Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 22-12-2020 and time 08:51:37 (UTC) in region 2 km N Santa Vittoria in Matenano (FM)

A magnitude ML 1.1 earthquake occured in region: 2 km N Santa Vittoria in Matenano (FM), on

  • 22-12-2020 08:51:37 (UTC)
  • 22-12-2020 09:51:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.0360, 13.5000 at 24 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
Santa Vittoria in Matenano FM 2 1330 1330
Monteleone di Fermo FM 3 395 1725
Montelparo FM 4 778 2503
Monte San Martino MC 5 765 3268
Servigliano FM 5 2336 5604
Smerillo FM 6 365 5969
Monsampietro Morico FM 6 659 6628
Montefalcone Appennino FM 6 424 7052
Penna San Giovanni MC 7 1108 8160
Monte Rinaldo FM 7 379 8539
Belmonte Piceno FM 7 646 9185
Montottone FM 8 979 10164
Force AP 8 1354 11518
Falerone FM 8 3337 14855
Ortezzano FM 9 774 15629
Monte Vidon Corrado FM 10 731 16360
Montedinove AP 10 488 16848
Montalto delle Marche AP 10 2122 18970
Rotella AP 10 906 19876
Monte Vidon Combatte FM 11 433 20309
Montegiorgio FM 11 6851 27160
Sant'Angelo in Pontano MC 11 1436 28596
Comunanza AP 11 3166 31762
Montappone FM 11 1682 33444
Grottazzolina FM 12 3398 36842
Monte Giberto FM 12 801 37643
Massa Fermana FM 13 963 38606
Amandola FM 13 3629 42235
Petritoli FM 13 2335 44570
Magliano di Tenna FM 14 1452 46022
Gualdo MC 14 815 46837
Castignano AP 15 2796 49633
Ponzano di Fermo FM 15 1674 51307
Carassai AP 15 1100 52407
Palmiano AP 16 196 52603
Rapagnano FM 16 2145 54748
Loro Piceno MC 16 2401 57149
Ripe San Ginesio MC 16 852 58001
Sarnano MC 16 3264 61265
Cossignano AP 16 978 62243
Montefortino FM 17 1178 63421
Mogliano MC 17 4696 68117
San Ginesio MC 17 3498 71615
Venarotta AP 17 2066 73681
Francavilla d'Ete FM 18 964 74645
Colmurano MC 18 1263 75908
Monterubbiano FM 19 2230 78138
Monte San Pietrangeli FM 19 2458 80596
Torre San Patrizio FM 19 2048 82644
Offida AP 19 5058 87702
Roccafluvione AP 20 2010 89712
Moresco FM 20 598 90310

