Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 25-12-2020 and time 23:55:38 (Italy) in region 4 km W Serra de' Conti (AN)

A magnitude ML 1.4 earthquake occured in region: 4 km W Serra de' Conti (AN), on

  • 25-12-2020 22:55:38 (UTC)
  • 25-12-2020 23:55:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5340, 12.9930 at 9 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
Serra de' Conti AN 4 3746 3746
Arcevia AN 6 4612 8358
Montecarotto AN 6 1987 10345
Barbara AN 6 1368 11713
Poggio San Marcello AN 7 693 12406
Mergo AN 8 1037 13443
Castelplanio AN 8 3540 16983
Rosora AN 8 1985 18968
Castelleone di Suasa AN 8 1676 20644
San Lorenzo in Campo PU 9 3414 24058
Ostra Vetere AN 10 3311 27369
Serra San Quirico AN 10 2850 30219
Maiolati Spontini AN 12 6248 36467
Genga AN 12 1797 38264
Pergola PU 13 6333 44597
Monte Roberto AN 13 3061 47658
Fratte Rosa PU 13 966 48624
Castelbellino AN 13 4947 53571
Corinaldo AN 14 4998 58569
Cupramontana AN 14 4756 63325
Belvedere Ostrense AN 15 2234 65559
Sassoferrato AN 15 7285 72844
Mondavio PU 16 3810 76654
Ostra AN 16 6875 83529
Barchi PU 16 967 84496
San Paolo di Jesi AN 17 933 85429
Orciano di Pesaro PU 17 2028 87457
San Marcello AN 18 2057 89514
Monte Porzio PU 18 2836 92350
Trecastelli AN 18 7625 99975
Serra Sant'Abbondio PU 19 1027 101002
Poggio San Vicino MC 19 246 101248
Staffolo AN 19 2253 103501
Apiro MC 19 2280 105781
Morro d'Alba AN 19 1903 107684
Sant'Ippolito PU 20 1563 109247

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km S of Fano (60888 inhabitants)
42 Km S of Pesaro (94582 inhabitants)
43 Km W of Ancona (100861 inhabitants)
68 Km SE of Rimini (147750 inhabitants)
68 Km NE of Perugia (166134 inhabitants)
68 Km NE of Foligno (57155 inhabitants)
90 Km E of Arezzo (99543 inhabitants)
90 Km SE of Cesena (96758 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 1.4 2020-12-25
22:55:38		 43.5337 12.9933 9 2020-12-25
23:39:34		 Sala Sismica INGV-Roma 85714581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-25 22:55:38 ± 0.07
Latitude 43.5337 ± 0.0036
Longitude 12.9933 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85714581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 451
Semi-minor axis of confidence ellipse (meter) 389
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 57
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64212
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 29
Type of magnitude ML
Reference to an origin 85714581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-25 23:39:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2020-12-25T22:56:00.74 0.6 undecidable manual S 148 71.2731 50 0.84 36
IV.PARC.HHE. 2020-12-25T22:55:58.13 0.3 undecidable manual S 282 61.9935 50 0.73 57
IV.BADI.EHN. 2020-12-25T22:55:57.63 0.6 undecidable manual S 268 60.2952 50 0.67 39
IV.CESI.HHE. 2020-12-25T22:55:57.29 0.3 undecidable manual S 187 59.0964 50 0.65 59
IV.ASSB.HHZ. 2020-12-25T22:55:57.83 0.3 undecidable manual S 207 60.7947 50 0.73 57
IV.FDMO.HHZ. 2020-12-25T22:55:56.14 0.6 undecidable manual S 172 55.6998 50 0.42 43
IV.CSP1.EHZ. 2020-12-25T22:55:55.12 0.3 undecidable manual S 161 51.9036 50 0.4 65
IV.ATVO.HHZ. 2020-12-25T22:55:54.15 0.6 undecidable manual S 251 50.1165 50 -0.1 46
