Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-12-2020 and time 22:32:57 (UTC) in region 5 km SE Fiordimonte (MC)

A magnitude ML 1.2 earthquake occured in region: 5 km SE Fiordimonte (MC), on

  • 08-12-2020 22:32:57 (UTC)
  • 08-12-2020 23:32:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9970, 13.1180 at 10 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
Fiordimonte MC 5 202 202
Fiastra MC 6 559 761
Acquacanina MC 6 121 882
Ussita MC 6 444 1326
Visso MC 8 1107 2433
Pieve Torina MC 8 1458 3891
Pievebovigliana MC 8 866 4757
Bolognola MC 9 142 4899
Monte Cavallo MC 9 145 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 12 281 6240
Preci PG 15 724 6964
Sarnano MC 16 3264 10228
Serravalle di Chienti MC 16 1070 11298
Camerino MC 16 6974 18272
Cessapalombo MC 17 512 18784
Caldarola MC 18 1823 20607
Montefortino FM 19 1178 21785
Camporotondo di Fiastrone MC 19 563 22348
Sellano PG 20 1079 23427
Amandola FM 20 3629 27056
Gualdo MC 20 815 27871

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 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
Reviewed
Rev100 		ML 1.2 2020-12-08
22:32:57		 42.9968 13.1177 10 2020-12-08
22:46:30		 Sala Sismica INGV-Roma 85298421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-08 22:32:57 ± 0.07
Latitude 42.9968 ± 0.0036
Longitude 13.1177 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85298421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 359
Semi-minor axis of confidence ellipse (meter) 317
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85298421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-08 22:46:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2020-12-08T22:33:14.76 3.0 undecidable manual P -0.45 0
IV.EL6.EHZ. 2020-12-08T22:33:10.75 0.3 undecidable manual S 358 36.9297 50 0.39 66
IV.MF5.EHZ. 2020-12-08T22:33:08.24 0.1 undecidable manual S 92 27.75 50 0.32 91
IV.SNTG.HHZ. 2020-12-08T22:33:08.78 0.1 undecidable manual S 333 32.0457 50 -0.28 91
IV.SAP2.EHE. 2020-12-08T22:33:07.69 0.1 undecidable manual S 64 25.3524 50 0.4 90
IV.GUMA.HNN. 2020-12-08T22:33:05.72 0.1 undecidable manual S 67 19.0698 118 0.35 92
IV.MMO1.EHZ. 2020-12-08T22:33:05.22 0.3 undecidable manual S 122 20.1687 117 -0.47 67
IV.NRCA.HHZ. 2020-12-08T22:33:04.87 0.1 undecidable manual S 181 18.1707 119 -0.21 95
IV.CESI.HHZ. 2020-12-08T22:33:04.96 0.3 undecidable manual S 273 17.2716 120 0.13 73
IV.SNTG.HHZ. 2020-12-08T22:33:04.08 0.3 undecidable manual P 333 32.0457 50 -0.25 69
IV.PF6.EHN. 2020-12-08T22:33:04.31 0.1 undecidable manual S 22 16.872 121 -0.37 92
IV.EL6.EHZ. 2020-12-08T22:33:04.76 0.6 negative manual P 358 36.9297 50 -0.32 45
IV.CSP1.EHZ. 2020-12-08T22:33:03.46 0.1 undecidable manual S 34 12.6762 129 -0.04 99
IV.MC2.EHE. 2020-12-08T22:33:03.25 0.1 undecidable manual S 149 11.0778 133 0.16 97
IV.MF5.EHZ. 2020-12-08T22:33:03.70 1.0 undecidable manual P 92 27.75 50 0.03 24
IV.SAP2.EHE. 2020-12-08T22:33:03.06 0.6 undecidable manual P 64 25.3524 50 -0.24 47
IV.MMO1.EHZ. 2020-12-08T22:33:02.04 0.3 undecidable manual P 122 20.1687 117 -0.34 69
IV.FEMA.HNE. 2020-12-08T22:33:02.53 0.1 undecidable manual S 235 6.6933 147 0.43 92
IV.GUMA.HNN. 2020-12-08T22:33:02.15 0.1 undecidable manual P 67 19.0698 118 -0.05 98
IV.PF6.EHN. 2020-12-08T22:33:01.62 0.1 undecidable manual P 22 16.872 121 -0.18 96
IV.CSP1.EHZ. 2020-12-08T22:33:01.11 0.1 negative manual P 34 12.6762 129 -0.01 100
IV.NRCA.HHZ. 2020-12-08T22:33:01.77 0.1 positive manual P 181 18.1707 119 -0.25 94
IV.FDMO.HHZ. 2020-12-08T22:33:01.94 0.1 undecidable manual S 331 4.995 154 0.13 99
IV.CESI.HHZ. 2020-12-08T22:33:01.86 0.1 undecidable manual P 273 17.2716 120 -0.02 99
IT.MTCL.HGE. 2020-12-08T22:33:00.75 0.3 undecidable manual P 268 9.5793 137 0.09 74
IV.FDMO.HHZ. 2020-12-08T22:33:00.23 0.1 undecidable manual P 331 4.995 154 0.09 100
IV.MC2.EHE. 2020-12-08T22:33:00.93 0.1 undecidable manual P 149 11.0778 133 0.05 99
IV.FEMA.HNE. 2020-12-08T22:33:00.52 0.3 undecidable manual P 235 6.6933 147 0.22 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.0 0.00018740804999999998 0.1408 AML other m 2020-12-08T22:33:01.98
IV.FDMO.HHN. ML:1.2 0.00025759925 0.1664 AML other m 2020-12-08T22:33:02.27
IV.CSP1.EHE. ML:1.4 0.00029938575000000003 0.1536 AML other m 2020-12-08T22:33:03.64
IV.CSP1.EHN. ML:1.4 0.00029960939999999997 0.1792 AML other m 2020-12-08T22:33:03.64
IV.NRCA.HHE. ML:1.2 0.00014166030000000002 0.1024 AML other m 2020-12-08T22:33:05.57
IV.NRCA.HHN. ML:1.1 0.00011000375 0.1536 AML other m 2020-12-08T22:33:05.77
IV.NRCA.HNE. ML:1.2 0.000129841955 0.0896 AML other m 2020-12-08T22:33:05.56
IV.CESI.HHN. ML:0.6 0.000028353175 0.1024 AML other m 2020-12-08T22:33:06.83
IV.CESI.HNE. ML:1.3 0.00016142545 0.5888 AML other m 2020-12-08T22:33:06.05
IV.CESI.HNN. ML:1.2 0.000147221195 0.4992 AML other m 2020-12-08T22:33:06.11
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