Earthquake with magnitude of ML 0.5 on date 31-12-2020 and time 22:31:02 (UTC) in region 3 km SE Cantiano (PU)

A magnitude ML 0.5 earthquake occured in region: 3 km SE Cantiano (PU), on

  • 31-12-2020 22:31:02 (UTC)
  • 31-12-2020 23:31:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4530, 12.6460 at 15 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
Cantiano PU 3 2245 2245
Scheggia e Pascelupo PG 6 1393 3638
Frontone PU 10 1300 4938
Cagli PU 11 8731 13669
Serra Sant'Abbondio PU 11 1027 14696
Costacciaro PG 12 1216 15912
Gubbio PG 12 32216 48128
Sigillo PG 16 2404 50532
Pietralunga PG 17 2111 52643
Sassoferrato AN 17 7285 59928
Acqualagna PU 18 4393 64321
Piobbico PU 19 2029 66350
Pergola PU 20 6333 72683
Fossato di Vico PG 20 2840 75523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NE of Perugia (166134 inhabitants)
53 Km SW of Fano (60888 inhabitants)
55 Km SW of Pesaro (94582 inhabitants)
55 Km N of Foligno (57155 inhabitants)
62 Km E of Arezzo (99543 inhabitants)
68 Km S of Rimini (147750 inhabitants)
73 Km W of Ancona (100861 inhabitants)
83 Km SE of Cesena (96758 inhabitants)
98 Km SE of Forlì (117913 inhabitants)
99 Km N of Terni (111501 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 0.5 2020-12-31
22:31:02
43.453 12.646 15 2020-12-31
22:40:30
Sala Sismica INGV-Roma 85923411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-31 22:31:02 ± 0.13
Latitude 43.4530 ± 0.0054
Longitude 12.6460 ± 0.0050
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85923411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 284
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.19066
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 85923411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-31 22:40:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2020-12-31T22:31:35.96 3.0 undecidable manual Sn -0.04 0
IV.MTRZ.HNZ. 2020-12-31T22:31:21.39 3.0 undecidable manual P -0.02 0
IV.FOSV.EHZ. 2020-12-31T22:31:10.84 1.0 undecidable manual S 152 19.869 113 0.32 23
IV.TB01.DHN.01 2020-12-31T22:31:10.20 0.1 undecidable manual S 245 18.6702 115 -0.04 99
IV.NARO.HHZ. 2020-12-31T22:31:10.05 0.6 undecidable manual S 343 18.2706 116 -0.09 49
IV.ATPC.HHZ. 2020-12-31T22:31:09.62 0.1 undecidable manual S 281 15.4734 122 0.13 97
IV.FRON.EHZ. 2020-12-31T22:31:08.20 0.6 undecidable manual S 42 9.5793 139 -0.09 49
IV.PIEI.HHZ. 2020-12-31T22:31:08.57 0.6 undecidable manual S 316 12.7761 129 -0.33 47
IV.SSFR.HHE. 2020-12-31T22:31:08.56 0.1 undecidable manual S 100 11.1777 134 0 100
IV.TB01.DHN.01 2020-12-31T22:31:07.11 0.1 undecidable manual P 245 18.6702 115 0.12 96
IV.ATSC.EHE. 2020-12-31T22:31:07.45 0.1 undecidable manual S 135 4.5954 159 -0.14 99
IV.PIEI.HHZ. 2020-12-31T22:31:06.20 0.1 negative manual P 316 12.7761 129 -0.01 100
IV.SSFR.HHE. 2020-12-31T22:31:06.22 0.1 undecidable manual P 100 11.1777 134 0.2 97
IV.NARO.HHZ. 2020-12-31T22:31:06.98 0.6 undecidable manual P 343 18.2706 116 0.05 49
IV.ATPC.HHZ. 2020-12-31T22:31:06.65 0.1 undecidable manual P 281 15.4734 122 0.1 98
IV.FOSV.EHZ. 2020-12-31T22:31:06.93 0.1 undecidable manual P 152 19.869 113 -0.22 94
IV.FRON.EHZ. 2020-12-31T22:31:06.04 0.6 undecidable manual P 42 9.5793 139 0.18 49
IV.TB02.DHZ.01 2020-12-31T22:31:06.86 0.6 undecidable manual P 244 21.1677 111 -0.47 45
IV.ATSC.EHE. 2020-12-31T22:31:05.59 0.1 undecidable manual P 135 4.5954 159 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.6 0.00003945 0.08 AML other m 2020-12-31T22:31:08.33
IV.FRON.EHN. ML:0.7 0.00004259963 0.1024 AML other m 2020-12-31T22:31:08.36
IV.PIEI.HHE. ML:0.5 0.000023581245 0.0512 AML other m 2020-12-31T22:31:09.06
IV.PIEI.HHN. ML:0.4 0.000021051205 0.1152 AML other m 2020-12-31T22:31:08.71
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