Earthquake with magnitude of ML 1.3 on date 22-10-2020 and time 09:36:17 (UTC) in region 3 km W Ascoli Piceno (AP)

A magnitude ML 1.3 earthquake occured in region: 3 km W Ascoli Piceno (AP), on

  • 22-10-2020 09:36:17 (UTC)
  • 22-10-2020 11:36:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.54 at 19 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ascoli Piceno AP 3 49407 49407
Venarotta AP 4 2066 51473
Roccafluvione AP 5 2010 53483
Palmiano AP 8 196 53679
Folignano AP 9 9241 62920
Rotella AP 11 906 63826
Castignano AP 11 2796 66622
Appignano del Tronto AP 11 1785 68407
Force AP 12 1354 69761
Maltignano AP 13 2401 72162
Montedinove AP 13 488 72650
Valle Castellana TE 14 977 73627
Castel di Lama AP 14 8634 82261
Civitella del Tronto TE 14 5116 87377
Acquasanta Terme AP 15 2916 90293
Comunanza AP 15 3166 93459
Sant'Egidio alla Vibrata TE 15 9811 103270
Offida AP 15 5058 108328
Montalto delle Marche AP 15 2122 110450
Montefalcone Appennino FM 16 424 110874
Castorano AP 16 2380 113254
Montegallo AP 17 523 113777
Ancarano TE 17 1857 115634
Colli del Tronto AP 17 3668 119302
Montelparo FM 18 778 120080
Montemonaco AP 18 604 120684
Smerillo FM 18 365 121049
Santa Vittoria in Matenano FM 18 1330 122379
Montefortino FM 18 1178 123557
Cossignano AP 19 978 124535
Monte Rinaldo FM 19 379 124914
Campli TE 19 7209 132123
Rocca Santa Maria TE 19 537 132660
Spinetoli AP 20 7215 139875
Amandola FM 20 3629 143504
Ortezzano FM 20 774 144278

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Teramo (54892 inhabitants)
58 Km N of L'Aquila (69753 inhabitants)
63 Km NW of Montesilvano (53738 inhabitants)
69 Km E of Foligno (57155 inhabitants)
71 Km NW of Pescara (121014 inhabitants)
77 Km NW of Chieti (51815 inhabitants)
80 Km E of Terni (111501 inhabitants)
84 Km S of Ancona (100861 inhabitants)
97 Km E of Perugia (166134 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2020-10-22
09:36:17
42.86 13.54 19 2020-10-22
09:43:32
Sala Sismica INGV-Roma 84022071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 09:36:17 ± 0.09
Latitude 42.86 ± 0.00
Longitude 13.54 ± 0.00
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84022071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 457
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 460
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 192
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.1385
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 15
Type of magnitude ML
Reference to an origin 84022071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-22 09:43:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-10-22T09:36:31.91 0.3 undecidable manual S 298 0.3732 105 0.16 70
IV.NRCA.HHZ. 2020-10-22T09:36:30.13 0.6 undecidable manual S 265 0.3112 109 0.12 48
IV.SMA1.EHZ. 2020-10-22T09:36:29.13 0.3 undecidable manual S 213 0.2743 112 0.15 71
IV.TERO.HHZ. 2020-10-22T09:36:28.16 0.3 undecidable manual S 168 0.2437 115 0.02 74
IV.MC2.EHZ. 2020-10-22T09:36:28.39 0.6 undecidable manual S 281 0.2599 113 -0.2 47
IV.MTRA.EHZ. 2020-10-22T09:36:25.63 0.1 undecidable manual S 225 0.1466 132 -0.12 99
IV.FDMO.HHZ. 2020-10-22T09:36:25.80 0.3 positive manual P 298 0.3732 105 -0.13 70
IV.NRCA.HHZ. 2020-10-22T09:36:24.88 0.3 positive manual P 265 0.3112 109 -0.05 73
IV.MC2.EHZ. 2020-10-22T09:36:24.17 0.6 negative manual P 281 0.2599 113 0.07 49
IV.SMA1.EHZ. 2020-10-22T09:36:24.32 0.1 positive manual P 213 0.2743 112 -0.01 98
IV.TERO.HHZ. 2020-10-22T09:36:23.84 0.3 negative manual P 168 0.2437 115 -0.01 74
IV.MTRA.EHZ. 2020-10-22T09:36:22.41 0.1 positive manual P 225 0.1466 132 -0.05 100
IV.MF5.EHZ. 2020-10-22T09:36:22.51 0.6 negative manual P 336 0.1385 134 0.16 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.4 0.000158 0.5 AML other m 2020-10-22T09:36:25.93
IV.MTRA.EHN. ML:1.1 8.92E-5 1.76 AML other m 2020-10-22T09:36:26.90
IV.TERO.HHN. ML:1.3 8.36E-5 0.18 AML other m 2020-10-22T09:36:28.44
IV.TERO.HHE. ML:1.4 0.0001034 0.14 AML other m 2020-10-22T09:36:28.41
IV.NRCA.HHN. ML:1.5 0.000125 0.1 AML other m 2020-10-22T09:36:30.41
IV.NRCA.HHE. ML:1.6 0.0001615 0.08 AML other m 2020-10-22T09:36:30.70
IV.MTRA.HNN. ML:1.1 8.394585E-5 0.0576 AML other m 2020-10-22T09:36:25.87
IV.TERO.HNN. ML:1.3 9.0075415E-5 0.224 AML other m 2020-10-22T09:36:28.63
IV.TERO.HNE. ML:1.5 0.0001477748 0.2368 AML other m 2020-10-22T09:36:28.41
IV.SMA1.EHE. ML:0.9 3.193715E-5 0.6208 AML other m 2020-10-22T09:36:29.44
IV.SMA1.EHN. ML:1 3.831245E-5 0.1216 AML other m 2020-10-22T09:36:29.35
IV.NRCA.HNN. ML:1.4 0.00010212659 0.0896 AML other m 2020-10-22T09:36:30.46
IV.NRCA.HNE. ML:1.6 0.00015664065 0.0768 AML other m 2020-10-22T09:36:30.70
IV.FDMO.HHN. ML:0.7 1.377673E-5 0.3008 AML other m 2020-10-22T09:36:32.51
IV.FDMO.HHE. ML:0.5 1.1028793E-5 0.1024 AML other m 2020-10-22T09:36:32.07
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download