Earthquake with magnitude of ML 1.3 on date 12-08-2020 and time 06:48:03 (UTC) in region 4 km W Arquata del Tronto (AP)

A magnitude ML 1.3 earthquake occured in region: 4 km W Arquata del Tronto (AP), on

  • 12-08-2020 06:48:03 (UTC)
  • 12-08-2020 08:48:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.25 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.

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 4 1178 1178
Montegallo AP 9 523 1701
Accumoli RI 10 667 2368
Acquasanta Terme AP 13 2916 5284
Norcia PG 13 4957 10241
Montemonaco AP 14 604 10845
Castelsantangelo sul Nera MC 15 281 11126
Amatrice RI 18 2657 13783
Montefortino FM 19 1178 14961
Ussita MC 20 444 15405
Roccafluvione AP 20 2010 17415

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
49 Km E of Foligno (57155 inhabitants)
50 Km N of L'Aquila (69753 inhabitants)
56 Km E of Terni (111501 inhabitants)
79 Km E of Perugia (166134 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
86 Km W of Pescara (121014 inhabitants)
89 Km NW of Chieti (51815 inhabitants)
95 Km S of Ancona (100861 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km NE of Tivoli (56533 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 2020-08-12
06:48:03
42.79 13.25 11 2020-08-12
06:58:49
Sala Sismica INGV-Roma 81899361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-12 06:48:03 ± 0.05
Latitude 42.79 ± 0.00
Longitude 13.25 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81899361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 383
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 79
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 49
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.62233
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 81899361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-12 06:58:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CANO.HHZ. 2020-08-12T06:49:52.49 3.0 undecidable manual Sn 5.95 0
IV.USI.HHZ. 2020-08-12T06:49:47.48 3.0 undecidable manual Sn -1.59 0
IV.PANTE.HHZ. 2020-08-12T06:49:40.84 3.0 positive manual Pg 12.37 0
IV.PLMA.HHZ. 2020-08-12T06:49:22.07 3.0 undecidable manual Sn 3.01 0
IV.CMPR.HHZ. 2020-08-12T06:49:21.12 3.0 undecidable manual Sn -1 0
GU.GSCL.HHZ. 2020-08-12T06:49:18.23 3.0 undecidable manual Sg 5.65 0
GU.CANO.HHZ. 2020-08-12T06:49:17.32 3.0 positive manual Pg 17.17 0
IV.PARC.HHZ. 2020-08-12T06:48:38.11 3.0 undecidable manual S -2.06 0
IV.VBKN.HHZ. 2020-08-12T06:48:37.02 3.0 negative manual Pn 1.28 0
IV.TOLF.HHZ. 2020-08-12T06:48:36.74 3.0 undecidable manual S -0.74 0
IV.COR1.EHZ. 2020-08-12T06:48:30.03 3.0 undecidable manual S -4.03 0
IV.EL6.EHZ. 2020-08-12T06:48:22.94 3.0 undecidable manual S 348 0.5531 50 0.89 0
IV.FOSV.EHZ. 2020-08-12T06:48:15.23 0.1 undecidable manual P 325 0.6223 50 0.03 90
IV.CESI.HNE. 2020-08-12T06:48:15.69 0.6 undecidable manual S 311 0.3363 50 0.08 47
IV.RM33.EHZ. 2020-08-12T06:48:14.02 0.3 undecidable manual S 186 0.2797 50 0.09 72
IV.GAVE.EHE. 2020-08-12T06:48:14.20 0.6 undecidable manual S 250 0.2806 50 0.23 46
IV.CSP1.EHZ. 2020-08-12T06:48:14.58 0.6 undecidable manual S 353 0.3067 50 -0.16 47
IV.TERO.HHZ. 2020-08-12T06:48:14.50 0.6 undecidable manual S 122 0.3049 50 -0.19 47
IV.GUMA.HNE. 2020-08-12T06:48:14.57 0.3 undecidable manual S 12 0.2815 50 0.57 64
IV.LNSS.HNZ. 2020-08-12T06:48:13.07 0.6 undecidable manual S 221 0.2419 50 0.25 47
IV.FDMO.HHZ. 2020-08-12T06:48:13.44 0.6 undecidable manual S 334 0.2779 50 -0.44 44
IT.MTCL.HGZ. 2020-08-12T06:48:13.50 0.6 undecidable manual S 318 0.2788 50 -0.4 45
IV.MF5.EHZ. 2020-08-12T06:48:13.70 0.6 undecidable manual S 37 0.2509 50 0.61 42
IV.EL6.EHZ. 2020-08-12T06:48:13.67 1.0 undecidable manual P 348 0.5531 50 -0.35 21
