Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 21-10-2019 and time 03:23:52 (Italy) in region 4 km NW Preci (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km NW Preci (PG), on

  • 21-10-2019 01:23:52 (UTC)
  • 21-10-2019 03:23:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8980, 12.9980 at 11 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
Preci PG 4 724 724
Sellano PG 6 1079 1803
Visso MC 8 1107 2910
Monte Cavallo MC 11 145 3055
Cerreto di Spoleto PG 11 1075 4130
Castelsantangelo sul Nera MC 13 281 4411
Ussita MC 13 444 4855
Norcia PG 14 4957 9812
Pieve Torina MC 17 1458 11270
Fiordimonte MC 17 202 11472
Vallo di Nera PG 18 364 11836
Pievebovigliana MC 20 866 12702
Serravalle di Chienti MC 20 1070 13772
Campello sul Clitunno PG 20 2442 16214
Cascia PG 20 3217 19431

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
91 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
Reviewed
Rev100 		ML 0.7 2019-10-21
01:23:52		 42.8983 12.9977 11 2019-10-21
01:30:28		 Sala Sismica INGV-Roma 73365821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 01:23:52 ± 0.07
Latitude 42.8983 ± 0.0036
Longitude 12.9977 ± 0.0061
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 73365821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 300
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 26
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73365821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 01:30:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.HNZ. 2019-10-21T01:24:15.20 3.0 undecidable manual Sg -0.24 0
IV.SMA1.EHE. 2019-10-21T01:24:05.68 0.6 undecidable manual S 137 40.5261 90 -0.1 46
IV.SNTG.HHZ. 2019-10-21T01:24:05.89 0.6 undecidable manual S 353 39.8268 90 0.28 45
IV.ASSB.HHZ. 2019-10-21T01:24:03.66 0.6 undecidable manual S 300 31.8459 90 0.19 47
IV.LNSS.HHN. 2019-10-21T01:24:03.60 0.6 undecidable manual S 174 32.9448 90 -0.17 46
IV.CSP1.EHZ. 2019-10-21T01:24:02.44 0.6 undecidable manual S 38 27.2505 90 0.19 47
IV.PF6.EHZ. 2019-10-21T01:24:02.75 0.6 undecidable manual S 31 31.0467 90 -0.5 43
IV.MMO1.EHZ. 2019-10-21T01:24:02.11 0.6 undecidable manual S 90 26.751 90 0 49
IV.MML1.HNE. 2019-10-21T01:24:01.54 0.6 undecidable manual S 355 23.9538 90 0.17 48
IV.SNTG.HHZ. 2019-10-21T01:24:00.13 0.1 undecidable manual P 353 39.8268 90 0.06 95
IV.SMA1.EHE. 2019-10-21T01:24:00.79 0.1 undecidable manual P 137 40.5261 90 0.62 83
IV.FDMO.HHZ. 2019-10-21T01:23:59.51 0.6 undecidable manual S 25 16.9719 90 0.01 50
IV.MC2.EHE. 2019-10-21T01:23:59.18 0.6 undecidable manual S 85 15.5733 90 0.04 49
IV.CSP1.EHZ. 2019-10-21T01:23:58.17 0.1 undecidable manual P 38 27.2505 90 0.03 97
IV.PF6.EHZ. 2019-10-21T01:23:58.40 0.1 undecidable manual P 31 31.0467 90 -0.31 91
IV.CESI.HHZ. 2019-10-21T01:23:58.98 0.6 undecidable manual S 327 14.0748 91 0.26 47
IV.MMO1.EHZ. 2019-10-21T01:23:58.20 0.1 undecidable manual P 90 26.751 90 0.14 95
IV.ASSB.HHZ. 2019-10-21T01:23:58.39 0.1 undecidable manual P 300 31.8459 90 -0.45 88
IV.LNSS.HHN. 2019-10-21T01:23:58.86 0.1 undecidable manual P 174 32.9448 90 -0.15 93
IV.NRCA.HHZ. 2019-10-21T01:23:58.00 0.6 undecidable manual S 127 11.877 108 -0.16 49
IV.MML1.HNE. 2019-10-21T01:23:57.54 0.1 undecidable manual P 355 23.9538 90 -0.09 96
IT.MTCL.HGN. 2019-10-21T01:23:57.49 0.6 undecidable manual S 1 10.5783 116 -0.35 47
IV.MC2.EHE. 2019-10-21T01:23:56.31 0.1 undecidable manual P 85 15.5733 90 -0.03 99
IV.CESI.HHZ. 2019-10-21T01:23:56.30 0.1 undecidable manual P 327 14.0748 91 0.2 96
IV.FDMO.HHZ. 2019-10-21T01:23:56.58 0.1 undecidable manual P 25 16.9719 90 0.03 99
IV.NRCA.HHZ. 2019-10-21T01:23:55.77 0.1 undecidable manual P 127 11.877 108 0 100
IT.MTCL.HGN. 2019-10-21T01:23:55.64 0.1 undecidable manual P 1 10.5783 116 0.05 99
IV.RM33.HNZ. 2019-10-21T01:23:53.21 3.0 undecidable manual Pn -1.21 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.9 0.00008104999999999999 1.9 AML other m 2019-10-21T01:23:57.96
IV.CESI.HHE. ML:0.5 0.00003225 1.52 AML other m 2019-10-21T01:23:58.98
IV.NRCA.HHE. ML:0.8 0.00007005 1.02 AML other m 2019-10-21T01:23:58.21
IV.CESI.HHN. ML:0.6 0.00003895 0.2 AML other m 2019-10-21T01:23:59.11
IV.FDMO.HHE. ML:0.8 0.0000504 0.38 AML other m 2019-10-21T01:23:59.60
IV.FDMO.HHN. ML:0.6 0.000029899999999999995 0.84 AML other m 2019-10-21T01:24:00.83
IV.CSP1.EHE. ML:0.7 0.000024351585 2.34 AML other m 2019-10-21T01:24:03.62
IV.CSP1.EHN. ML:0.4 0.000015426425 0.56 AML other m 2019-10-21T01:24:03.05
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