Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 30-12-2020 and time 12:32:38 (Italy) in region 3 km NE Sant'Angelo in Pontano (MC)

A magnitude ML 1.9 earthquake occured in region: 3 km NE Sant'Angelo in Pontano (MC), on

  • 30-12-2020 11:32:38 (UTC)
  • 30-12-2020 12:32:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1240, 13.4110 at 21 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
Sant'Angelo in Pontano MC 3 1436 1436
Ripe San Ginesio MC 4 852 2288
Loro Piceno MC 5 2401 4689
Montappone FM 5 1682 6371
Falerone FM 6 3337 9708
Massa Fermana FM 6 963 10671
Monte Vidon Corrado FM 6 731 11402
Colmurano MC 6 1263 12665
Penna San Giovanni MC 8 1108 13773
San Ginesio MC 8 3498 17271
Servigliano FM 8 2336 19607
Gualdo MC 9 815 20422
Urbisaglia MC 9 2628 23050
Mogliano MC 9 4696 27746
Montegiorgio FM 10 6851 34597
Monte San Martino MC 11 765 35362
Belmonte Piceno FM 11 646 36008
Camporotondo di Fiastrone MC 12 563 36571
Petriolo MC 12 1998 38569
Cessapalombo MC 12 512 39081
Monteleone di Fermo FM 13 395 39476
Francavilla d'Ete FM 13 964 40440
Sarnano MC 13 3264 43704
Monsampietro Morico FM 13 659 44363
Santa Vittoria in Matenano FM 14 1330 45693
Smerillo FM 14 365 46058
Tolentino MC 14 20069 66127
Magliano di Tenna FM 14 1452 67579
Belforte del Chienti MC 15 1886 69465
Caldarola MC 15 1823 71288
Rapagnano FM 15 2145 73433
Montelparo FM 16 778 74211
Montefalcone Appennino FM 16 424 74635
Grottazzolina FM 16 3398 78033
Monte San Pietrangeli FM 16 2458 80491
Montottone FM 16 979 81470
Corridonia MC 16 15430 96900
Amandola FM 17 3629 100529
Pollenza MC 17 6618 107147
Torre San Patrizio FM 17 2048 109195
Monte Rinaldo FM 18 379 109574
Monte Giberto FM 18 801 110375
Comunanza AP 18 3166 113541
Serrapetrona MC 19 966 114507
Force AP 19 1354 115861
Ortezzano FM 19 774 116635
Monte San Giusto MC 20 8191 124826
Monte Vidon Combatte FM 20 433 125259
Macerata MC 20 42473 167732

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km S of Ancona (100861 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
60 Km E of Foligno (57155 inhabitants)
83 Km E of Perugia (166134 inhabitants)
86 Km N of L'Aquila (69753 inhabitants)
86 Km SE of Fano (60888 inhabitants)
88 Km NE of Terni (111501 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
96 Km SE of Pesaro (94582 inhabitants)
98 Km NW of Pescara (121014 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 1.9 2020-12-30
11:32:38		 43.1243 13.4107 21 2021-02-26
14:56:14		 Bollettino Sismico Italiano INGV 86203321
Reviewed
Rev100 		ML 1.9 2020-12-30
11:32:38		 43.1308 13.4138 22 2020-12-30
11:43:11		 Sala Sismica INGV-Roma 85878651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-30 11:32:38 ± 0.11
Latitude 43.1243 ± 0.0045
Longitude 13.4107 ± 0.0062
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86203321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 576
Semi-minor axis of confidence ellipse (meter) 102
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.02878
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 86203321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-27 16:19:15

