Earthquake with magnitude of ML 0.9 on date 24-10-2020 and time 08:24:31 (Italy) in region 2 km NW Ascoli Piceno (AP)

A magnitude ML 0.9 earthquake occured in region: 2 km NW Ascoli Piceno (AP), on

  • 24-10-2020 06:24:31 (UTC)
  • 24-10-2020 08:24:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.56 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.

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 2 49407 49407
Venarotta AP 6 2066 51473
Roccafluvione AP 7 2010 53483
Folignano AP 7 9241 62724
Palmiano AP 9 196 62920
Appignano del Tronto AP 9 1785 64705
Castignano AP 10 2796 67501
Rotella AP 10 906 68407
Maltignano AP 11 2401 70808
Montedinove AP 12 488 71296
Castel di Lama AP 12 8634 79930
Force AP 13 1354 81284
Civitella del Tronto TE 13 5116 86400
Sant'Egidio alla Vibrata TE 13 9811 96211
Offida AP 13 5058 101269
Castorano AP 14 2380 103649
Montalto delle Marche AP 14 2122 105771
Ancarano TE 15 1857 107628
Valle Castellana TE 15 977 108605
Colli del Tronto AP 15 3668 112273
Comunanza AP 16 3166 115439
Montefalcone Appennino FM 16 424 115863
Acquasanta Terme AP 16 2916 118779
Cossignano AP 17 978 119757
Montelparo FM 17 778 120535
Spinetoli AP 18 7215 127750
Torano Nuovo TE 18 1611 129361
Santa Vittoria in Matenano FM 18 1330 130691
Smerillo FM 18 365 131056
Campli TE 18 7209 138265
Monte Rinaldo FM 18 379 138644
Montegallo AP 19 523 139167
Monsampolo del Tronto AP 19 4611 143778
Ortezzano FM 19 774 144552
Montemonaco AP 20 604 145156
Rocca Santa Maria TE 20 537 145693

