Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 28-08-2019 and time 09:00:26 (Italy) in region 5 km S Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km S Norcia (PG), on

  • 28-08-2019 07:00:26 (UTC)
  • 28-08-2019 09:00:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7480, 13.1120 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
Norcia PG 5 4957 4957
Cascia PG 9 3217 8174
Accumoli RI 13 667 8841
Poggiodomo PG 15 117 8958
Cittareale RI 15 482 9440
Arquata del Tronto AP 16 1178 10618
Preci PG 16 724 11342
Castelsantangelo sul Nera MC 17 281 11623
Monteleone di Spoleto PG 17 599 12222
Cerreto di Spoleto PG 18 1075 13297
Amatrice RI 20 2657 15954

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Foligno (57155 inhabitants)
43 Km E of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km W of Chieti (51815 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 1.0 2019-08-28
07:00:26		 42.748 13.1115 11 2019-11-13
14:31:08		 Bollettino Sismico Italiano INGV 73708361
Reviewed
Rev100 		ML 1.2 2019-08-28
07:00:26		 42.7598 13.1188 13 2019-08-28
07:09:07		 Sala Sismica INGV-Roma 71871681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-28 07:00:26 ± 0.05
Latitude 42.7480 ± 0.0027
Longitude 13.1115 ± 0.0049
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 73708361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 386
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35074
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 73708361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-11-07 14:38:33

