Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 24-07-2020 and time 16:57:29 (UTC) in region 3 km W Arquata del Tronto (AP)

A magnitude ML 1.7 earthquake occured in region: 3 km W Arquata del Tronto (AP), on

  • 24-07-2020 16:57:29 (UTC)
  • 24-07-2020 18:57:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7700, 13.2580 at 11 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
Arquata del Tronto AP 3 1178 1178
Accumoli RI 8 667 1845
Montegallo AP 10 523 2368
Acquasanta Terme AP 12 2916 5284
Norcia PG 14 4957 10241
Montemonaco AP 16 604 10845
Amatrice RI 16 2657 13502
Castelsantangelo sul Nera MC 16 281 13783
Cittareale RI 19 482 14265

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
48 Km N of L'Aquila (69753 inhabitants)
50 Km E of Foligno (57155 inhabitants)
55 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
80 Km E of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
88 Km NW of Chieti (51815 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km S of Ancona (100861 inhabitants)
97 Km NE of Tivoli (56533 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 2020-07-24
16:57:29		 42.7698 13.2577 11 2020-11-19
12:37:01		 Bollettino Sismico Italiano INGV 82900171
Reviewed
Rev100 		ML 1.7 2020-07-24
16:57:29		 42.7648 13.2593 10 2020-07-24
17:10:32		 Sala Sismica INGV-Roma 81311211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-24 16:57:29 ± 0.05
Latitude 42.7698 ± 0.0027
Longitude 13.2577 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82900171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 364
Semi-minor axis of confidence ellipse (meter) 183
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) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 47
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 81311211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-24 17:10:32

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 82900171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-18 15:17:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2020-07-24T16:58:29.92 3.0 undecidable manual Sn 1.11 0
IV.CPGN.EHZ. 2020-07-24T16:58:06.78 3.0 undecidable manual S -3.65 0
IV.LAV9.HHZ. 2020-07-24T16:58:06.29 3.0 undecidable manual S -2.3 0
IV.RIBO.EHZ.01 2020-07-24T16:58:03.27 3.0 undecidable manual Pg 5.25 0
IV.CRTC.HHZ. 2020-07-24T16:57:50.43 3.0 undecidable manual P 0.62 0
IV.ARRO.EHZ. 2020-07-24T16:57:44.76 0.3 undecidable manual S 242 45.3213 50 0.36 67
IV.OFFI.HHZ. 2020-07-24T16:57:44.73 1.0 undecidable manual S 62 39.3273 50 1.94 10
IV.CESI.HHZ. 2020-07-24T16:57:42.70 0.6 undecidable manual S 312 38.7279 50 0.05 48
IV.CSP1.EHZ. 2020-07-24T16:57:41.76 0.6 undecidable manual S 353 35.9418 50 -0.14 47
IV.GUMA.HHZ. 2020-07-24T16:57:41.70 0.6 undecidable manual S 11 33.0447 50 0.57 43
