Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-12-2020 and time 20:02:18 (Italy) in region 4 km W Treia (MC)

A magnitude ML 2.0 earthquake occured in region: 4 km W Treia (MC), on

  • 31-12-2020 19:02:18 (UTC)
  • 31-12-2020 20:02:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3260, 13.2710 at 23 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.

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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
Treia MC 4 9403 9403
Cingoli MC 7 10352 19755
Appignano MC 8 4213 23968
Pollenza MC 9 6618 30586
San Severino Marche MC 13 12726 43312
Tolentino MC 13 20069 63381
Apiro MC 14 2280 65661
Staffolo AN 14 2253 67914
Filottrano AN 14 9499 77413
Montecassiano MC 14 7125 84538
Macerata MC 15 42473 127011
Poggio San Vicino MC 16 246 127257
San Paolo di Jesi AN 16 933 128190
Urbisaglia MC 17 2628 130818
Montefano MC 17 3541 134359
Serrapetrona MC 18 966 135325
Belforte del Chienti MC 18 1886 137211
Cupramontana AN 18 4756 141967
Gagliole MC 19 620 142587
Colmurano MC 19 1263 143850
Santa Maria Nuova AN 19 4179 148029
Petriolo MC 20 1998 150027

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km SW of Ancona (100861 inhabitants)
61 Km SE of Fano (60888 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
71 Km SE of Pesaro (94582 inhabitants)
75 Km E of Perugia (166134 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
99 Km NE of Terni (111501 inhabitants)
100 Km SE of Rimini (147750 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
Bulletin
Rev1000 		ML 2.0 2020-12-31
19:02:18		 43.3257 13.2708 23 2021-02-26
14:56:18		 Bollettino Sismico Italiano INGV 86884031
Reviewed
Rev100 		ML 2.0 2020-12-31
19:02:18		 43.3322 13.2908 10 2020-12-31
19:16:45		 Sala Sismica INGV-Roma 85911431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-31 19:02:18 ± 0.09
Latitude 43.3257 ± 0.0036
Longitude 13.2708 ± 0.0062
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86884031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 31
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
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) 38
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 69
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.03417
Epicentral distance of station farthest from the epicenter (degree) 0.94069
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 86884031
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-25 17:12:25

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 85911431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-31 19:16:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-12-31T19:02:42.70 0.6 undecidable manual S 204 76.6677 100 1 33
IV.PIEI.HHZ. 2020-12-31T19:02:38.99 0.6 undecidable manual S 292 63.6918 103 0.68 39
IV.ASSB.HHZ. 2020-12-31T19:02:37.86 0.6 undecidable manual S 238 58.5969 104 0.86 36
IV.MGAB.HHZ. 2020-12-31T19:02:36.39 0.6 undecidable manual P 244 104.4177 97 0.25 41
IV.FRON.EHZ. 2020-12-31T19:02:35.24 0.3 undecidable manual S 296 48.8178 107 0.76 58
