Earthquake with magnitude of ML 0.9 on date 19-08-2020 and time 13:58:52 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km E Norcia (PG), on

  • 19-08-2020 11:58:52 (UTC)
  • 19-08-2020 13:58:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7880, 13.1570 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Norcia PG 5 4957 4957
Arquata del Tronto AP 12 1178 6135
Castelsantangelo sul Nera MC 12 281 6416
Accumoli RI 13 667 7083
Preci PG 14 724 7807
Cascia PG 14 3217 11024
Montegallo AP 16 523 11547
Visso MC 17 1107 12654
Ussita MC 18 444 13098
Montemonaco AP 19 604 13702
Cittareale RI 19 482 14184
Poggiodomo PG 20 117 14301
Cerreto di Spoleto PG 20 1075 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
94 Km W of Pescara (121014 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 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 0.9 2020-08-19
11:58:52
42.7883 13.1568 11 2020-11-19
12:37:00
Bollettino Sismico Italiano INGV 82735591
Reviewed
Rev100
ML 0.9 2020-08-19
11:58:52
42.7903 13.1562 10 2020-08-19
12:04:33
Sala Sismica INGV-Roma 82145241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-19 11:58:52 ± 0.05
Latitude 42.7883 ± 0.0027
Longitude 13.1568 ± 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 82735591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 419
Semi-minor axis of confidence ellipse (meter) 289
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 66
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 82735591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-08 12:50:44

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 82145241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-19 12:04:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2020-08-19T11:59:04.03 0.6 undecidable manual S 7 33.8439 50 -0.16 49
IV.CESI.HHE. 2020-08-19T11:59:03.76 0.6 undecidable manual S 320 31.5462 50 0.19 49
IV.RM33.EHN. 2020-08-19T11:59:03.57 0.3 undecidable manual S 171 31.3464 50 0.05 75
IV.FDMO.HHN. 2020-08-19T11:59:02.78 0.6 undecidable manual S 348 28.0497 50 0.14 50
IV.LNSS.HNE. 2020-08-19T11:59:01.32 0.3 undecidable manual S 205 22.6551 50 0.12 76
IV.GAVE.EHN. 2020-08-19T11:59:01.15 0.3 undecidable manual S 244 23.9538 50 -0.38 71
IV.SMA1.EHZ. 2020-08-19T11:59:01.04 0.3 undecidable manual S 140 22.755 50 -0.19 75
IT.MTCL.HGZ. 2020-08-19T11:59:01.85 0.3 undecidable manual S 331 26.1516 50 -0.27 73
IV.MTRA.EHZ. 2020-08-19T11:59:00.18 0.3 undecidable manual S 100 19.869 118 -0.21 75
IV.MMO1.EHZ. 2020-08-19T11:59:00.00 0.3 undecidable manual S 48 18.4704 120 0.01 78
IV.CSP1.EHZ. 2020-08-19T11:58:59.12 0.3 undecidable manual P 7 33.8439 50 -0.16 73
IV.CESI.HHE. 2020-08-19T11:58:59.19 0.6 undecidable manual P 320 31.5462 50 0.26 48
IV.RM33.EHN. 2020-08-19T11:58:59.25 0.3 undecidable manual P 171 31.3464 50 0.35 71
IV.FDMO.HHN. 2020-08-19T11:58:58.22 0.3 undecidable manual P 348 28.0497 50 -0.17 74
IT.MTCL.HGZ. 2020-08-19T11:58:58.21 0.6 undecidable manual P 331 26.1516 50 0.12 50
IV.MC2.EHZ. 2020-08-19T11:58:58.99 0.3 undecidable manual S 11 13.875 127 0.34 73
IV.GAVE.EHN. 2020-08-19T11:58:57.68 0.6 undecidable manual P 244 23.9538 50 -0.07 51
IV.SMA1.EHZ. 2020-08-19T11:58:57.72 0.6 undecidable manual P 140 22.755 50 0.14 50
IV.LNSS.HNE. 2020-08-19T11:58:57.73 0.1 undecidable manual P 205 22.6551 50 0.17 100
IV.MC2.EHZ. 2020-08-19T11:58:56.32 0.1 undecidable manual P 11 13.875 127 0.23 100
IV.MMO1.EHZ. 2020-08-19T11:58:56.90 0.3 undecidable manual P 48 18.4704 120 0.04 77
IV.NRCA.HHE. 2020-08-19T11:58:56.42 0.3 undecidable manual S 325 6.0939 150 -0.41 73
IV.MTRA.EHZ. 2020-08-19T11:58:56.87 0.3 undecidable manual P 100 19.869 118 -0.22 74
IV.NRCA.HHE. 2020-08-19T11:58:55.15 0.3 undecidable manual P 325 6.0939 150 0.11 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.0 0.00008130000000000001 0.22 AML other m 2020-08-19T11:59:00.83
IV.MTRA.EHN. ML:0.9 0.00006145 0.2 AML other m 2020-08-19T11:59:00.93
IV.MTRA.HNE. ML:1.1 0.000093843815 0.3328 AML other m 2020-08-19T11:59:01.92
IV.CSP1.EHE. ML:0.7 0.00001864536 0.224 AML other m 2020-08-19T11:59:05.22
IV.CSP1.EHN. ML:0.7 0.000018527289999999997 0.32 AML other m 2020-08-19T11:59:05.94
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