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Teramo (54892 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
62 Km NW of Montesilvano (53738 inhabitants)
69 Km NW of Pescara (121014 inhabitants)
71 Km E of Foligno (57155 inhabitants)
76 Km NW of Chieti (51815 inhabitants)
82 Km E of Terni (111501 inhabitants)
84 Km S of Ancona (100861 inhabitants)
99 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 0.9 2020-10-24
06:24:31
42.86 13.56 24 2020-10-24
06:33:08
Sala Sismica INGV-Roma 84080581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-24 06:24:31 ± 0.11
Latitude 42.86 ± 0.00
Longitude 13.56 ± 0.01
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 84080581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 616
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 204
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 84080581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-24 06:33:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CR.STON.BHZ. 2020-10-24T06:26:00.68 3.0 undecidable manual Sn -2.28 0
IV.CAPR.HNZ. 2020-10-24T06:25:54.39 3.0 undecidable manual Sn -1.77 0
IV.VULT.HHZ. 2020-10-24T06:25:44.87 3.0 undecidable manual Sn 1.86 0
CR.STON.BHZ. 2020-10-24T06:25:24.28 3.0 positive manual Pn 3.97 0
IV.FREG.EHZ. 2020-10-24T06:25:16.64 3.0 negative manual Pg 3.34 0
IV.NDIM.HNZ. 2020-10-24T06:25:05.65 3.0 positive manual Pg 2.93 0
IV.RMP.HHZ. 2020-10-24T06:24:56.54 3.0 undecidable manual Sg -0.56 0
IV.FDMO.HHZ. 2020-10-24T06:24:46.40 0.6 undecidable manual S 296 0.3885 112 -0.07 49
IV.CSP1.EHZ. 2020-10-24T06:24:45.40 0.6 undecidable manual S 311 0.3471 115 0.05 49
IV.NRCA.HNE. 2020-10-24T06:24:44.83 0.6 undecidable manual S 265 0.3301 117 -0.07 50
IV.SMA1.EHZ. 2020-10-24T06:24:43.68 0.6 undecidable manual S 216 0.2869 121 -0.1 50
IV.MC2.EHE. 2020-10-24T06:24:43.73 0.6 undecidable manual S 280 0.2779 122 0.18 48
IV.TERO.HHZ. 2020-10-24T06:24:42.75 0.6 undecidable manual S 173 0.2428 126 0.05 50
IV.FDMO.HHZ. 2020-10-24T06:24:40.16 0.1 undecidable manual P 296 0.3885 112 -0.1 97
IV.CSP1.EHZ. 2020-10-24T06:24:39.80 0.1 undecidable manual P 311 0.3471 115 0.18 96
IV.NRCA.HNE. 2020-10-24T06:24:39.37 0.1 undecidable manual P 265 0.3301 117 0.01 100
IV.COR1.EHZ. 2020-10-24T06:24:38.42 3.0 negative manual P -2.61 0
IV.MC2.EHE. 2020-10-24T06:24:38.47 0.1 undecidable manual P 280 0.2779 122 -0.11 99
IV.SMA1.EHZ. 2020-10-24T06:24:38.76 0.1 positive manual P 216 0.2869 121 0.04 100
IV.TERO.HHZ. 2020-10-24T06:24:38.17 1.0 undecidable manual P 173 0.2428 126 0.08 25
IV.MF5.EHZ. 2020-10-24T06:24:36.61 1.0 negative manual P 329 0.1448 142 -0.26 24
IV.MMUR.HNZ. 2020-10-24T06:24:36.09 3.0 undecidable manual P -2.47 0
IV.GAVE.EHZ. 2020-10-24T06:24:35.53 1.0 undecidable manual S -2.22 0.61
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHE. ML:0.8 3.485751E-5 1.04 AML other m 2020-10-24T06:24:46.91
IV.MF5.EHN. ML:0.9 4.2541092E-5 42.7584 AML other m 2020-10-24T06:24:36.04
IV.TERO.HHE. ML:1 4.036434E-5 0.0768 AML other m 2020-10-24T06:24:42.80
IV.TERO.HHN. ML:0.9 3.044865E-5 0.0768 AML other m 2020-10-24T06:24:42.80
IV.TERO.HNE. ML:1.5 0.00011791355 0.6912 AML other m 2020-10-24T06:24:53.42
IV.TERO.HNN. ML:1.6 0.00016321085 1.0016 AML other m 2020-10-24T06:24:57.08
IV.COR1.EHE. ML:1.8 6.10009E-5 0.4416 AML other m 2020-10-24T06:24:59.90
IV.COR1.EHN. ML:2.1 0.0001319905 0.72 AML other m 2020-10-24T06:24:55.62
IV.COR1.HNE. ML:3.2 0.001612137 1.152 AML other m 2020-10-24T06:24:59.01
IV.COR1.HNN. ML:3.4 0.0025896485 0.9408 AML other m 2020-10-24T06:24:48.93
IV.SMA1.EHE. ML:0.6 1.6464653E-5 0.1216 AML other m 2020-10-24T06:24:43.87
IV.SMA1.EHN. ML:0.8 2.4245865E-5 0.08 AML other m 2020-10-24T06:24:43.97
IV.CSP1.EHE. ML:1.1 3.9569165E-5 0.2016 AML other m 2020-10-24T06:24:46.11
IV.CSP1.EHN. ML:1.1 3.524967E-5 0.1408 AML other m 2020-10-24T06:24:45.53
IV.FDMO.HHE. ML:0.6 1.15782965E-5 0.2016 AML other m 2020-10-24T06:24:46.39
IV.FDMO.HHN. ML:0.6 1.1712696E-5 0.1216 AML other m 2020-10-24T06:24:46.56
IV.NDIM.HNE. ML:3.6 0.00051090465 0.08 AML other m 2020-10-24T06:25:11.04
IV.NDIM.HNN. ML:4.8 0.0073020085 0.9408 AML other m 2020-10-24T06:25:22.85
IV.NDIM.HHE. ML:3.7 0.00057407005 0.0608 AML other m 2020-10-24T06:25:11.11
IV.NDIM.HHN. ML:3.3 0.00025213925 0.08 AML other m 2020-10-24T06:25:11.12
IV.FREG.HNE. ML:4.1 0.00108387765 0.64 AML other m 2020-10-24T06:25:16.98
IV.FREG.HNN. ML:4.1 0.001092306 1.2576 AML other m 2020-10-24T06:26:26.76
IV.FREG.EHE. ML:2.3 1.39678635E-5 0.1632 AML other m 2020-10-24T06:25:21.40
IV.FREG.EHN. ML:3.2 0.00011437 0.24 AML other m 2020-10-24T06:26:15.24
CR.STON.BHE. ML:2 8.536668E-6 0.64 AML other m 2020-10-24T06:25:56.12
CR.STON.BHN. ML:1.7 5.263329E-6 0.6016 AML other m 2020-10-24T06:26:29.98
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