IV.MMO1.EHZ. 2020-12-31T19:02:34.49 0.6 undecidable manual S 175 47.5191 108 0.34 45
IV.MC2.EHZ. 2020-12-31T19:02:34.34 0.6 undecidable manual S 188 46.4202 108 0.47 44
IV.CESI.HHZ. 2020-12-31T19:02:34.56 0.6 undecidable manual S 220 46.3203 108 0.72 39
IV.SENI.HNN. 2020-12-31T19:02:34.10 0.6 undecidable manual S 356 42.2244 111 1.29 31
IV.ARRO.EHZ. 2020-12-31T19:02:34.08 0.3 undecidable manual P 207 92.4408 98 -0.23 64
IV.COR1.EHZ. 2020-12-31T19:02:34.28 0.3 undecidable manual S 327 40.3263 112 1.94 31
IV.MNTT.EHZ. 2020-12-31T19:02:33.52 0.6 undecidable manual S 138 39.3273 112 1.43 29
IV.MF5.EHZ. 2020-12-31T19:02:33.32 0.6 undecidable manual S 158 40.5261 112 0.94 37
IV.FOSV.EHZ. 2020-12-31T19:02:33.06 0.6 undecidable manual S 265 41.3253 111 0.48 44
IV.LNSS.HHZ. 2020-12-31T19:02:32.54 0.3 undecidable manual P 193 82.3509 99 -0.23 65
IV.MOMA.HHZ. 2020-12-31T19:02:32.35 0.3 undecidable manual P 225 81.0522 100 -0.23 65
IV.TERO.HHZ. 2020-12-31T19:02:32.76 0.3 undecidable manual P 161 82.5507 99 -0.04 67
IV.PCRO.HNE. 2020-12-31T19:02:32.08 0.6 undecidable manual S 34 37.7289 113 0.38 46
IV.GAVE.EHZ. 2020-12-31T19:02:31.73 0.1 undecidable manual P 204 76.6677 100 -0.18 89
IV.FDMO.HHZ. 2020-12-31T19:02:31.15 0.6 undecidable manual S 205 35.3424 115 0.03 49
IV.CIMA.HNE. 2020-12-31T19:02:31.65 0.6 undecidable manual S 94 32.3454 118 1.25 33
IV.SMA1.EHZ. 2020-12-31T19:02:31.68 0.3 undecidable manual P 176 77.2671 100 -0.32 64
IV.AOI.HHZ. 2020-12-31T19:02:31.11 0.6 undecidable manual S 47 36.5412 114 -0.29 46
IV.SEF1.HNN. 2020-12-31T19:02:30.83 0.6 undecidable manual S 233 32.8449 117 0.32 46
IV.PP3.HNN. 2020-12-31T19:02:30.03 0.6 undecidable manual S 78 27.9498 122 0.65 43
IV.OFFI.HHZ. 2020-12-31T19:02:29.42 0.3 undecidable manual P 142 54.8007 105 0.8 58
IV.PIEI.HHZ. 2020-12-31T19:02:29.63 0.3 undecidable manual P 292 63.6918 103 -0.31 66
IV.SAP2.EHZ. 2020-12-31T19:02:29.93 0.3 undecidable manual S 158 27.4503 123 0.66 64
IV.MNTP.HNZ. 2020-12-31T19:02:29.65 0.3 undecidable manual S 142 26.3514 124 0.63 65
IV.SNTG.HHE. 2020-12-31T19:02:29.76 0.6 undecidable manual S 254 27.75 122 0.41 46
IV.CRTC.HHZ. 2020-12-31T19:02:29.36 0.3 undecidable manual P 328 58.1973 104 0.24 68
IV.MURB.HHZ. 2020-12-31T19:02:29.55 0.3 undecidable manual P 264 60.6948 103 0.05 70
IV.CSP1.EHZ. 2020-12-31T19:02:29.07 0.6 undecidable manual S 192 26.4513 124 0.01 50
IV.NRCA.HHZ. 2020-12-31T19:02:28.37 0.3 undecidable manual P 193 55.9995 105 -0.44 65
IV.MPAG.EHZ. 2020-12-31T19:02:28.15 0.3 undecidable manual P 309 53.2023 106 -0.23 69
IV.ASSB.HHZ. 2020-12-31T19:02:28.96 0.1 negative manual P 238 58.5969 104 -0.23 91
IV.MDAR.HNN. 2020-12-31T19:02:27.20 0.6 undecidable manual S 215 18.0708 136 -0.11 50
IV.PF6.EHN. 2020-12-31T19:02:27.84 0.6 undecidable manual S 197 21.7671 130 -0.2 49
IV.FRON.EHZ. 2020-12-31T19:02:27.59 0.3 undecidable manual P 296 48.8178 107 -0.14 71
IV.GAG1.HNE. 2020-12-31T19:02:27.55 0.6 undecidable manual S 239 19.0698 134 0.03 50
IV.MC2.EHZ. 2020-12-31T19:02:27.10 0.1 undecidable manual P 188 46.4202 108 -0.28 92