IV.ARVD.HHZ. 2020-07-24T16:57:41.49 3.0 negative manual P -3.52 0
IV.FDMO.HHZ. 2020-07-24T16:57:40.79 0.6 undecidable manual S 335 32.6451 50 -0.22 47
IV.CESX.HHZ. 2020-07-24T16:57:40.21 0.6 undecidable manual P 252 57.5979 50 0.1 46
IV.RM33.EHZ. 2020-07-24T16:57:40.22 0.6 undecidable manual S 187 29.1486 50 0.14 48
IV.MF5.EHZ. 2020-07-24T16:57:40.62 0.6 undecidable manual S 34 29.2485 50 0.52 44
IV.GAVE.EHZ. 2020-07-24T16:57:40.74 0.3 undecidable manual S 254 30.8469 50 0.21 70
IV.TERO.HHZ. 2020-07-24T16:57:40.74 0.6 undecidable manual S 120 32.6451 50 -0.26 46
IT.MTCL.HGZ. 2020-07-24T16:57:40.72 0.6 undecidable manual S 320 32.5452 50 -0.26 46
IV.CAMP.HHZ. 2020-07-24T16:57:39.60 0.3 undecidable manual S 155 28.749 50 -0.37 68
IV.LNSS.HHZ. 2020-07-24T16:57:39.40 0.6 undecidable manual S 224 25.6521 50 0.26 47
IV.FEMA.HNE. 2020-07-24T16:57:39.46 0.6 undecidable manual S 322 27.2505 50 -0.1 48
IV.ARRO.EHZ. 2020-07-24T16:57:38.33 0.1 undecidable manual P 242 45.3213 50 0.09 94
IV.MNTT.EHZ. 2020-07-24T16:57:38.37 0.3 undecidable manual P 40 42.5241 50 0.58 63
IV.OFFI.HHZ. 2020-07-24T16:57:37.85 0.3 undecidable manual P 62 39.3273 50 0.55 64
IV.CSP1.EHZ. 2020-07-24T16:57:36.56 0.1 undecidable manual P 353 35.9418 50 -0.23 93
IV.GAVE.EHZ. 2020-07-24T16:57:36.07 0.3 undecidable manual P 254 30.8469 50 0.07 72
IV.SMA1.EHZ. 2020-07-24T16:57:36.33 0.3 undecidable manual S 158 16.6722 123 -0.4 69
IV.T1299.HNN. 2020-07-24T16:57:36.78 0.6 undecidable manual S 172 15.1737 126 0.49 45
IV.CESI.HHZ. 2020-07-24T16:57:36.99 0.1 undecidable manual P 312 38.7279 50 -0.23 92
IV.MMO1.EHZ. 2020-07-24T16:57:36.18 0.6 undecidable manual S 21 15.4734 125 -0.19 48
IV.GUMA.HHZ. 2020-07-24T16:57:36.36 0.1 undecidable manual P 11 33.0447 50 0.02 97
IV.MC2.EHZ. 2020-07-24T16:57:36.73 0.3 undecidable manual S 340 16.6722 123 0.01 75
IV.FEMA.HNE. 2020-07-24T16:57:35.28 0.1 undecidable manual P 322 27.2505 50 -0.16 96
IV.TERO.HHZ. 2020-07-24T16:57:35.89 0.1 undecidable manual P 120 32.6451 50 -0.38 90
IV.MTRA.HNZ. 2020-07-24T16:57:35.20 0.6 undecidable manual S 97 11.3775 134 -0.09 50
IT.MTCL.HGZ. 2020-07-24T16:57:35.92 0.1 undecidable manual P 320 32.5452 50 -0.34 91
IV.FDMO.HHZ. 2020-07-24T16:57:35.95 0.1 negative manual P 335 32.6451 50 -0.33 91
IV.NRCA.HNZ. 2020-07-24T16:57:35.91 0.3 undecidable manual S 301 13.6752 129 0.04 75
IV.CAMP.HHZ. 2020-07-24T16:57:35.41 0.1 undecidable manual P 155 28.749 50 -0.26 93
IV.RM33.EHZ. 2020-07-24T16:57:35.66 0.1 positive manual P 187 29.1486 50 -0.08 97
IV.LNSS.HHZ. 2020-07-24T16:57:35.21 0.1 positive manual P 224 25.6521 50 0.02 99
IV.MF5.EHZ. 2020-07-24T16:57:35.84 0.1 positive manual P 34 29.2485 50 0.09 97
IV.MMO1.EHZ. 2020-07-24T16:57:33.51 0.1 positive manual P 21 15.4734 125 -0.08 99
