Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 11-11-2020 and time 21:25:01 (Italy) in region Costa Marchigiana Picena (Ascoli Piceno)

A magnitude ML 1.7 earthquake occured in region: Costa Marchigiana Picena (Ascoli Piceno), on

  • 11-11-2020 20:25:01 (UTC)
  • 11-11-2020 21:25:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 13.9170 at 39 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
Grottammare AP 4 16006 16006
Cupra Marittima AP 6 5398 21404
San Benedetto del Tronto AP 6 47303 68707
Acquaviva Picena AP 10 3831 72538
Monteprandone AP 10 12655 85193
Massignano AP 12 1638 86831
Martinsicuro TE 12 16033 102864
Ripatransone AP 13 4309 107173
Campofilone FM 13 1916 109089
Pedaso FM 13 2800 111889
Colonnella TE 14 3734 115623
Monsampolo del Tronto AP 15 4611 120234
Montefiore dell'Aso AP 15 2123 122357
Altidona FM 16 3390 125747
Spinetoli AP 16 7215 132962
Controguerra TE 17 2436 135398
Lapedona FM 17 1166 136564
Alba Adriatica TE 18 12353 148917
Moresco FM 18 598 149515
Castorano AP 19 2380 151895
Cossignano AP 19 978 152873
Colli del Tronto AP 19 3668 156541
Monterubbiano FM 19 2230 158771
Offida AP 19 5058 163829
Carassai AP 19 1100 164929
Corropoli TE 20 5045 169974

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NE of Teramo (54892 inhabitants)
57 Km NW of Montesilvano (53738 inhabitants)
64 Km NW of Pescara (121014 inhabitants)
74 Km N of Chieti (51815 inhabitants)
76 Km SE of Ancona (100861 inhabitants)
83 Km NE of L'Aquila (69753 inhabitants)
99 Km E of Foligno (57155 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 1.7 2020-11-11
20:25:01		 42.9942 13.9168 39 2021-02-26
14:56:12		 Bollettino Sismico Italiano INGV 85844491
Reviewed
Rev100 		ML 1.7 2020-11-11
20:25:00		 42.9753 13.9462 35 2020-11-11
20:40:42		 Sala Sismica INGV-Roma 84650071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-11 20:25:01 ± 0.28
Latitude 42.9942 ± 0.0108
Longitude 13.9168 ± 0.0221
Depth (km) 39 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85844491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1642
Semi-minor axis of confidence ellipse (meter) 1070
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 1640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 247
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.17897
Epicentral distance of station farthest from the epicenter (degree) 0.60884
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84650071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-11 20:40:42

