Earthquake with magnitude of ML 0.6 on date 20-12-2023 and time 20:06:40 (UTC) in region 5 km SW Fiastra (MC)

A magnitude ML 0.6 earthquake occured in region: 5 km SW Fiastra (MC), on

  • 20-12-2023 20:06:40 (UTC)
  • 20-12-2023 21:06:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9980, 13.1240 at 5 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
Fiastra MC 5 559 559
Fiordimonte MC 5 202 761
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 10 145 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 12 281 6240
Preci PG 15 724 6964
Sarnano MC 15 3264 10228
Camerino MC 16 6974 17202
Serravalle di Chienti MC 16 1070 18272
Cessapalombo MC 17 512 18784
Caldarola MC 18 1823 20607
Montefortino FM 19 1178 21785
Camporotondo di Fiastrone MC 19 563 22348
Amandola FM 19 3629 25977
Gualdo MC 19 815 26792
Montemonaco AP 20 604 27396
Sellano PG 20 1079 28475

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 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 0.6 2023-12-20
20:06:40
42.9977 13.1237 5 2023-12-20
20:15:47
Sala Sismica INGV-Roma 124165901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-20 20:06:40 ± 0.27
Latitude 42.9977 ± 0.0099
Longitude 13.1237 ± 0.0148
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124165901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1530
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 1530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.17807
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.5
Num. used stations 10
Type of magnitude ML
Reference to an origin 124165901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-20 20:15:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2023-12-20T20:06:47.51 0.6 undecidable manual S 123 19.7691 103 -0.13 65
7F.SIB1.EHZ. 2023-12-20T20:06:46.70 0.6 undecidable manual S 134 16.4724 106 0.17 65
IV.NRCA.HHZ. 2023-12-20T20:06:46.09 0.6 negative manual P 182 18.2706 104 1.74 32
7F.SIB3.EHZ. 2023-12-20T20:06:46.91 0.6 undecidable manual S 139 18.0708 104 -0.15 65
IV.MC2.EHZ. 2023-12-20T20:06:45.17 0.6 undecidable manual S 151 10.9779 113 0.46 61
IV.MML1.EHZ. 2023-12-20T20:06:44.06 0.6 undecidable manual P 316 17.7711 104 -0.21 64
IV.CESI.HNZ. 2023-12-20T20:06:44.14 0.3 undecidable manual P 273 17.7711 104 -0.13 98
IV.PF6.EHZ. 2023-12-20T20:06:44.74 0.3 undecidable manual P 20 16.5723 105 0.7 84
7F.SIB2.EHZ. 2023-12-20T20:06:44.14 0.3 undecidable manual P 129 18.7701 104 -0.33 94
IV.MMO1.EHZ. 2023-12-20T20:06:44.35 1.0 undecidable manual P 123 19.7691 103 -0.31 31
7F.SIB3.EHZ. 2023-12-20T20:06:43.89 0.3 undecidable manual P 139 18.0708 104 -0.44 92
7F.SIB1.EHZ. 2023-12-20T20:06:43.80 0.3 undecidable manual P 134 16.4724 106 -0.22 96
IV.MC2.EHZ. 2023-12-20T20:06:43.07 0.3 undecidable manual P 151 10.9779 113 0.1 100
IV.CSP1.EHZ. 2023-12-20T20:06:43.35 1.0 undecidable manual P 32 12.3765 110 0.12 33
IV.FDMO.HHZ. 2023-12-20T20:06:42.84 0.6 undecidable manual S 326 5.1948 131 -0.16 66
IV.FDMO.HHZ. 2023-12-20T20:06:41.86 0.3 undecidable manual P 326 5.1948 131 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.0 0.000043575669999999995 0.1024 AML other m 2023-12-20T20:06:43.01
IV.FDMO.HHN. ML:0.0 0.000041872775 0.1408 AML other m 2023-12-20T20:06:43.12
IV.CSP1.EHE. ML:0.6 0.00005750325 1.5232 AML other m 2023-12-20T20:06:43.91
IV.CSP1.EHN. ML:0.7 0.00006642888500000001 1.4336 AML other m 2023-12-20T20:06:42.79
IV.MML1.EHE. ML:0.0 0.000010547744 0.96 AML other m 2023-12-20T20:06:43.56
IV.MML1.EHN. ML:0.0 0.000008901949999999999 0.6016 AML other m 2023-12-20T20:06:49.16
IV.MML1.HNE. ML:1.0 0.00009158452999999999 0.5376 AML other m 2023-12-20T20:06:47.07
IV.MML1.HNN. ML:1.1 0.00011703845 0.768 AML other m 2023-12-20T20:06:46.07
IV.NRCA.HHE. ML:0.0 0.000008756791 0.1536 AML other m 2023-12-20T20:06:48.25
IV.NRCA.HHN. ML:0.0 0.000008736889 0.1536 AML other m 2023-12-20T20:06:48.13
IV.NRCA.HNE. ML:1.0 0.00009994531500000001 0.8448 AML other m 2023-12-20T20:06:55.38
IV.NRCA.HNN. ML:1.3 0.00019335575 0.7936 AML other m 2023-12-20T20:06:49.18
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