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 85878651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-30 11:43:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2020-12-30T11:32:58.88 0.6 undecidable manual S 305 61.3941 101 1 33
IV.TERO.HHZ. 2020-12-30T11:32:57.51 0.6 undecidable manual S 164 57.7977 102 0.57 41
IV.CESI.HHZ. 2020-12-30T11:32:53.69 0.6 undecidable manual S 252 43.1235 107 0.56 42
IV.NRCA.HHZ. 2020-12-30T11:32:52.65 0.6 undecidable manual S 217 40.2264 109 0.24 46
IV.EL6.EHZ. 2020-12-30T11:32:51.11 0.6 undecidable manual S 312 33.744 113 0.31 45
IV.MC2.EHZ. 2020-12-30T11:32:50.16 0.6 undecidable manual S 217 29.6481 117 0.35 46
IV.CING.HHZ. 2020-12-30T11:32:50.56 0.6 undecidable manual S 328 32.8449 114 -0.01 48
IV.SSFR.HHZ. 2020-12-30T11:32:50.06 0.3 undecidable manual P 305 61.3941 101 0.25 65
IV.TERO.HHZ. 2020-12-30T11:32:49.52 0.3 undecidable manual P 164 57.7977 102 0.26 66
IV.FDMO.HHZ. 2020-12-30T11:32:49.50 0.6 undecidable manual S 250 27.9498 119 0.1 48
IV.MMO1.EHZ. 2020-12-30T11:32:48.88 0.6 undecidable manual S 195 25.8519 121 -0.04 48
IV.CESI.HHZ. 2020-12-30T11:32:47.06 0.3 undecidable manual P 252 43.1235 107 -0.01 72
IV.CSP1.EHZ. 2020-12-30T11:32:47.06 0.3 undecidable manual S 258 17.0718 135 0.01 75
IV.MF5.EHZ. 2020-12-30T11:32:47.14 0.6 undecidable manual S 165 15.6732 137 0.35 47
IV.MNTT.EHZ. 2020-12-30T11:32:47.71 0.6 undecidable manual S 115 16.4724 136 0.77 41
IV.PF6.EHZ. 2020-12-30T11:32:46.95 0.3 undecidable manual S 275 17.5713 134 -0.2 72
IV.NRCA.HHZ. 2020-12-30T11:32:46.43 0.1 undecidable manual P 217 40.2264 109 -0.22 92
IV.MNTP.HNZ. 2020-12-30T11:32:45.45 0.3 undecidable manual S 73 4.995 165 0.07 76
IV.MC2.EHZ. 2020-12-30T11:32:45.04 0.1 undecidable manual P 217 29.6481 117 -0.1 96
IV.SAP2.EHZ. 2020-12-30T11:32:45.18 0.3 undecidable manual S 197 3.1968 170 -0.1 75
IV.CING.HHZ. 2020-12-30T11:32:45.32 0.1 undecidable manual P 328 32.8449 114 -0.27 93
IV.GUMA.HHZ. 2020-12-30T11:32:45.94 0.3 undecidable manual S 222 9.1797 153 0.15 74
IV.EL6.EHZ. 2020-12-30T11:32:45.57 0.1 undecidable manual P 312 33.744 113 -0.15 95
IV.MMO1.EHZ. 2020-12-30T11:32:44.35 0.1 undecidable manual P 195 25.8519 121 -0.28 93
IV.FDMO.HHZ. 2020-12-30T11:32:44.64 0.3 undecidable manual P 250 27.9498 119 -0.27 70
IV.MF5.EHZ. 2020-12-30T11:32:43.43 0.1 undecidable manual P 165 15.6732 137 0.03 100
IV.PF6.EHZ. 2020-12-30T11:32:43.28 0.3 undecidable manual P 275 17.5713 134 -0.33 70
IV.MNTT.EHZ. 2020-12-30T11:32:43.62 0.1 undecidable manual P 115 16.4724 136 0.13 97
IV.CSP1.EHZ. 2020-12-30T11:32:43.36 0.1 undecidable manual P 258 17.0718 135 -0.19 96
IV.MNTP.HNZ. 2020-12-30T11:32:42.33 0.1 undecidable manual P 73 4.995 165 -0.26 97
IV.SAP2.EHZ. 2020-12-30T11:32:42.32 0.3 undecidable manual P 197 3.1968 170 -0.21 74
IV.GUMA.HHZ. 2020-12-30T11:32:42.69 0.1 undecidable manual P 222 9.1797 153 -0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTP.HNN. ML:1.9 0.0006710597499999999 0.128 AML other m 2020-12-30T11:32:45.53
IV.MNTP.HNE. ML:2.4 0.0018050000000000002 0.14 AML other m 2020-12-30T11:32:45.48
IV.SAP2.EHE. ML:2.1 0.0009519999999999999 0.28 AML other m 2020-12-30T11:32:45.70
IV.SAP2.EHN. ML:2.5 0.0023134982 1.8592 AML other m 2020-12-30T11:32:45.99
IV.MF5.EHE. ML:1.8 0.00040754275 0.3008 AML other m 2020-12-30T11:32:47.33
IV.MF5.EHN. ML:1.6 0.0002384228 0.096 AML other m 2020-12-30T11:32:47.45
IV.MNTT.EHN. ML:2.0 0.0006485 0.2 AML other m 2020-12-30T11:32:47.97
IV.MNTT.EHE. ML:1.8 0.00041500000000000006 0.3 AML other m 2020-12-30T11:32:49.27
IV.FDMO.HHN. ML:1.2 0.00006582445 0.2624 AML other m 2020-12-30T11:32:49.60
IV.FDMO.HHE. ML:1.5 0.0001235 0.16 AML other m 2020-12-30T11:32:50.21
IV.EL6.EHE. ML:1.5 0.000105477115 0.2368 AML other m 2020-12-30T11:32:51.38
IV.EL6.EHN. ML:1.5 0.00011392379 0.1984 AML other m 2020-12-30T11:32:51.40
IV.NRCA.HNE. ML:2.0 0.00034160695 1.8592 AML other m 2020-12-30T11:32:53.00
IV.NRCA.HHE. ML:2.1 0.0003724901 1.8592 AML other m 2020-12-30T11:32:53.93
IV.NRCA.HNN. ML:1.9 0.00025717584999999997 0.128 AML other m 2020-12-30T11:32:53.07
IV.NRCA.HHN. ML:1.9 0.0002488811 0.1408 AML other m 2020-12-30T11:32:53.07
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