IV.MURB.HHE. 2020-12-25T22:55:54.38 1.0 undecidable manual S 232 48.2184 50 0.64 20
IV.PE3.EHZ. 2020-12-25T22:55:53.45 0.3 undecidable manual S 294 43.8228 50 0.9 55
IV.PESA.HHN. 2020-12-25T22:55:53.87 0.3 undecidable manual S 345 46.8198 50 0.5 64
IV.PF6.EHE. 2020-12-25T22:55:53.68 0.6 undecidable manual S 160 46.8198 50 0.32 44
IV.AOI.HHZ. 2020-12-25T22:55:53.50 0.3 undecidable manual S 88 49.0176 50 -0.44 65
IV.ATPC.HHN. 2020-12-25T22:55:52.81 0.3 undecidable manual S 262 43.5231 50 0.32 67
IV.ATBU.HNN. 2020-12-25T22:55:51.31 0.6 undecidable manual S 260 36.4413 50 0.74 40
IV.MF5.EHZ. 2020-12-25T22:55:50.34 0.3 undecidable manual P 148 71.2731 50 -0.32 64
IV.ATVA.EHE. 2020-12-25T22:55:50.48 0.3 undecidable manual P 244 63.6918 50 0.99 51
IV.PIEI.HHZ. 2020-12-25T22:55:50.48 0.1 undecidable manual S 271 36.8298 50 -0.23 92
IV.SNTG.HHZ. 2020-12-25T22:55:49.19 0.6 undecidable manual S 188 31.2465 50 0 49
IV.FOSV.EHZ. 2020-12-25T22:55:49.56 0.3 undecidable manual S 215 32.4453 50 0.04 73
IV.PARC.HHE. 2020-12-25T22:55:48.78 0.3 undecidable manual P 282 61.9935 50 -0.44 63
IV.CRTC.HHZ. 2020-12-25T22:55:48.14 0.6 undecidable manual S 341 27.5502 109 0.01 49
IV.ASSB.HHZ. 2020-12-25T22:55:48.87 0.1 undecidable manual P 207 60.7947 50 -0.17 89
IV.BADI.EHN. 2020-12-25T22:55:48.56 0.3 undecidable manual P 268 60.2952 50 -0.4 64
IV.CESI.HHE. 2020-12-25T22:55:48.44 0.1 undecidable manual P 187 59.0964 50 -0.34 87
IV.SENI.EHZ. 2020-12-25T22:55:48.73 0.3 undecidable manual S 45 27.0507 109 0.74 60
IV.FDMO.HHZ. 2020-12-25T22:55:47.96 0.1 undecidable manual P 172 55.6998 50 -0.29 88
IV.MURB.HHE. 2020-12-25T22:55:47.20 0.3 undecidable manual P 232 48.2184 50 0.09 70
IV.ATSC.EHE. 2020-12-25T22:55:47.89 0.3 undecidable manual S 244 27.5502 109 -0.25 70
IV.ATVO.HHZ. 2020-12-25T22:55:47.14 0.1 undecidable manual P 251 50.1165 50 -0.26 90
IV.CSP1.EHZ. 2020-12-25T22:55:47.55 0.1 undecidable manual P 161 51.9036 50 -0.12 92
IV.PF6.EHE. 2020-12-25T22:55:47.19 0.1 undecidable manual P 160 46.8198 50 0.31 89
IV.AOI.HHZ. 2020-12-25T22:55:46.59 0.3 undecidable manual P 88 49.0176 50 -0.62 61
IV.PE3.EHZ. 2020-12-25T22:55:46.32 0.1 undecidable manual P 294 43.8228 50 -0.1 94
IV.ATPC.HHN. 2020-12-25T22:55:46.13 0.1 undecidable manual P 262 43.5231 50 -0.25 91
IV.PESA.HHN. 2020-12-25T22:55:46.44 0.3 undecidable manual P 345 46.8198 50 -0.45 65
IV.EL6.EHZ. 2020-12-25T22:55:46.98 0.3 undecidable manual S 159 24.2535 111 -0.1 73
IV.CING.HNN. 2020-12-25T22:55:46.86 0.3 undecidable manual S 137 23.9538 112 -0.1 73
IV.MPAG.EHZ. 2020-12-25T22:55:45.84 0.1 undecidable manual S 299 21.5673 114 -0.37 92
IV.ATBU.HNN. 2020-12-25T22:55:45.01 0.1 undecidable manual P 260 36.4413 50 -0.27 92
IV.SSFR.HHZ. 2020-12-25T22:55:45.87 0.3 undecidable manual S 238 20.1687 115 0.11 73
IV.FOSV.EHZ. 2020-12-25T22:55:44.18 0.1 undecidable manual P 215 32.4453 50 -0.49 88
IV.PIEI.HHZ. 2020-12-25T22:55:44.76 0.1 undecidable manual P 271 36.8298 50 -0.59 84
IV.SENI.EHZ. 2020-12-25T22:55:44.03 0.1 undecidable manual P 45 27.0507 109 0.25 93
IV.SNTG.HHZ. 2020-12-25T22:55:44.07 0.1 undecidable manual P 188 31.2465 50 -0.41 90
IV.COR1.EHZ. 2020-12-25T22:55:43.96 0.3 undecidable manual S 3 10.878 131 0.92 57
IV.CRTC.HHZ. 2020-12-25T22:55:43.32 0.3 undecidable manual P 341 27.5502 109 -0.55 65
