Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 19-07-2020 and time 12:57:52 (Italy) in region 1 km SE Cascia (PG)

A magnitude ML 1.5 earthquake occured in region: 1 km SE Cascia (PG), on

  • 19-07-2020 10:57:52 (UTC)
  • 19-07-2020 12:57:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7140, 13.0260 at 10 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
Cascia PG 1 3217 3217
Poggiodomo PG 7 117 3334
Monteleone di Spoleto PG 9 599 3933
Norcia PG 10 4957 8890
Vallo di Nera PG 15 364 9254
Cerreto di Spoleto PG 15 1075 10329
Cittareale RI 15 482 10811
Sant'Anatolia di Narco PG 16 564 11375
Scheggino PG 16 461 11836
Leonessa RI 18 2435 14271
Accumoli RI 18 667 14938
Preci PG 19 724 15662

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Terni (111501 inhabitants)
38 Km SE of Foligno (57155 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
56 Km W of Teramo (54892 inhabitants)
68 Km SE of Perugia (166134 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 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 1.5 2020-07-19
10:57:52		 42.7138 13.0265 10 2020-11-19
12:36:54		 Bollettino Sismico Italiano INGV 81276441
Reviewed
Rev100 		ML 1.5 2020-07-19
10:57:52		 42.7198 13.0198 10 2020-07-19
11:24:28		 Sala Sismica INGV-Roma 81157361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-19 10:57:52 ± 0.08
Latitude 42.7138 ± 0.0054
Longitude 13.0265 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 81276441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 716
Semi-minor axis of confidence ellipse (meter) 377
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 143
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
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) 0.44157
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 81276441
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-23 12:50:38

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 81157361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-19 11:24:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PF6.EHN. 2020-07-19T10:58:08.37 1.0 undecidable manual S 16 49.0176 50 -0.01 24
IV.ASSB.HHN. 2020-07-19T10:58:08.51 0.3 undecidable manual S 321 47.1195 50 0.61 61
IV.CSP1.EHE. 2020-07-19T10:58:07.38 0.3 undecidable manual S 19 44.3223 50 0.23 68
IV.MML1.HNE. 2020-07-19T10:58:06.81 3.0 undecidable manual S 354 44.5221 50 -0.4 0
IV.MOMA.HNZ. 2020-07-19T10:58:05.51 0.3 undecidable manual S 285 38.5281 50 -0.07 71
IV.CESX.HHE. 2020-07-19T10:58:04.96 0.3 undecidable manual S 252 37.7289 50 -0.42 66
IV.MMO1.EHZ. 2020-07-19T10:58:03.76 0.3 undecidable manual S 50 31.9458 50 -0.08 72
IV.ASSB.HHN. 2020-07-19T10:58:02.36 0.3 undecidable manual P 321 47.1195 50 0.89 55
IV.FEMA.HNE. 2020-07-19T10:58:02.24 0.6 undecidable manual S 4 27.6501 50 -0.44 45
IV.MC2.EHZ. 2020-07-19T10:58:02.02 0.3 undecidable manual S 31 25.5522 50 -0.12 72
IV.MML1.HNE. 2020-07-19T10:58:01.54 1.0 undecidable manual P 354 44.5221 50 0.47 22
IV.PF6.EHN. 2020-07-19T10:58:01.75 1.0 undecidable manual P 16 49.0176 50 0 24
IV.CSP1.EHE. 2020-07-19T10:58:00.86 0.1 undecidable manual P 19 44.3223 50 -0.17 92
IV.CESX.HHE. 2020-07-19T10:57:59.96 0.6 undecidable manual P 252 37.7289 50 -0.05 48
IV.CESI.HHE. 2020-07-19T10:57:59.23 0.6 undecidable manual P 343 33.744 50 -0.17 47
IV.MOMA.HNZ. 2020-07-19T10:57:59.55 0.6 undecidable manual P 285 38.5281 50 -0.58 42
IV.MMO1.EHZ. 2020-07-19T10:57:59.24 0.6 undecidable manual P 50 31.9458 50 0.12 48
IV.FEMA.HNE. 2020-07-19T10:57:58.85 0.6 undecidable manual P 4 27.6501 50 0.4 45
IV.MC2.EHZ. 2020-07-19T10:57:58.10 0.1 undecidable manual P 31 25.5522 50 -0.04 98
IV.LNSS.HHZ. 2020-07-19T10:57:58.39 0.3 undecidable manual S 175 12.3765 130 0.14 74
IV.NRCA.HNE. 2020-07-19T10:57:58.70 0.3 undecidable manual S 28 15.0738 124 -0.31 71
IV.GAVE.EHZ. 2020-07-19T10:57:57.78 0.3 undecidable manual S 258 11.0778 133 -0.13 74
IV.ARRO.EHZ. 2020-07-19T10:57:57.94 0.6 positive manual P 235 25.9518 50 -0.26 47
IV.LNSS.HHZ. 2020-07-19T10:57:56.12 0.1 undecidable manual P 175 12.3765 130 0.22 97
IV.NRCA.HNE. 2020-07-19T10:57:56.28 0.1 undecidable manual P 28 15.0738 124 -0.05 100
IV.GAVE.EHZ. 2020-07-19T10:57:55.76 0.1 undecidable manual P 258 11.0778 133 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.6 0.000475 0.18 AML other m 2020-07-19T10:57:58.02
IV.GAVE.EHE. ML:1.6 0.0004915 0.14 AML other m 2020-07-19T10:57:58.17
IV.LNSS.HHE. ML:1.4 0.0002925 0.5 AML other m 2020-07-19T10:57:58.89
IV.LNSS.HHN. ML:1.4 0.00027800000000000004 0.56 AML other m 2020-07-19T10:57:59.01
IV.GAVE.HNN. ML:1.1 0.00015997732 0.1664 AML other m 2020-07-19T10:57:58.11
IV.GAVE.HNE. ML:1.6 0.0004598329 0.1408 AML other m 2020-07-19T10:57:58.17
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