6 undecidable manual S 339 0.3256 95 0.11 47
IV.MPAG.EHZ. 2020-12-09T04:17:03.66 0.3 undecidable manual P 349 0.6484 92 0.03 67
IV.GAVE.EHZ. 2020-12-09T04:17:02.56 0.6 undecidable manual S 184 0.3004 96 0.07 47
IV.MMO1.EHZ. 2020-12-09T04:17:02.70 0.6 undecidable manual S 107 0.3085 96 -0.05 48
IV.ARVD.HHZ. 2020-12-09T04:17:01.11 0.1 undecidable manual P 1 0.5063 93 -0.09 90
IV.MNTT.EHZ. 2020-12-09T04:17:01.82 0.3 undecidable manual P 82 0.4955 93 0.8 55
IV.FRON.EHZ. 2020-12-09T04:17:01.77 0.3 undecidable manual P 345 0.545 93 -0.09 67
IV.SNTG.HNZ. 2020-12-09T04:17:01.40 0.6 undecidable manual S 3 0.2635 97 -0.01 48
IV.PF6.EHZ. 2020-12-09T04:17:00.66 0.6 undecidable manual S 53 0.2455 98 -0.23 46
IV.CESX.HHZ. 2020-12-09T04:17:00.19 0.3 undecidable manual P 213 0.456 93 -0.15 67
IV.SMA1.EHZ. 2020-12-09T04:17:00.49 0.3 undecidable manual P 140 0.4703 93 -0.1 68
IV.MC2.EHZ. 2020-12-09T04:17:00.04 0.3 undecidable manual S 112 0.2095 101 0.2 70
IV.CSP1.EHZ. 2020-12-09T04:17:00.43 0.3 undecidable manual S 64 0.2284 100 0.05 72
IV.SSFR.HHZ. 2020-12-09T04:17:00.21 0.3 undecidable manual P 347 0.456 93 -0.13 67
IV.ASSB.HHZ. 2020-12-09T04:16:59.55 0.6 undecidable manual S 285 0.2005 102 -0.02 48
IV.LNSS.HHZ. 2020-12-09T04:16:59.10 0.1 undecidable manual P 168 0.3975 94 -0.25 89
IV.NRCA.HNZ. 2020-12-09T04:16:59.60 0.6 undecidable manual S 139 0.2104 101 -0.27 46
IV.MURB.HHZ. 2020-12-09T04:16:59.47 0.3 undecidable manual P 313 0.3975 94 0.12 69
IV.SAP2.EHZ. 2020-12-09T04:16:59.88 0.3 undecidable manual P 73 0.3624 94 1.13 48
IV.FIU1.HNN. 2020-12-09T04:16:59.44 0.6 undecidable manual S 2 0.197 103 -0.03 48
IV.ARRO.EHZ. 2020-12-09T04:16:59.60 0.3 undecidable manual P 196 0.4281 93 -0.27 66
IV.SEF1.HNZ. 2020-12-09T04:16:58.21 0.3 undecidable manual S 6 0.1556 110 -0.09 72
IT.FOPC.HGZ. 2020-12-09T04:16:58.91 0.3 undecidable manual S 262 0.1628 108 0.41 68
IV.EL6.EHZ. 2020-12-09T04:16:58.65 0.1 undecidable manual P 21 0.3615 94 -0.08 93
IV.GUMA.HHZ. 2020-12-09T04:16:58.00 0.1 undecidable manual P 77 0.3085 96 0.17 92
IV.MOMA.HHZ. 2020-12-09T04:16:58.04 0.3 undecidable manual P 234 0.3202 95 0.02 71
IV.FDMO.HHZ. 2020-12-09T04:16:57.26 0.3 undecidable manual S 69 0.1277 118 -0.27 71
IV.MMO1.EHZ. 2020-12-09T04:16:57.66 0.1 undecidable manual P 107 0.3085 96 -0.17 93