IV.MC2.EHZ. 2020-07-24T16:57:33.83 0.1 negative manual P 340 16.6722 123 0.03 100
IV.MTRA.HNZ. 2020-07-24T16:57:33.04 0.1 undecidable manual P 97 11.3775 134 0.07 100
IV.SMA1.EHZ. 2020-07-24T16:57:33.88 0.1 undecidable manual P 158 16.6722 123 0.08 99
IV.T1299.HNN. 2020-07-24T16:57:33.79 0.1 undecidable manual P 172 15.1737 126 0.24 96
IV.NRCA.HNZ. 2020-07-24T16:57:33.40 0.1 positive manual P 301 13.6752 129 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:1.8 0.0007199999999999999 0.26 AML other m 2020-07-24T16:57:35.36
IV.MTRA.EHE. ML:1.8 0.0007315 0.26 AML other m 2020-07-24T16:57:35.36
IV.MTRA.HNN. ML:1.6 0.000458 0.16 AML other m 2020-07-24T16:57:35.28
IV.MTRA.EHN. ML:1.6 0.000461 0.42 AML other m 2020-07-24T16:57:35.28
IV.NRCA.HHN. ML:2.1 0.001375 1.84 AML other m 2020-07-24T16:57:35.96
IV.NRCA.HNE. ML:2.2 0.0015300000000000001 1.84 AML other m 2020-07-24T16:57:36.95
IV.NRCA.HNN. ML:2.1 0.001159 0.14 AML other m 2020-07-24T16:57:36.11
IV.NRCA.HHE. ML:2.2 0.001625 0.86 AML other m 2020-07-24T16:57:36.95
IV.LNSS.HHN. ML:1.4 0.0001545 0.52 AML other m 2020-07-24T16:57:39.88
IV.CAMP.HHE. ML:1.5 0.00016599999999999997 1.6 AML other m 2020-07-24T16:57:39.95
IV.LNSS.HHE. ML:1.6 0.00021 0.12 AML other m 2020-07-24T16:57:40.38
IV.RM33.EHN. ML:1.6 0.000194 0.14 AML other m 2020-07-24T16:57:40.63
IV.CAMP.HHN. ML:1.4 0.000133 0.74 AML other m 2020-07-24T16:57:40.45
IV.RM33.EHE. ML:1.8 0.000314 1.88 AML other m 2020-07-24T16:57:40.03
IV.FDMO.HHN. ML:1.8 0.0002675 0.2 AML other m 2020-07-24T16:57:41.04
IV.TERO.HHN. ML:1.5 0.000125 0.14 AML other m 2020-07-24T16:57:41.28
IV.GAVE.EHN. ML:1.9 0.00035450000000000005 0.26 AML other m 2020-07-24T16:57:41.53
IV.FDMO.HHE. ML:1.5 0.000152 1.42 AML other m 2020-07-24T16:57:41.18
IV.GUMA.HHN. ML:2.2 0.000769 0.64 AML other m 2020-07-24T16:57:42.01
IV.GAVE.EHE. ML:1.9 0.0004035 0.86 AML other m 2020-07-24T16:57:42.49
IV.CSP1.EHN. ML:1.7 0.0001995 1.54 AML other m 2020-07-24T16:57:42.89
IV.CSP1.EHE. ML:1.6 0.00017649999999999998 1.42 AML other m 2020-07-24T16:57:42.21
IV.TERO.HHE. ML:1.5 0.000141 0.98 AML other m 2020-07-24T16:57:42.91
IV.CESI.HHN. ML:1.5 0.0001145 0.34 AML other m 2020-07-24T16:57:43.20
IV.CESI.HHE. ML:1.3 0.00006505 0.9 AML other m 2020-07-24T16:57:43.69
IV.GUMA.HHE. ML:2.2 0.0006554999999999999 1.7 AML other m 2020-07-24T16:57:43.12
IV.ARRO.EHE. ML:1.4 0.0000809 0.18 AML other m 2020-07-24T16:57:45.56
IV.OFFI.HHN. ML:2.2 0.0005005 0.62 AML other m 2020-07-24T16:57:45.25
IV.ARRO.EHN. ML:1.4 0.00007264999999999999 0.18 AML other m 2020-07-24T16:57:45.60
IV.OFFI.HHE. ML:2.0 0.000375 1.18 AML other m 2020-07-24T16:57:47.22
IV.CESX.HHN. ML:1.4 0.000056899999999999994 1.26 AML other m 2020-07-24T16:57:51.18
IV.CESX.HHE. ML:1.4 0.0000502 1.5 AML other m 2020-07-24T16:57:52.82
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