IV.CESI.HHZ. 2020-12-31T19:02:27.22 0.1 negative manual P 220 46.3203 108 -0.15 95
IV.MMO1.EHZ. 2020-12-31T19:02:27.11 0.3 undecidable manual P 175 47.5191 108 -0.43 66
IV.FOSV.EHZ. 2020-12-31T19:02:26.41 0.3 undecidable manual P 265 41.3253 111 -0.23 70
IV.MNTT.EHZ. 2020-12-31T19:02:26.48 0.1 positive manual P 138 39.3273 112 0.12 96
IV.EL6.EHZ. 2020-12-31T19:02:26.52 0.6 undecidable manual S 272 13.6752 145 -0.05 51
IV.COR1.EHZ. 2020-12-31T19:02:26.81 0.3 undecidable manual P 327 40.3263 112 0.31 69
IV.MF5.EHZ. 2020-12-31T19:02:26.59 0.1 positive manual P 158 40.5261 112 0.07 97
IV.SSM1.HNE. 2020-12-31T19:02:26.45 0.6 undecidable manual S 215 13.1757 146 -0.04 51
IV.SENI.HNN. 2020-12-31T19:02:26.72 0.6 undecidable manual P 356 42.2244 111 -0.05 48
IV.CIMA.HNE. 2020-12-31T19:02:25.45 0.3 undecidable manual P 94 32.3454 118 0.08 74
IV.AOI.HHZ. 2020-12-31T19:02:25.14 0.1 undecidable manual P 47 36.5412 114 -0.81 77
IV.CING.HNZ. 2020-12-31T19:02:25.31 0.6 undecidable manual S 312 8.1807 157 -0.56 46
IV.PCRO.HNE. 2020-12-31T19:02:25.91 0.3 undecidable manual P 34 37.7289 113 -0.22 70
IV.SEF1.HNN. 2020-12-31T19:02:25.29 0.3 undecidable manual P 233 32.8449 117 -0.15 73
IV.FDMO.HHZ. 2020-12-31T19:02:25.47 0.1 negative manual P 205 35.3424 115 -0.32 93
IV.CSP1.EHZ. 2020-12-31T19:02:24.31 0.1 negative manual P 192 26.4513 124 -0.29 95
IV.SAP2.EHZ. 2020-12-31T19:02:24.71 0.1 undecidable manual P 158 27.4503 123 -0.01 100
IV.TRE1.HNE. 2020-12-31T19:02:24.92 0.6 undecidable manual S 115 3.7962 169 -0.6 45
IV.SNTG.HHE. 2020-12-31T19:02:24.60 0.1 undecidable manual P 254 27.75 122 -0.17 97
IV.MNTP.HNZ. 2020-12-31T19:02:24.48 0.1 undecidable manual P 142 26.3514 124 -0.1 98
IV.PP3.HNN. 2020-12-31T19:02:24.62 0.3 undecidable manual P 78 27.9498 122 -0.17 72
IV.PF6.EHN. 2020-12-31T19:02:23.63 0.1 undecidable manual P 197 21.7671 130 -0.38 94
IV.MDAR.HNN. 2020-12-31T19:02:23.23 0.3 undecidable manual P 215 18.0708 136 -0.37 71
IV.GAG1.HNE. 2020-12-31T19:02:23.53 0.3 undecidable manual P 239 19.0698 134 -0.18 74
IV.EL6.EHZ. 2020-12-31T19:02:22.94 0.1 negative manual P 272 13.6752 145 -0.23 98
IV.CING.HNZ. 2020-12-31T19:02:22.29 0.3 undecidable manual P 312 8.1807 157 -0.47 70
IV.SSM1.HNE. 2020-12-31T19:02:22.84 0.3 undecidable manual P 215 13.1757 146 -0.28 73
IV.TRE1.HNE. 2020-12-31T19:02:21.97 0.3 undecidable manual P 115 3.7962 169 -0.59 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHE. ML:2.3 0.001185 0.16 AML other m 2020-12-31T19:02:26.77
IV.EL6.EHN. ML:2.4 0.001375 0.18 AML other m 2020-12-31T19:02:27.25
IV.CSP1.EHE. ML:2.4 0.00118 0.5 AML other m 2020-12-31T19:02:29.58
IV.MNTP.HNE. ML:2.7 0.00198 0.18 AML other m 2020-12-31T19:02:29.96
IV.MNTP.HNN. ML:2.4 0.0011385 0.28 AML other m 2020-12-31T19:02:30.31
IV.SAP2.EHE. ML:2.3 0.0008445 0.6 AML other m 2020-12-31T19:02:30.77
IV.SAP2.EHN. ML:3.0 0.003785 0.14 AML other m 2020-12-31T19:02:30.64
IV.FDMO.HHE. ML:1.9 0.0002595 0.18 AML other m 2020-12-31T19:02:31.50
IV.FDMO.HHN. ML:1.8 0.0002 0.62 AML other m 2020-12-31T19:02:31.73
IV.CSP1.EHN. ML:2.4 0.0011 1.72 AML other m 2020-12-31T19:02:32.08