IV.FEMA.HNZ. 2020-08-12T06:48:12.32 0.6 undecidable manual S 320 0.2302 50 -0.15 48
IV.OFFI.HHZ. 2020-08-12T06:48:11.00 1.0 positive manual P 65 0.3489 50 0.47 22
IV.SMA1.EHZ. 2020-08-12T06:48:10.13 0.3 undecidable manual S 159 0.1673 119 -0.32 70
IV.T1299.HNZ. 2020-08-12T06:48:10.33 0.6 undecidable manual S 172 0.1538 121 0.32 47
IV.CESI.HNE. 2020-08-12T06:48:10.11 0.1 undecidable manual P 311 0.3363 50 -0.19 93
IT.MTCL.HGZ. 2020-08-12T06:48:09.00 0.1 undecidable manual P 318 0.2788 50 -0.32 91
IV.GUMA.HNE. 2020-08-12T06:48:09.75 0.1 undecidable manual P 12 0.2815 50 0.37 90
IV.RM33.EHZ. 2020-08-12T06:48:09.41 0.3 undecidable manual P 186 0.2797 50 0.08 72
IV.MC2.EHZ. 2020-08-12T06:48:09.62 0.6 undecidable manual S 339 0.1331 125 0.28 47
IV.GAVE.EHE. 2020-08-12T06:48:09.20 0.1 undecidable manual P 250 0.2806 50 -0.16 94
IV.CSP1.EHZ. 2020-08-12T06:48:09.51 0.1 undecidable manual P 353 0.3067 50 -0.29 91
IV.TERO.HHZ. 2020-08-12T06:48:09.55 0.6 undecidable manual P 122 0.3049 50 -0.22 46
IV.MMO1.EHZ. 2020-08-12T06:48:08.86 0.6 undecidable manual S 25 0.1241 127 -0.2 48
IV.MF5.EHZ. 2020-08-12T06:48:08.82 0.1 undecidable manual P 37 0.2509 50 -0.03 97
IV.NRCA.HHZ. 2020-08-12T06:48:08.82 0.3 undecidable manual S 294 0.1124 130 0.11 74
IV.FEMA.HNZ. 2020-08-12T06:48:08.69 0.1 undecidable manual P 320 0.2302 50 0.2 95
IV.LNSS.HNZ. 2020-08-12T06:48:08.85 0.1 undecidable manual P 221 0.2419 50 0.16 95
IV.MTRA.HNZ. 2020-08-12T06:48:08.40 0.6 undecidable manual S 106 0.1088 131 -0.2 48
IV.FDMO.HHZ. 2020-08-12T06:48:08.68 0.6 negative manual P 334 0.2779 50 -0.62 42
IV.SMA1.EHZ. 2020-08-12T06:48:07.25 0.1 undecidable manual P 159 0.1673 119 -0.08 98
IV.T1299.HNZ. 2020-08-12T06:48:07.15 0.1 undecidable manual P 172 0.1538 121 0.08 98
IV.MTRA.HNZ. 2020-08-12T06:48:06.22 0.1 undecidable manual P 106 0.1088 131 -0.03 100
IV.MMO1.EHZ. 2020-08-12T06:48:06.44 0.6 undecidable manual P 25 0.1241 127 -0.08 49
IV.NRCA.HHZ. 2020-08-12T06:48:06.45 0.1 undecidable manual P 294 0.1124 130 0.13 98
IV.MC2.EHZ. 2020-08-12T06:48:06.81 0.1 undecidable manual P 339 0.1331 125 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1 4.835E-5 1.28 AML other m 2020-08-12T06:48:14.88
IV.MTRA.HNE. ML:1.5 0.0003195 0.32 AML other m 2020-08-12T06:48:08.77
IV.MTRA.EHE. ML:1.4 0.0003065 0.12 AML other m 2020-08-12T06:48:08.71
IV.MTRA.HNN. ML:1.6 0.0004055 0.84 AML other m 2020-08-12T06:48:08.42
IV.NRCA.HHE. ML:1.8 0.0006165 1.34 AML other m 2020-08-12T06:48:08.98
IV.NRCA.HNN. ML:1.7 0.0005115 1.9 AML other m 2020-08-12T06:48:08.99
IV.NRCA.HNE. ML:1.7 0.000529 0.12 AML other m 2020-08-12T06:48:08.99
IV.NRCA.HHN. ML:1.7 0.0004955 1.92 AML other m 2020-08-12T06:48:08.99
IV.SMA1.EHN. ML:1.4 0.0002095 0.18 AML other m 2020-08-12T06:48:10.41
IV.SMA1.EHE. ML:1.3 0.000166 0.08 AML other m 2020-08-12T06:48:10.70
IV.FDMO.HHN. ML:1 4.965E-5 0.82 AML other m 2020-08-12T06:48:13.40
IV.RM33.EHN. ML:1.3 9.605E-5 0.18 AML other m 2020-08-12T06:48:14.21
IV.TERO.HHE. ML:1.1 5.09E-5 1.1 AML other m 2020-08-12T06:48:15.10
IV.RM33.EHE. ML:1.2 7.415E-5 1.06 AML other m 2020-08-12T06:48:15.23
IV.TERO.HHN. ML:1.1 5.335E-5 0.38 AML other m 2020-08-12T06:48:15.30
IV.MF5.EHE. ML:1.2 8.1990778E-5 0.6016 AML other m 2020-08-12T06:48:14.04
IV.MF5.EHN. ML:1.1 6.4256205E-5 2.0192 AML other m 2020-08-12T06:48:13.92
IV.RM33.HNE. ML:1.4 0.000127419415 0.4096 AML other m 2020-08-12T06:48:14.69
IV.RM33.HNN. ML:1.2 8.225737E-5 1.2704 AML other m 2020-08-12T06:48:16.02
IV.CSP1.EHE. ML:1.3 7.6314315E-5 2.32 AML other m 2020-08-12T06:48:14.82
IV.CSP1.EHN. ML:0.9 2.8218125E-5 0.3392 AML other m 2020-08-12T06:48:15.36
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