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Teramo (54892 inhabitants)
65 Km S of Ancona (100861 inhabitants)
65 Km E of Foligno (57155 inhabitants)
77 Km N of L'Aquila (69753 inhabitants)
79 Km NW of Montesilvano (53738 inhabitants)
86 Km NW of Pescara (121014 inhabitants)
87 Km NE of Terni (111501 inhabitants)
91 Km E of Perugia (166134 inhabitants)
94 Km NW of Chieti (51815 inhabitants)
98 Km SE of Fano (60888 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 1.1 2020-12-22
08:51:37		 43.0363 13.5005 24 2020-12-22
09:01:10		 Sala Sismica INGV-Roma 85623941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 08:51:37 ± 0.17
Latitude 43.0363 ± 0.0063
Longitude 13.5005 ± 0.0086
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85623941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 587
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41998
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 85623941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 09:01:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IACL.HHZ. 2020-12-22T08:53:38.81 3.0 undecidable manual Sn 2.38 0
IV.TDS.HHZ. 2020-12-22T08:53:36.59 3.0 undecidable manual Sg 13.94 0
IV.SPS2.HHZ. 2020-12-22T08:53:30.78 3.0 undecidable manual Sn 0.32 0
IV.PIPA.HHZ. 2020-12-22T08:53:29.15 3.0 undecidable manual Sn -2.01 0
GE.MATE.HHZ. 2020-12-22T08:53:22.18 3.0 undecidable manual Sg 14.43 0
IV.IVPL.HHZ. 2020-12-22T08:52:58.60 3.0 undecidable manual Pg 11.19 0
IV.PIPA.HHZ. 2020-12-22T08:52:57.23 3.0 negative manual Pg 16.07 0
IV.MSRU.HHZ. 2020-12-22T08:52:55.11 3.0 positive manual Pn 4.76 0
IV.MTMR.EHZ. 2020-12-22T08:52:48.99 3.0 undecidable manual Sg 5.38 0
OT.TAR1.HHZ. 2020-12-22T08:52:40.22 3.0 undecidable manual Pg 6.66 0
IV.CPOZ.HHZ. 2020-12-22T08:52:39.80 3.0 undecidable manual Sn -0.75 0
IV.SARZ.HHZ. 2020-12-22T08:52:33.88 3.0 negative manual Pn -2.7 0
IV.BRES.EHZ. 2020-12-22T08:52:33.72 3.0 undecidable manual Pn -4.13 0
IV.CPOZ.HHZ. 2020-12-22T08:52:13.47 3.0 negative manual Pg 0.74 0
IV.BRSN.EHZ. 2020-12-22T08:52:08.72 3.0 positive manual Pg 1.74 0
IV.PESA.HHZ. 2020-12-22T08:51:53.98 3.0 undecidable manual Pn -4.85 0
IV.NRCA.HHZ. 2020-12-22T08:51:51.04 0.6 undecidable manual S 234 38.628 114 0.24 47
IV.FDMO.HHZ. 2020-12-22T08:51:49.99 0.6 undecidable manual S 270 33.5442 118 0.41 46
IV.MC2.EHZ. 2020-12-22T08:51:48.63 0.3 undecidable manual S 241 28.8489 123 0.12 73
IV.CSP1.EHZ. 2020-12-22T08:51:47.97 0.6 undecidable manual S 284 24.753 128 0.36 47
IV.MMO1.EHZ. 2020-12-22T08:51:46.53 0.3 undecidable manual S 223 20.7681 133 -0.27 71
IV.TERO.HHN. 2020-12-22T08:51:46.51 0.1 undecidable manual P 170 46.62 110 0.27 91
IV.MNTT.EHZ. 2020-12-22T08:51:45.09 0.6 undecidable manual S 70 8.1807 158 0.19 49
IV.GUMA.HNZ. 2020-12-22T08:51:45.15 0.6 undecidable manual S 282 13.6752 146 -0.43 46
IV.NRCA.HHZ. 2020-12-22T08:51:45.03 0.3 negative manual P 234 38.628 114 -0.06 72
IV.SAP2.EHZ. 2020-12-22T08:51:45.30 0.3 undecidable manual S 309 10.5783 153 0.14 74
IV.FDMO.HHZ. 2020-12-22T08:51:44.38 0.6 positive manual P 270 33.5442 118 0 49
IV.MF5.EHZ. 2020-12-22T08:51:44.74 0.3 undecidable manual S 212 6.2937 163 0.01 77
IV.MC2.EHZ. 2020-12-22T08:51:43.83 1.0 positive manual P 241 28.8489 123 0.07 25
IV.CSP1.EHZ. 2020-12-22T08:51:43.29 0.1 undecidable manual P 284 24.753 128 0.04 99
IV.MMO1.EHZ. 2020-12-22T08:51:42.59 0.1 positive manual P 223 20.7681 133 -0.19 96
IV.GUMA.HNZ. 2020-12-22T08:51:42.01 0.1 undecidable manual P 282 13.6752 146 -0.07 100
IV.MF5.EHZ. 2020-12-22T08:51:41.36 0.3 undecidable manual P 212 6.2937 163 -0.23 74
IV.SAP2.EHZ. 2020-12-22T08:51:41.61 0.3 undecidable manual P 309 10.5783 153 -0.22 73
IV.MNTT.EHZ. 2020-12-22T08:51:41.63 0.6 undecidable manual P 70 8.1807 158 -0.05 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHE. ML:0.5 0.000021576295000000002 0.16 AML other m 2020-12-22T08:51:44.87
IV.MF5.EHN. ML:0.8 0.00003869352 0.3968 AML other m 2020-12-22T08:51:45.32
IV.MNTT.EHE. ML:1.5 0.00021363325 0.4416 AML other m 2020-12-22T08:51:45.37
IV.MNTT.EHN. ML:1.9 0.0004747819 0.224 AML other m 2020-12-22T08:51:45.19
IV.CSP1.EHE. ML:1.3 0.000082984745 0.2432 AML other m 2020-12-22T08:51:48.26
IV.CSP1.EHN. ML:1.2 0.000070855695 0.1216 AML other m 2020-12-22T08:51:48.43
IV.FDMO.HHE. ML:0.8 0.000018742075 0.32 AML other m 2020-12-22T08:51:50.22
IV.FDMO.HHN. ML:0.9 0.000023725875 0.2432 AML other m 2020-12-22T08:51:50.29
IV.NRCA.HHE. ML:1.3 0.000053853940000000006 0.0832 AML other m 2020-12-22T08:51:51.68
IV.NRCA.HHN. ML:1.1 0.00003774866 0.0576 AML other m 2020-12-22T08:51:51.71
IV.NRCA.HNE. ML:1.3 0.00006184772500000001 0.2816 AML other m 2020-12-22T08:51:51.41
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