Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 01-08-2020 and time 15:25:09 (UTC) in region 3 km W Arquata del Tronto (AP)

A magnitude ML 2.2 earthquake occured in region: 3 km W Arquata del Tronto (AP), on

  • 01-08-2020 15:25:09 (UTC)
  • 01-08-2020 17:25:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7690, 13.2620 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
Amatrice RI 16 2657 12898
Montemonaco AP 16 604 13502
Castelsantangelo sul Nera MC 17 281 13783
Cittareale RI 19 482 14265
Valle Castellana TE 20 977 15242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 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 2.2 2020-08-01
15:25:09		 42.7688 13.2615 11 2020-11-19
12:36:57		 Bollettino Sismico Italiano INGV 81932951
Reviewed
Rev100 		ML 2.2 2020-08-01
15:25:09		 42.7667 13.2588 11 2020-08-01
15:33:04		 Sala Sismica INGV-Roma 81550731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-01 15:25:09 ± 0.08
Latitude 42.7688 ± 0.0036
Longitude 13.2615 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81932951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 200
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 54
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.09982
Epicentral distance of station farthest from the epicenter (degree) 0.87504
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 81932951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-13 06:39:03

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 81550731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-01 15:33:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-08-01T15:25:34.48 0.6 undecidable manual S 313 81.0522 50 1.07 31
IV.ATCC.EHE. 2020-08-01T15:25:30.81 0.6 undecidable manual S 313 68.376 50 0.79 36
IV.VCEL.EHN. 2020-08-01T15:25:29.43 0.6 undecidable manual S 131 62.9925 50 0.86 35
IV.ATVO.HHN. 2020-08-01T15:25:25.65 0.6 undecidable manual P 315 97.125 50 0 43
IV.GIGS.HHN. 2020-08-01T15:25:23.23 0.6 undecidable manual S 144 43.3233 50 -0.09 48
IV.MURB.HHZ. 2020-08-01T15:25:23.36 0.6 undecidable manual P 313 81.0522 50 0.18 43
IV.ARVD.HHZ. 2020-08-01T15:25:23.47 0.6 undecidable manual P 342 84.9483 50 -0.3 42
IV.CESI.HHZ. 2020-08-01T15:25:22.16 0.6 undecidable manual S 312 39.0276 50 -0.04 48
IV.ATCC.EHE. 2020-08-01T15:25:21.09 0.3 undecidable manual P 313 68.376 50 -0.13 67
IV.T0110.HHZ. 2020-08-01T15:25:21.69 0.6 undecidable manual P 145 73.1712 50 -0.27 43
IV.GUMA.HHZ. 2020-08-01T15:25:21.14 0.6 undecidable manual S 10 33.1446 50 0.53 42
IV.GAVE.EHZ. 2020-08-01T15:25:20.53 0.6 undecidable manual S 254 31.1466 50 0.46 44
IT.MTCL.HGZ. 2020-08-01T15:25:20.14 0.6 undecidable manual S 320 32.8449 50 -0.38 45
IV.VCEL.EHN. 2020-08-01T15:25:20.39 0.3 undecidable manual P 131 62.9925 50 0.01 69
IV.FDMO.HHZ. 2020-08-01T15:25:20.37 0.6 undecidable manual S 335 32.8449 50 -0.17 48
IV.CESX.HHZ. 2020-08-01T15:25:19.76 1.0 undecidable manual P 252 57.7977 50 0.17 23
IV.FIAM.HHZ. 2020-08-01T15:25:19.23 0.6 undecidable manual P 192 56.7987 50 -0.21 45
IV.CAMP.HHZ. 2020-08-01T15:25:19.14 0.3 undecidable manual S 155 28.5492 50 -0.24 71
IV.LNSS.HHZ. 2020-08-01T15:25:18.79 0.6 undecidable manual S 224 25.752 50 0.14 48
IV.FEMA.HNE. 2020-08-01T15:25:18.85 0.6 undecidable manual S 321 27.4503 50 -0.25 47
IV.OFFI.HHZ. 2020-08-01T15:25:17.20 0.3 undecidable manual P 62 39.1275 50 0.49 65
IV.T1299.HNN. 2020-08-01T15:25:16.18 0.3 undecidable manual S 174 15.0738 125 0.59 69
IV.GIGS.HHN. 2020-08-01T15:25:16.80 0.3 undecidable manual P 144 43.3233 50 -0.55 64
IV.CESI.HHZ. 2020-08-01T15:25:16.53 0.3 undecidable manual P 312 39.0276 50 -0.17 70
IV.FDMO.HHZ. 2020-08-01T15:25:15.41 0.1 undecidable manual P 335 32.8449 50 -0.34 91
IV.TERO.HHN. 2020-08-01T15:25:15.38 0.6 undecidable manual P 120 32.2455 50 -0.28 46
