Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 30-09-2020 and time 22:53:19 (Italy) in region 3 km NW Comunanza (AP)

A magnitude ML 1.4 earthquake occured in region: 3 km NW Comunanza (AP), on

  • 30-09-2020 20:53:19 (UTC)
  • 30-09-2020 22:53:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9870, 13.4000 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
Comunanza AP 3 3166 3166
Amandola FM 4 3629 6795
Smerillo FM 4 365 7160
Montefalcone Appennino FM 5 424 7584
Monte San Martino MC 6 765 8349
Montefortino FM 7 1178 9527
Force AP 8 1354 10881
Penna San Giovanni MC 8 1108 11989
Santa Vittoria in Matenano FM 9 1330 13319
Sarnano MC 10 3264 16583
Gualdo MC 10 815 17398
Palmiano AP 11 196 17594
Montemonaco AP 11 604 18198
Montelparo FM 12 778 18976
Sant'Angelo in Pontano MC 13 1436 20412
Monteleone di Fermo FM 13 395 20807
Servigliano FM 13 2336 23143
Rotella AP 14 906 24049
Bolognola MC 14 142 24191
Venarotta AP 14 2066 26257
Falerone FM 15 3337 29594
San Ginesio MC 15 3498 33092
Roccafluvione AP 15 2010 35102
Montedinove AP 15 488 35590
Monte Rinaldo FM 16 379 35969
Monsampietro Morico FM 16 659 36628
Belmonte Piceno FM 16 646 37274
Monte Vidon Corrado FM 17 731 38005
Montalto delle Marche AP 17 2122 40127
Montegallo AP 17 523 40650
Montottone FM 17 979 41629
Montappone FM 18 1682 43311
Ripe San Ginesio MC 18 852 44163
Ortezzano FM 18 774 44937
Cessapalombo MC 18 512 45449
Acquacanina MC 19 121 45570
Castignano AP 19 2796 48366
Massa Fermana FM 19 963 49329
Camporotondo di Fiastrone MC 20 563 49892
Montegiorgio FM 20 6851 56743
Loro Piceno MC 20 2401 59144
Colmurano MC 20 1263 60407

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of Teramo (54892 inhabitants)
57 Km E of Foligno (57155 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
71 Km S of Ancona (100861 inhabitants)
78 Km NE of Terni (111501 inhabitants)
81 Km NW of Montesilvano (53738 inhabitants)
83 Km E of Perugia (166134 inhabitants)
88 Km NW of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
100 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
Bulletin
Rev1000 		ML 1.4 2020-09-30
20:53:19		 42.9873 13.3997 21 2021-02-26
14:56:12		 Bollettino Sismico Italiano INGV 85793381
Reviewed
Rev100 		ML 1.4 2020-09-30
20:53:19		 42.985 13.3932 20 2020-09-30
21:00:08		 Sala Sismica INGV-Roma 83395801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-30 20:53:19 ± 0.1
Latitude 42.9873 ± 0.0036
Longitude 13.3997 ± 0.0049
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 85793381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 428
Semi-minor axis of confidence ellipse (meter) 113
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.39390
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 83395801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-30 21:00:08