IV.FOSV.EHZ. 2020-12-09T04:16:57.98 0.1 undecidable manual P 339 0.3256 95 -0.13 92
IV.GAVE.EHZ. 2020-12-09T04:16:57.55 0.1 undecidable manual P 184 0.3004 96 -0.13 93
IV.CSP1.EHZ. 2020-12-09T04:16:56.40 0.1 undecidable manual P 64 0.2284 100 -0.06 96
IV.SNTG.HNZ. 2020-12-09T04:16:56.84 0.1 undecidable manual P 3 0.2635 97 -0.22 92
IV.PF6.EHZ. 2020-12-09T04:16:56.53 0.3 undecidable manual P 53 0.2455 98 -0.23 69
IV.NRCA.HNZ. 2020-12-09T04:16:56.00 0.1 undecidable manual P 139 0.2104 101 -0.17 94
IV.MDAR.HNN. 2020-12-09T04:16:56.82 0.3 undecidable manual P 38 0.2563 98 -0.12 71
IV.FEMA.HNZ. 2020-12-09T04:16:56.74 0.3 undecidable manual S 108 0.0962 129 -0.03 74
IV.MC2.EHZ. 2020-12-09T04:16:56.11 0.1 undecidable manual P 112 0.2095 101 -0.04 97
IV.FIU1.HNN. 2020-12-09T04:16:55.84 0.1 undecidable manual P 2 0.197 103 -0.1 95
IV.CESI.HHZ. 2020-12-09T04:16:55.48 0.3 undecidable manual S 313 0.0189 169 -0.09 75
IV.ASSB.HHZ. 2020-12-09T04:16:55.95 0.1 undecidable manual P 285 0.2005 102 -0.05 96
IT.MTCL.HGZ. 2020-12-09T04:16:55.78 0.1 undecidable manual S 88 0.0549 149 -0.18 98
IV.SEF1.HNZ. 2020-12-09T04:16:55.18 0.1 undecidable manual P 6 0.1556 110 -0.09 97
IT.FOPC.HGZ. 2020-12-09T04:16:55.53 0.1 undecidable manual P 262 0.1628 108 0.15 96
IV.FEMA.HNZ. 2020-12-09T04:16:54.45 0.1 undecidable manual P 108 0.0962 129 0.07 97
IV.FDMO.HHZ. 2020-12-09T04:16:54.71 0.3 undecidable manual P 69 0.1277 118 -0.11 73
IV.CESI.HHZ. 2020-12-09T04:16:53.77 0.1 undecidable manual P 313 0.0189 169 0.08 99
IT.MTCL.HGZ. 2020-12-09T04:16:53.89 0.1 undecidable manual P 88 0.0549 149 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HNE. ML:1.9 0.00113 0.52 AML other m 2020-12-09T04:16:55.51
IV.CESI.HHE. ML:1.9 0.001059 0.62 AML other m 2020-12-09T04:16:55.52
IV.CESI.HHN. ML:2 0.001515 0.28 AML other m 2020-12-09T04:16:55.67
IV.CESI.HNN. ML:2 0.001475 0.92 AML other m 2020-12-09T04:16:56.07
IV.FEMA.HNN. ML:2.2 0.001685 1.5 AML other m 2020-12-09T04:16:57.22
IV.FDMO.HHN. ML:2.4 0.002005 0.2 AML other m 2020-12-09T04:16:57.48
IV.FDMO.HHE. ML:2.3 0.001765 0.54 AML other m 2020-12-09T04:16:57.67
IV.FEMA.HNE. ML:2.3 0.00207 1 AML other m 2020-12-09T04:16:57.81
IV.NRCA.HHN. ML:2.8 0.003345 0.12 AML other m 2020-12-09T04:16:59.77
IV.NRCA.HNN. ML:2.7 0.003285 0.12 AML other m 2020-12-09T04:16:59.77
IV.ASSB.HHN. ML:2.4 0.00142 0.08 AML other m 2020-12-09T04:16:59.87