IV.ATSC.EHE. 2020-12-25T22:55:43.33 0.1 undecidable manual P 244 27.5502 109 -0.54 87
IV.MMUR.HNZ. 2020-12-25T22:55:43.50 0.1 undecidable manual S 178 10.1787 133 0.64 86
IV.SSFR.HHZ. 2020-12-25T22:55:42.32 0.1 undecidable manual P 238 20.1687 115 -0.17 96
IV.EL6.EHZ. 2020-12-25T22:55:42.90 0.1 undecidable manual P 159 24.2535 111 -0.36 92
IV.CING.HNN. 2020-12-25T22:55:42.70 0.1 undecidable manual P 137 23.9538 112 -0.49 89
IV.ARVD.HHZ. 2020-12-25T22:55:42.30 0.1 undecidable manual S 227 5.7942 149 0.43 93
IV.MPAG.EHZ. 2020-12-25T22:55:42.30 0.6 undecidable manual P 299 21.5673 114 -0.46 45
IV.MNTT.EHZ. 2020-12-25T22:55:41.96 3.0 undecidable manual P 0
IV.COR1.EHZ. 2020-12-25T22:55:41.14 0.1 undecidable manual P 3 10.878 131 0.21 97
IV.ARVD.HHZ. 2020-12-25T22:55:40.35 0.1 undecidable manual P 227 5.7942 149 0.1 100
IV.MMUR.HNZ. 2020-12-25T22:55:40.99 0.1 undecidable manual P 178 10.1787 133 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:1.2 0.00027449999999999995 0.66 AML other m 2020-12-25T22:55:42.68
IV.ARVD.HHE. ML:1.3 0.00035850000000000004 0.46 AML other m 2020-12-25T22:55:42.37
IV.COR1.EHN. ML:1.6 0.000587 0.28 AML other m 2020-12-25T22:55:44.27
IV.COR1.EHE. ML:1.5 0.0003735 0.12 AML other m 2020-12-25T22:55:44.29
IV.MPAG.EHE. ML:1.6 0.00029 1.92 AML other m 2020-12-25T22:55:45.03
IV.MPAG.EHN. ML:1.5 0.0001975 0.08 AML other m 2020-12-25T22:55:46.05
IV.SSFR.HNN. ML:1.8 0.0004625 0.46 AML other m 2020-12-25T22:55:46.41
IV.PIEI.HHN. ML:1.4 0.00008790000000000001 0.24 AML other m 2020-12-25T22:55:50.87
IV.PIEI.HHE. ML:1.5 0.00011949999999999999 0.28 AML other m 2020-12-25T22:55:51.51
IV.MMUR.HNE. ML:1.6 0.00048386225000000003 0.1792 AML other m 2020-12-25T22:55:43.53
IV.MMUR.HNN. ML:1.4 0.0003392353 0.0896 AML other m 2020-12-25T22:55:43.99
IV.MPAG.HNE. ML:1.7 0.00031516935000000003 0.0896 AML other m 2020-12-25T22:55:46.03
IV.MPAG.HNN. ML:1.4 0.00018575525 0.0768 AML other m 2020-12-25T22:55:46.05
IV.SSFR.HHE. ML:1.6 0.00029742314999999994 0.1024 AML other m 2020-12-25T22:55:46.51
IV.SSFR.HHN. ML:1.6 0.00028725445 0.064 AML other m 2020-12-25T22:55:46.17
IV.SSFR.HNE. ML:1.8 0.00051776375 0.064 AML other m 2020-12-25T22:55:46.09
IV.EL6.EHE. ML:1.2 0.00008907659499999999 0.1536 AML other m 2020-12-25T22:55:48.13
IV.EL6.EHN. ML:1.3 0.00012199077999999999 0.1408 AML other m 2020-12-25T22:55:47.24
IV.SNTG.HHE. ML:1.1 0.000059219475 0.1664 AML other m 2020-12-25T22:55:49.82
IV.SNTG.HHN. ML:1.2 0.00007016528499999999 0.2304 AML other m 2020-12-25T22:55:50.02
IV.FOSV.EHE. ML:1.2 0.00007307734 0.2176 AML other m 2020-12-25T22:55:49.89
IV.FOSV.EHN. ML:1.1 0.00005542778 0.2432 AML other m 2020-12-25T22:55:50.09
IV.ATVO.HHE. ML:1.2 0.000042525605 0.3712 AML other m 2020-12-25T22:55:55.39
IV.ATVO.HHN. ML:1.1 0.000028371345 0.3328 AML other m 2020-12-25T22:55:55.62
IV.CSP1.EHN. ML:1.4 0.0000683994 0.32 AML other m 2020-12-25T22:55:55.83
IV.FDMO.HHE. ML:0.8 0.000013963575 0.1408 AML other m 2020-12-25T22:55:57.31
IV.FDMO.HHN. ML:0.8 0.000016739845 0.1408 AML other m 2020-12-25T22:55:58.14
IV.ASSB.HHE. ML:1.0 0.00002101832 0.1152 AML other m 2020-12-25T22:55:58.71
IV.ASSB.HHN. ML:1.0 0.00002056681 0.1408 AML other m 2020-12-25T22:55:59.69
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