IV.AOI.HHE. ML:1.8 0.000195 0.42 AML other m 2020-12-31T19:02:32.34
IV.AOI.HHN. ML:1.8 0.0001955 0.84 AML other m 2020-12-31T19:02:32.26
IV.FOSV.EHN. ML:1.8 0.0001655 0.58 AML other m 2020-12-31T19:02:33.31
IV.MF5.EHE. ML:2.3 0.0006265000000000001 1.6 AML other m 2020-12-31T19:02:33.08
IV.MF5.EHN. ML:2.3 0.0006919999999999999 1.72 AML other m 2020-12-31T19:02:33.90
IV.FOSV.EHE. ML:1.6 0.0001085 1.6 AML other m 2020-12-31T19:02:34.10
IV.CESI.HHN. ML:2.2 0.0004235 0.14 AML other m 2020-12-31T19:02:34.74
IV.CESI.HHE. ML:1.9 0.0002205 0.2 AML other m 2020-12-31T19:02:34.76
IV.MNTT.EHE. ML:2.3 0.000594 0.2 AML other m 2020-12-31T19:02:34.99
IV.MNTT.EHN. ML:2.4 0.000888 0.64 AML other m 2020-12-31T19:02:35.41
IV.FRON.EHN. ML:1.8 0.00013550000000000001 1.08 AML other m 2020-12-31T19:02:35.62
IV.FRON.EHE. ML:1.6 0.00010020000000000001 0.46 AML other m 2020-12-31T19:02:35.53
IV.NRCA.HHE. ML:2.2 0.000314 1.56 AML other m 2020-12-31T19:02:37.97
IV.ASSB.HHE. ML:1.6 0.0000862 0.2 AML other m 2020-12-31T19:02:38.53
IV.MURB.HNE. ML:2.2 0.0003357 0.54 AML other m 2020-12-31T19:02:39.28
IV.NRCA.HHN. ML:2.0 0.000222 0.14 AML other m 2020-12-31T19:02:39.36
IV.ASSB.HHN. ML:1.8 0.00011094999999999999 0.76 AML other m 2020-12-31T19:02:39.45
IV.MPAG.EHE. ML:1.4 0.0000487 0.64 AML other m 2020-12-31T19:02:39.86
IV.MPAG.EHN. ML:1.4 0.0000574 0.42 AML other m 2020-12-31T19:02:39.63
IV.PIEI.HHE. ML:1.7 0.0000887 0.18 AML other m 2020-12-31T19:02:40.72
IV.MURB.HHE. ML:2.3 0.0003375 0.3 AML other m 2020-12-31T19:02:41.26
IV.OFFI.HHE. ML:2.1 0.0002445 0.54 AML other m 2020-12-31T19:02:41.42
IV.MURB.HNN. ML:2.2 0.00026649999999999997 0.22 AML other m 2020-12-31T19:02:42.12
IV.MURB.HHN. ML:2.2 0.00029949999999999996 0.24 AML other m 2020-12-31T19:02:42.12
IV.GAVE.EHE. ML:2.5 0.0004095 1.74 AML other m 2020-12-31T19:02:42.04
IV.GAVE.EHN. ML:2.2 0.000246 0.26 AML other m 2020-12-31T19:02:43.06
IV.PIEI.HHN. ML:1.5 0.000054900000000000006 0.2 AML other m 2020-12-31T19:02:43.25
IV.OFFI.HHN. ML:2.1 0.000246 0.58 AML other m 2020-12-31T19:02:44.41
IV.CRTC.HHN. ML:1.8 0.00014250000000000002 1.48 AML other m 2020-12-31T19:02:44.98
IV.CRTC.HHE. ML:1.8 0.000124 0.72 AML other m 2020-12-31T19:02:44.98
IV.LNSS.HHN. ML:2.1 0.000148 0.86 AML other m 2020-12-31T19:02:45.01
IV.SMA1.EHE. ML:2.0 0.000156 0.46 AML other m 2020-12-31T19:02:45.81
IV.MOMA.HHN. ML:1.7 0.00006829999999999999 0.46 AML other m 2020-12-31T19:02:45.74
IV.SMA1.EHN. ML:2.1 0.0001725 0.28 AML other m 2020-12-31T19:02:45.60
IV.MOMA.HHE. ML:1.8 0.0000845 0.2 AML other m 2020-12-31T19:02:45.65
IV.TERO.HHN. ML:2.0 0.00011949999999999999 0.54 AML other m 2020-12-31T19:02:46.42
IV.TERO.HHE. ML:1.8 0.00007439999999999999 0.58 AML other m 2020-12-31T19:02:46.59
IV.ARRO.EHE. ML:1.8 0.00006835 0.32 AML other m 2020-12-31T19:02:47.36
IV.LNSS.HHE. ML:1.8 0.00008424999999999999 1.36 AML other m 2020-12-31T19:02:48.94
IV.ARRO.EHN. ML:1.6 0.0000474 1.22 AML other m 2020-12-31T19:02:54.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
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