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 85844491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-14 13:30:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-11-11T20:25:23.90 0.6 undecidable manual S 255 67.5768 93 1.04 32
IV.FDMO.HHZ. 2020-11-11T20:25:23.16 0.6 undecidable manual S 274 67.4769 93 0.33 43
IV.CSP1.EHZ. 2020-11-11T20:25:21.13 0.6 undecidable manual S 281 58.6968 95 0.18 46
IV.TERO.HHZ. 2020-11-11T20:25:19.11 0.6 undecidable manual S 212 48.4182 102 0.36 45
IV.GUMA.HHZ. 2020-11-11T20:25:18.57 0.6 undecidable manual S 279 47.8188 102 -0.04 49
IV.MMO1.EHZ. 2020-11-11T20:25:17.90 0.6 undecidable manual S 258 49.0176 101 -0.98 38
IV.MNTP.HNN. 2020-11-11T20:25:17.08 0.6 undecidable manual S 294 39.627 114 0.14 48
IV.MF5.EHZ. 2020-11-11T20:25:16.05 0.6 undecidable manual S 269 37.1295 117 -0.4 48
IV.MNTT.EHZ. 2020-11-11T20:25:14.94 0.6 undecidable manual S 286 27.1506 132 0.26 47
IV.TRTR.HHE. 2020-11-11T20:25:14.04 0.6 undecidable manual S 181 20.6682 142 0.31 48
IV.NRCA.HHZ. 2020-11-11T20:25:13.99 0.3 undecidable manual P 255 67.5768 93 0.36 65
IV.FDMO.HHZ. 2020-11-11T20:25:13.66 0.3 undecidable manual P 274 67.4769 93 0.04 70
IV.SMA1.EHZ. 2020-11-11T20:25:13.30 0.3 undecidable manual P 230 62.1933 94 0.33 66
IV.CSP1.EHZ. 2020-11-11T20:25:12.57 0.1 undecidable manual P 281 58.6968 95 0.04 95
IV.OFFI.HHZ. 2020-11-11T20:25:12.95 0.3 undecidable manual S 251 19.869 144 -0.68 69
IV.GUMA.HHZ. 2020-11-11T20:25:11.49 0.3 undecidable manual P 279 47.8188 102 0.31 68
IV.MNTP.HNN. 2020-11-11T20:25:10.29 0.3 undecidable manual P 294 39.627 114 0.07 73
IV.TERO.HHZ. 2020-11-11T20:25:10.94 0.3 undecidable manual P 212 48.4182 102 -0.33 70
IV.MMO1.EHZ. 2020-11-11T20:25:10.81 0.1 undecidable manual P 258 49.0176 101 -0.53 90
IV.MF5.EHZ. 2020-11-11T20:25:09.81 0.1 positive manual P 269 37.1295 117 -0.12 100
IV.MNTT.EHZ. 2020-11-11T20:25:09.01 0.1 positive manual P 286 27.1506 132 0.09 99
IV.TRTR.HHE. 2020-11-11T20:25:08.63 0.3 undecidable manual P 181 20.6682 142 0.26 72
IV.OFFI.HHZ. 2020-11-11T20:25:07.97 0.1 undecidable manual P 251 19.869 144 -0.34 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OFFI.HHE. ML:1.9 0.00026292305 0.2176 AML other m 2020-11-11T20:25:14.57
IV.OFFI.HHN. ML:1.8 0.00019204165 0.256 AML other m 2020-11-11T20:25:14.64
IV.MNTT.EHE. ML:2.2 0.00044303655 0.4352 AML other m 2020-11-11T20:25:16.15
IV.MF5.EHE. ML:1.7 0.00011959834999999999 0.3968 AML other m 2020-11-11T20:25:16.44
IV.MF5.EHN. ML:1.5 0.000071678785 1.6288 AML other m 2020-11-11T20:25:17.90
IV.TERO.HNN. ML:1.8 0.00014150778999999999 0.4864 AML other m 2020-11-11T20:25:18.73
IV.GUMA.HHE. ML:1.7 0.000095303915 0.3456 AML other m 2020-11-11T20:25:18.98
IV.TERO.HHE. ML:1.7 0.00010442991 0.2432 AML other m 2020-11-11T20:25:19.67
IV.TERO.HNE. ML:1.8 0.0001385175 0.2688 AML other m 2020-11-11T20:25:19.68
IV.TERO.HHN. ML:1.4 0.000046225795 0.2176 AML other m 2020-11-11T20:25:19.67
IV.GUMA.HNE. ML:2.0 0.00018683815 1.1936 AML other m 2020-11-11T20:25:19.68
IV.CSP1.EHN. ML:1.6 0.000064855605 0.2432 AML other m 2020-11-11T20:25:23.24
IV.CSP1.EHE. ML:1.6 0.00006216104 0.3712 AML other m 2020-11-11T20:25:24.17
IV.FDMO.HHE. ML:1.1 0.00001912626 0.2432 AML other m 2020-11-11T20:25:24.74
IV.NRCA.HHE. ML:1.8 0.00008320306999999999 0.1664 AML other m 2020-11-11T20:25:26.07
IV.NRCA.HHN. ML:1.5 0.000050371065 0.1408 AML other m 2020-11-11T20:25:26.25
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