IV.NRCA.HHE. ML:2.7 0.002735 0.74 AML other m 2020-12-09T04:17:00.40
IV.NRCA.HNE. ML:2.6 0.002535 0.74 AML other m 2020-12-09T04:17:00.40
IV.ASSB.HHE. ML:2.2 0.000918 1.56 AML other m 2020-12-09T04:17:00.09
IV.CSP1.EHN. ML:2.4 0.00133 0.52 AML other m 2020-12-09T04:17:00.87
IV.CSP1.EHE. ML:2.3 0.00117 0.62 AML other m 2020-12-09T04:17:00.84
IV.SNTG.HHE. ML:1.7 0.000235 0.76 AML other m 2020-12-09T04:17:01.98
IV.GAVE.EHE. ML:2.1 0.00053 1.42 AML other m 2020-12-09T04:17:02.28
IV.GAVE.EHN. ML:2.1 0.0004815 1.4 AML other m 2020-12-09T04:17:03.14
IV.SNTG.HHN. ML:1.7 0.0002205 0.62 AML other m 2020-12-09T04:17:03.88
IV.GUMA.HHE. ML:2.1 0.0005815 0.32 AML other m 2020-12-09T04:17:03.70
IV.MOMA.HNN. ML:2 0.00037 0.6 AML other m 2020-12-09T04:17:03.83
IV.MOMA.HHN. ML:2 0.000349 0.6 AML other m 2020-12-09T04:17:03.53
IV.MOMA.HHE. ML:2 0.000361 0.18 AML other m 2020-12-09T04:17:04.33
IV.MOMA.HNE. ML:2 0.000351 0.34 AML other m 2020-12-09T04:17:04.59
IV.EL6.EHN. ML:2.1 0.0003955 0.9 AML other m 2020-12-09T04:17:05.79
IV.EL6.EHE. ML:2.1 0.000379 1.44 AML other m 2020-12-09T04:17:06.24
IV.LNSS.HHN. ML:2.1 0.0003885 0.52 AML other m 2020-12-09T04:17:06.63
IV.FOSV.EHN. ML:1.6 0.0001635 1.2 AML other m 2020-12-09T04:17:06.18
IV.LNSS.HHE. ML:2 0.000294 1.12 AML other m 2020-12-09T04:17:06.93
IV.ARRO.EHN. ML:1.6 0.00010565 0.2 AML other m 2020-12-09T04:17:07.51
IV.GUMA.HHN. ML:2 0.0003855 0.38 AML other m 2020-12-09T04:17:07.32
IV.GUMA.HNE. ML:2.1 0.000484 0.52 AML other m 2020-12-09T04:17:07.25
IV.GUMA.HNN. ML:2.3 0.000768 0.7 AML other m 2020-12-09T04:17:07.19
IV.MURB.HHN. ML:2.2 0.000426 0.2 AML other m 2020-12-09T04:17:07.63
IV.ARRO.EHE. ML:1.8 0.000177 0.24 AML other m 2020-12-09T04:17:07.68
IV.MURB.HHE. ML:2.2 0.0004705 0.2 AML other m 2020-12-09T04:17:07.76
IV.SSFR.HHE. ML:2.1 0.0003135 1.34 AML other m 2020-12-09T04:17:08.13
IV.SSFR.HNE. ML:2.2 0.0004295 0.6 AML other m 2020-12-09T04:17:08.03
IV.FOSV.EHE. ML:1.5 0.000128 0.68 AML other m 2020-12-09T04:17:08.47
IV.SSFR.HNN. ML:2.2 0.0003605 1.26 AML other m 2020-12-09T04:17:09.25
IV.SSFR.HHN. ML:2 0.0002775 1.26 AML other m 2020-12-09T04:17:09.25
IV.CESX.HHE. ML:1.8 0.0001815 0.4 AML other m 2020-12-09T04:17:13.15
IV.CESX.HHN. ML:1.9 0.000217 0.36 AML other m 2020-12-09T04:17:13.35
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download