ML:1.2

Field Value
Value 1.2
Uncertainty 0.6
Num. used stations 22
Type of magnitude ML
Reference to an origin 71871681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-28 07:09:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2019-08-28T07:02:09.22 3.0 undecidable manual Sn 0.59 0
IV.ISPIC.EHZ. 2019-08-28T07:01:54.25 3.0 positive manual Pn -2.78 0
IV.VARE.HHZ. 2019-08-28T07:01:51.47 3.0 negative manual Pg 17.67 0
IV.MFNL.HHZ. 2019-08-28T07:01:49.65 3.0 positive manual Pg 8.54 0
IV.MDI.HHZ. 2019-08-28T07:01:29.30 3.0 positive manual Pn 2.75 0
IV.PTRJ.HNZ. 2019-08-28T07:01:20.51 3.0 undecidable manual Sn 0.35 0
SL.BOJS.BHZ. 2019-08-28T07:01:16.52 3.0 undecidable manual Pn 0.18 0
IV.VBKN.HHZ. 2019-08-28T07:01:06.09 3.0 positive manual Pg 3.5 0
IV.IMOL.HNZ. 2019-08-28T07:00:59.37 3.0 positive manual Pn 0.14 0
IV.VVLD.HHZ. 2019-08-28T07:00:59.31 3.0 undecidable manual S -1.06 0
IT.VNF1.HGZ. 2019-08-28T07:00:51.11 3.0 undecidable manual P -1.75 0
IV.CSP1.EHZ. 2019-08-28T07:00:39.86 0.6 undecidable manual S 11 38.9277 50 0.08 46
IV.CAMP.HHE. 2019-08-28T07:00:38.14 0.6 undecidable manual S 134 33.8439 50 -0.29 46
IV.FDMO.HHZ. 2019-08-28T07:00:37.76 0.6 undecidable manual S 356 32.0457 50 -0.2 48
IV.RM33.EHZ. 2019-08-28T07:00:36.62 0.6 undecidable manual S 162 27.8499 50 -0.21 47
IT.MTCL.HGZ. 2019-08-28T07:00:36.80 0.6 undecidable manual S 342 28.749 50 -0.28 47
IV.MMO1.EHZ. 2019-08-28T07:00:35.52 0.6 undecidable manual S 46 24.2535 50 -0.36 47
IV.MTRA.EHZ. 2019-08-28T07:00:35.16 0.6 undecidable manual S 88 23.2545 50 -0.45 46
IV.MF5.EHZ. 2019-08-28T07:00:34.88 0.6 undecidable manual P 47 38.8278 50 0.56 41
IV.GAVE.EHZ. 2019-08-28T07:00:34.38 0.6 undecidable manual S 251 18.7701 120 0.02 49
IV.T1299.HNN. 2019-08-28T07:00:34.26 0.6 undecidable manual S 132 18.7701 120 -0.11 49
IV.CSP1.EHZ. 2019-08-28T07:00:34.23 0.3 undecidable manual P 11 38.9277 50 -0.09 71
IV.LNSS.HHZ. 2019-08-28T07:00:33.96 0.6 undecidable manual S 200 17.0718 122 0.09 49
IV.FDMO.HHZ. 2019-08-28T07:00:33.09 0.1 undecidable manual P 356 32.0457 50 -0.18 95
IV.CAMP.HHE. 2019-08-28T07:00:33.69 0.3 undecidable manual P 134 33.8439 50 0.15 70
IT.MTCL.HGZ. 2019-08-28T07:00:32.71 0.3 undecidable manual P 342 28.749 50 -0.05 73
IV.RM33.EHZ. 2019-08-28T07:00:32.51 0.3 undecidable manual P 162 27.8499 50 -0.11 72
IV.MMO1.EHZ. 2019-08-28T07:00:32.32 0.3 undecidable manual P 46 24.2535 50 0.25 69
IV.MTRA.EHZ. 2019-08-28T07:00:31.96 0.3 undecidable manual P 88 23.2545 50 0.05 72
IV.NRCA.HNZ. 2019-08-28T07:00:31.69 0.3 undecidable manual S 1 9.4794 138 -0.14 72
IV.GAVE.EHZ. 2019-08-28T07:00:31.35 0.3 undecidable manual P 251 18.7701 120 0.16 72
IV.T1299.HNN. 2019-08-28T07:00:31.41 0.1 undecidable manual P 132 18.7701 120 0.22 95
IV.LNSS.HHZ. 2019-08-28T07:00:30.99 0.1 undecidable manual P 200 17.0718 122 0.08 99
IV.NRCA.HNZ. 2019-08-28T07:00:29.82 0.1 negative manual P 1 9.4794 138 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.00021349999999999999 0.3 AML other m 2019-08-28T07:00:32.54
IV.LNSS.HHE. ML:1.1 0.0001028 0.6 AML other m 2019-08-28T07:00:34.33
IV.LNSS.HHN. ML:1.2 0.0001245 0.56 AML other m 2019-08-28T07:00:34.63
IV.NRCA.HHN. ML:1.2 0.00020500000000000002 0.1 AML other m 2019-08-28T07:00:35.48
IV.GAVE.EHN. ML:1.1 0.00009214999999999999 0.14 AML other m 2019-08-28T07:00:35.74
IV.GAVE.EHE. ML:1.2 0.0001215 0.16 AML other m 2019-08-28T07:00:36.24
IV.RM33.EHN. ML:0.8 0.000034750000000000004 0.46 AML other m 2019-08-28T07:00:36.91
IV.FDMO.HHN. ML:0.9 0.00003495 0.2 AML other m 2019-08-28T07:00:37.96
IV.RM33.EHE. ML:0.9 0.0000382 1.4 AML other m 2019-08-28T07:00:37.93
IV.MTRA.EHN. ML:0.8 0.0000371 1.16 AML other m 2019-08-28T07:00:38.99
IV.FDMO.HHE. ML:1.0 0.0000433 0.24 AML other m 2019-08-28T07:00:38.42
IV.MTRA.EHE. ML:0.8 0.00004065 0.4 AML other m 2019-08-28T07:00:40.19
IV.TERO.HHE. ML:0.7 0.00001605 1.14 AML other m 2019-08-28T07:00:40.80
IV.TERO.HHN. ML:0.8 0.000021400000000000002 0.1 AML other m 2019-08-28T07:00:40.88
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