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 85793381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 13:22:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HNZ. 2020-09-30T20:53:34.89 0.6 undecidable manual S 158 43.7229 107 0.46 45
IV.SMA1.EHZ. 2020-09-30T20:53:33.67 0.6 undecidable manual S 188 39.9267 109 0.2 47
IV.NRCA.HHZ. 2020-09-30T20:53:31.20 0.6 undecidable manual S 234 28.749 118 0.46 45
IV.FDMO.HHZ. 2020-09-30T20:53:30.32 0.3 undecidable manual S 282 25.9518 121 0.25 71
IV.PF6.EHE. 2020-09-30T20:53:29.46 0.3 undecidable manual S 315 23.5542 124 -0.09 75
IV.MTRA.EHZ. 2020-09-30T20:53:29.88 0.3 undecidable manual S 181 25.5522 122 -0.12 72
IV.MC2.EHZ. 2020-09-30T20:53:29.11 0.6 undecidable manual S 244 19.0698 131 0.51 45
IV.MNTP.HNZ. 2020-09-30T20:53:28.44 0.6 undecidable manual S 19 17.5713 134 0.14 49
IV.MNTT.EHZ. 2020-09-30T20:53:28.74 0.6 undecidable manual S 62 17.9709 133 0.38 46
IV.TERO.HNZ. 2020-09-30T20:53:28.44 0.3 undecidable manual P 158 43.7229 107 0.15 71
IV.CSP1.EHZ. 2020-09-30T20:53:28.88 0.3 undecidable manual S 306 19.5693 130 0.18 72
IV.SAP2.EHZ. 2020-09-30T20:53:27.38 0.6 undecidable manual S 360 12.0768 146 0.03 50
IV.SMA1.EHZ. 2020-09-30T20:53:27.50 0.1 undecidable manual P 188 39.9267 109 -0.23 92
IV.MMO1.EHZ. 2020-09-30T20:53:27.07 0.6 undecidable manual S 211 11.3775 147 -0.18 49
IV.MF5.EHZ. 2020-09-30T20:53:26.35 0.6 undecidable manual S 89 4.8951 165 -0.19 50
IV.NRCA.HHZ. 2020-09-30T20:53:26.17 0.1 positive manual P 234 28.749 118 0.01 99
IV.FDMO.HHZ. 2020-09-30T20:53:25.73 0.1 positive manual P 282 25.9518 121 -0.05 99
IV.MC2.EHZ. 2020-09-30T20:53:25.02 0.1 undecidable manual P 244 19.0698 131 0.1 99
IV.OFFI.HHZ. 2020-09-30T20:53:25.84 0.1 undecidable manual P 104 23.9538 124 0.33 94
IV.PF6.EHE. 2020-09-30T20:53:25.24 0.1 undecidable manual P 315 23.5542 124 -0.23 96
IV.MTRA.EHZ. 2020-09-30T20:53:25.47 0.3 undecidable manual P 181 25.5522 122 -0.26 70
IV.CSP1.EHZ. 2020-09-30T20:53:24.92 0.1 positive manual P 306 19.5693 130 -0.06 100
IV.SAP2.EHZ. 2020-09-30T20:53:24.11 0.3 undecidable manual P 360 12.0768 146 -0.1 76
IV.MNTP.HNZ. 2020-09-30T20:53:24.56 0.1 undecidable manual P 19 17.5713 134 -0.19 98
IV.MNTT.EHZ. 2020-09-30T20:53:24.72 0.1 negative manual P 62 17.9709 133 -0.07 100
IV.MF5.EHZ. 2020-09-30T20:53:23.54 0.1 undecidable manual P 89 4.8951 165 -0.19 100
IV.MMO1.EHZ. 2020-09-30T20:53:23.93 0.1 undecidable manual P 211 11.3775 147 -0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHE. ML:1.7 0.0003915 0.42 AML other m 2020-09-30T20:53:26.73
IV.MF5.EHN. ML:1.6 0.0003165 0.4 AML other m 2020-09-30T20:53:26.92
IV.SAP2.EHN. ML:2.1 0.0008580000000000001 0.16 AML other m 2020-09-30T20:53:27.87
IV.SAP2.EHE. ML:1.5 0.00021300000000000003 1.7 AML other m 2020-09-30T20:53:28.94
IV.MNTT.EHE. ML:1.4 0.00013000000000000002 0.28 AML other m 2020-09-30T20:53:28.95
IV.CSP1.EHE. ML:1.6 0.0002135 0.56 AML other m 2020-09-30T20:53:29.01
IV.MNTT.EHN. ML:1.3 0.00011245 0.6 AML other m 2020-09-30T20:53:29.08
IV.CSP1.EHN. ML:1.6 0.00020899999999999998 0.26 AML other m 2020-09-30T20:53:29.64
IV.MTRA.EHE. ML:1.3 0.00008510000000000001 1.8 AML other m 2020-09-30T20:53:29.97
IV.FDMO.HHE. ML:1.2 0.00006875 0.2 AML other m 2020-09-30T20:53:30.51
IV.FDMO.HHN. ML:1.1 0.00005305 0.14 AML other m 2020-09-30T20:53:30.55
IV.MTRA.EHN. ML:1.2 0.0000699 0.7 AML other m 2020-09-30T20:53:30.97
IV.NRCA.HHE. ML:1.6 0.000154 0.14 AML other m 2020-09-30T20:53:31.82
IV.NRCA.HHN. ML:1.5 0.000129 0.14 AML other m 2020-09-30T20:53:31.85
IV.SMA1.EHN. ML:0.9 0.000022850000000000003 1.3 AML other m 2020-09-30T20:53:34.09
IV.SMA1.EHE. ML:0.9 0.00002305 0.56 AML other m 2020-09-30T20:53:34.60
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