IV.NRCA.HNZ. 2020-08-01T15:25:15.37 0.6 undecidable manual S 301 13.9749 127 0.08 50
IV.GUMA.HHZ. 2020-08-01T15:25:15.78 0.3 undecidable manual P 10 33.1446 50 -0.01 73
IV.SMA1.EHZ. 2020-08-01T15:25:15.98 0.6 undecidable manual S 159 16.4724 123 -0.03 49
IV.GAVE.EHZ. 2020-08-01T15:25:15.35 0.3 undecidable manual P 254 31.1466 50 -0.13 71
IT.MTCL.HGZ. 2020-08-01T15:25:15.39 0.3 undecidable manual P 320 32.8449 50 -0.35 68
IV.LNSS.HHZ. 2020-08-01T15:25:14.64 0.3 undecidable manual P 224 25.752 50 -0.01 74
IV.CAMP.HHZ. 2020-08-01T15:25:14.82 0.3 undecidable manual P 155 28.5492 50 -0.26 70
IV.FEMA.HNE. 2020-08-01T15:25:14.73 0.6 undecidable manual P 321 27.4503 50 -0.19 47
IV.MTRA.EHZ. 2020-08-01T15:25:14.61 0.3 undecidable manual S 97 11.0778 134 0.08 75
IV.SMA1.EHZ. 2020-08-01T15:25:13.24 0.1 positive manual P 159 16.4724 123 0.11 100
IV.T1299.HNN. 2020-08-01T15:25:13.21 0.1 positive manual P 174 15.0738 125 0.32 96
IV.MTRA.EHZ. 2020-08-01T15:25:12.46 0.3 undecidable manual P 97 11.0778 134 0.19 75
IV.NRCA.HNZ. 2020-08-01T15:25:12.81 0.3 undecidable manual P 301 13.9749 127 0.09 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:2.0 0.00127192325 0.064 AML other m 2020-08-01T15:25:14.85
IV.MTRA.HNE. ML:2.0 0.0012395630500000002 0.064 AML other m 2020-08-01T15:25:14.84
IV.MTRA.HNN. ML:2.2 0.002041658 0.2304 AML other m 2020-08-01T15:25:15.23
IV.MTRA.EHN. ML:2.2 0.0020425495 0.2176 AML other m 2020-08-01T15:25:15.24
IV.NRCA.HNN. ML:2.6 0.0038244185 0.064 AML other m 2020-08-01T15:25:15.77
IV.NRCA.HNE. ML:2.6 0.0037191475 0.064 AML other m 2020-08-01T15:25:16.12
IV.NRCA.HHN. ML:2.6 0.004183505999999999 0.064 AML other m 2020-08-01T15:25:15.52
IV.NRCA.HHE. ML:2.6 0.004023291 0.064 AML other m 2020-08-01T15:25:16.12
IV.SMA1.EHE. ML:2.0 0.0009441262000000001 0.1024 AML other m 2020-08-01T15:25:17.11
IV.SMA1.EHN. ML:2.1 0.0011747045 0.1664 AML other m 2020-08-01T15:25:16.39
IV.LNSS.HNE. ML:2.2 0.0009473391 0.128 AML other m 2020-08-01T15:25:19.55
IV.LNSS.HHE. ML:2.3 0.0010548110500000001 0.1408 AML other m 2020-08-01T15:25:19.54
IV.LNSS.HNN. ML:2.5 0.001793224 0.192 AML other m 2020-08-01T15:25:19.11
IV.LNSS.HHN. ML:2.5 0.0019609905 0.1792 AML other m 2020-08-01T15:25:19.11
IV.GAVE.HNE. ML:2.2 0.0007090477500000001 0.1792 AML other m 2020-08-01T15:25:21.57
IV.GAVE.EHN. ML:2.2 0.0007725 1.26 AML other m 2020-08-01T15:25:21.12
IV.GAVE.EHE. ML:2.2 0.0006838722500000001 0.1792 AML other m 2020-08-01T15:25:21.66
IV.FDMO.HHN. ML:2.2 0.0006844507 0.3072 AML other m 2020-08-01T15:25:20.46
IV.FDMO.HHE. ML:1.9 0.00035005275000000004 0.1408 AML other m 2020-08-01T15:25:21.24
IV.GUMA.HNE. ML:2.2 0.00065423415 0.2816 AML other m 2020-08-01T15:25:21.72
IV.GUMA.HHE. ML:2.4 0.001085472 0.384 AML other m 2020-08-01T15:25:21.69
IV.GUMA.HHN. ML:2.5 0.0013863414999999999 0.6016 AML other m 2020-08-01T15:25:21.62
IV.CESI.HNN. ML:2.2 0.0006467447500000001 0.2304 AML other m 2020-08-01T15:25:22.81
IV.CESI.HHE. ML:2.0 0.00035839095 0.1792 AML other m 2020-08-01T15:25:22.94
IV.CESI.HHN. ML:2.3 0.00068560935 0.256 AML other m 2020-08-01T15:25:22.80
IV.CESI.HNE. ML:1.9 0.00030704785000000004 0.1792 AML other m 2020-08-01T15:25:22.94
IV.OFFI.HHE. ML:2.4 0.00086950365 0.2944 AML other m 2020-08-01T15:25:26.82
IV.OFFI.HHN. ML:2.4 0.0009511107500000001 0.3968 AML other m 2020-08-01T15:25:25.49
IV.CESX.HHN. ML:1.7 0.000098255705 0.2816 AML other m 2020-08-01T15:25:30.78
IV.CESX.HHE. ML:1.6 0.00009459192499999999 0.4736 AML other m 2020-08-01T15:25:31.67
IV.ATCC.EHN. ML:1.7 0.00009523525499999999 0.2688 AML other m 2020-08-01T15:25:32.04
IV.ATCC.EHE. ML:1.9 0.00013579315 0.1408 AML other m 2020-08-01T15:25:31.81
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
Waveforms Seismic signals in miniseed + resp format Download