Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 03-07-2020 and time 09:51:26 (UTC) in region 3 km W Arquata del Tronto (AP)

A magnitude ML 1.2 earthquake occured in region: 3 km W Arquata del Tronto (AP), on

  • 03-07-2020 09:51:26 (UTC)
  • 03-07-2020 11:51:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7780, 13.2580 at 10 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.

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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 9 667 1845
Montegallo AP 10 523 2368
Acquasanta Terme AP 13 2916 5284
Norcia PG 14 4957 10241
Montemonaco AP 15 604 10845
Castelsantangelo sul Nera MC 16 281 11126
Amatrice RI 17 2657 13783
Cittareale RI 19 482 14265
Montefortino FM 20 1178 15443

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
49 Km N of L'Aquila (69753 inhabitants)
49 Km E of Foligno (57155 inhabitants)
55 Km E of Terni (111501 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
80 Km E of Perugia (166134 inhabitants)
86 Km W of Pescara (121014 inhabitants)
88 Km NW of Chieti (51815 inhabitants)
96 Km S of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 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
Reviewed
Rev100 		ML 1.2 2020-07-03
09:51:26		 42.7778 13.258 10 2020-07-03
10:01:52		 Sala Sismica INGV-Roma 80726411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-03 09:51:26 ± 0.06
Latitude 42.7778 ± 0.0027
Longitude 13.2580 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80726411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10342
Epicentral distance of station farthest from the epicenter (degree) 0.56298
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 80726411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-03 10:01:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-07-03T09:51:45.92 1.0 undecidable manual S 348 62.493 50 0.52 21
IV.CESI.HHZ. 2020-07-03T09:51:38.85 0.1 undecidable manual S 311 38.2284 50 -0.07 95
IV.MF5.EHZ. 2020-07-03T09:51:37.12 0.3 undecidable manual S 35 28.4493 50 0.79 59
IV.EL6.EHZ. 2020-07-03T09:51:37.33 1.0 undecidable manual P 348 62.493 50 0.09 23
IV.CSP1.EHZ. 2020-07-03T09:51:37.78 0.3 undecidable manual S 353 35.1426 50 -0.32 68
IV.GAVE.EHZ. 2020-07-03T09:51:37.06 0.3 undecidable manual S 252 31.1466 50 0.02 73
IV.FDMO.HHZ. 2020-07-03T09:51:36.87 0.3 undecidable manual S 334 31.8459 50 -0.37 68
IV.LNSS.HHZ. 2020-07-03T09:51:36.24 0.1 undecidable manual S 223 26.2515 50 0.49 89
IV.RM33.EHZ. 2020-07-03T09:51:36.71 0.3 undecidable manual S 187 30.0477 50 -0.03 73
IV.CESI.HHZ. 2020-07-03T09:51:33.28 0.1 negative manual P 311 38.2284 50 -0.21 92
IV.GAVE.EHZ. 2020-07-03T09:51:32.22 1.0 undecidable manual P 252 31.1466 50 -0.18 24
IV.MC2.EHZ. 2020-07-03T09:51:32.84 0.1 undecidable manual S 339 15.873 123 0.23 96
IV.RM33.EHZ. 2020-07-03T09:51:32.04 0.6 undecidable manual P 187 30.0477 50 -0.19 47
IV.TERO.HHZ. 2020-07-03T09:51:32.34 0.6 positive manual P 121 33.0447 50 -0.35 45
IV.SMA1.EHZ. 2020-07-03T09:51:32.93 0.1 undecidable manual S 159 17.4714 120 -0.17 97
IV.MF5.EHZ. 2020-07-03T09:51:32.09 0.3 negative manual P 35 28.4493 50 0.09 72
IV.FDMO.HHZ. 2020-07-03T09:51:32.16 0.6 undecidable manual P 334 31.8459 50 -0.36 45
IV.CSP1.EHZ. 2020-07-03T09:51:32.67 0.6 positive manual P 353 35.1426 50 -0.34 45
IV.LNSS.HHZ. 2020-07-03T09:51:31.70 0.1 positive manual P 223 26.2515 50 0.04 98
IV.MTRA.HNZ. 2020-07-03T09:51:31.30 0.1 undecidable manual S 102 11.4774 131 -0.1 99
IV.NRCA.HNZ. 2020-07-03T09:51:31.83 0.1 undecidable manual S 298 13.2756 128 -0.04 100
IV.SMA1.EHZ. 2020-07-03T09:51:30.18 0.1 negative manual P 159 17.4714 120 0.05 99
IV.MTRA.HNZ. 2020-07-03T09:51:29.25 0.1 undecidable manual P 102 11.4774 131 0.1 99
IV.NRCA.HNZ. 2020-07-03T09:51:29.52 0.1 undecidable manual P 298 13.2756 128 0.1 99
IV.MC2.EHZ. 2020-07-03T09:51:29.96 0.6 negative manual P 339 15.873 123 0.12 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.4 0.00027949999999999996 0.72 AML other m 2020-07-03T09:51:31.74
IV.MTRA.EHN. ML:1.4 0.0002675 0.52 AML other m 2020-07-03T09:51:31.37
IV.NRCA.HHE. ML:1.5 0.00033899999999999995 0.66 AML other m 2020-07-03T09:51:32.34
IV.NRCA.HHN. ML:1.6 0.0003935 0.06 AML other m 2020-07-03T09:51:32.10
IV.TERO.HHE. ML:0.9 0.000035 0.36 AML other m 2020-07-03T09:51:32.42
IV.SMA1.EHN. ML:1.1 0.00009434999999999999 0.16 AML other m 2020-07-03T09:51:33.15
IV.SMA1.EHE. ML:1.3 0.00017649999999999998 0.16 AML other m 2020-07-03T09:51:33.30
IV.LNSS.HHN. ML:1.1 0.0000668 0.14 AML other m 2020-07-03T09:51:36.34
IV.LNSS.HHE. ML:1.1 0.00006455 0.5 AML other m 2020-07-03T09:51:36.60
IV.FDMO.HHN. ML:1.2 0.00007845000000000001 0.24 AML other m 2020-07-03T09:51:37.10
IV.RM33.EHE. ML:1.2 0.0000726 0.44 AML other m 2020-07-03T09:51:37.39
IV.RM33.EHN. ML:1.1 0.0000649 0.66 AML other m 2020-07-03T09:51:37.56
IV.GAVE.EHN. ML:1.2 0.0000698 1.76 AML other m 2020-07-03T09:51:38.96
IV.GAVE.EHE. ML:1.2 0.0000688 0.12 AML other m 2020-07-03T09:51:38.34
IV.TERO.HHN. ML:1.0 0.00004045 0.54 AML other m 2020-07-03T09:51:38.49
IV.FDMO.HHE. ML:0.9 0.000035249999999999996 0.24 AML other m 2020-07-03T09:51:38.75
IV.CESI.HHE. ML:1.0 0.00004025 0.34 AML other m 2020-07-03T09:51:39.00
IV.CESI.HHN. ML:1.1 0.0000512 0.3 AML other m 2020-07-03T09:51:39.31
IV.EL6.EHN. ML:1.5 0.00005885 1.58 AML other m 2020-07-03T09:51:49.19
IV.EL6.EHE. ML:1.6 0.000076688 0.44 AML other m 2020-07-03T09:51:49.90
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