Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 19-09-2019 and time 20:59:58 (Italy) in region 4 km E Spello (PG)

A magnitude ML 0.8 earthquake occured in region: 4 km E Spello (PG), on

  • 19-09-2019 18:59:58 (UTC)
  • 19-09-2019 20:59:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0060, 12.7220 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
Spello PG 4 8645 8645
Foligno PG 6 57155 65800
Valtopina PG 7 1398 67198
Cannara PG 11 4305 71503
Assisi PG 11 28299 99802
Bevagna PG 12 5081 104883
Nocera Umbra PG 13 5839 110722
Montefalco PG 14 5679 116401
Trevi PG 14 8469 124870
Bastia Umbra PG 16 21874 146744
Gualdo Cattaneo PG 17 6155 152899
Bettona PG 19 4367 157266
Valfabbrica PG 20 3389 160655

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Foligno (57155 inhabitants)
29 Km E of Perugia (166134 inhabitants)
50 Km N of Terni (111501 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
85 Km SE of Arezzo (99543 inhabitants)
89 Km W of Teramo (54892 inhabitants)
91 Km NW of L'Aquila (69753 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
96 Km S of Fano (60888 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 0.8 2019-09-19
18:59:58		 43.0055 12.7218 11 2020-02-28
16:42:23		 Bollettino Sismico Italiano INGV 76320581
Reviewed
Rev100 		ML 0.6 2019-09-19
18:59:58		 43.0148 12.7227 11 2019-09-19
19:07:06		 Sala Sismica INGV-Roma 72568011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-19 18:59:58 ± 0.1
Latitude 43.0055 ± 0.0045
Longitude 12.7218 ± 0.0123
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 76320581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1070
Semi-minor axis of confidence ellipse (meter) 210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 226
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 12
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36333
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 76320581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-02-07 16:16:15

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 72568011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-19 19:07:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMDO.HHZ. 2019-09-19T19:01:36.10 3.0 undecidable manual Pg 16.99 0
IV.IMTC.HHZ. 2019-09-19T19:01:34.46 3.0 undecidable manual Sg 8.31 0
IV.HAGA.HHZ. 2019-09-19T19:01:29.36 3.0 undecidable manual Pn 3.81 0
IT.VNF1.HGZ. 2019-09-19T19:01:16.78 3.0 undecidable manual Sg 5.88 0
SL.KOGS.BHZ. 2019-09-19T19:01:09.37 3.0 undecidable manual Sn -2.6 0
IV.CMPR.HHZ. 2019-09-19T19:01:00.90 3.0 negative manual Pg 12.46 0
IV.SPS2.HHZ. 2019-09-19T19:01:00.26 3.0 positive manual Pn -5.95 0
OE.WTTA.HHZ. 2019-09-19T19:00:45.91 3.0 undecidable manual Sg 3.37 0
IV.COLB.HHZ. 2019-09-19T19:00:37.04 3.0 undecidable manual Pn 0.45 0
IV.LPEL.HHZ. 2019-09-19T19:00:35.44 3.0 undecidable manual Pg 13.2 0
TV.SF01.EHZ. 2019-09-19T19:00:27.03 3.0 undecidable manual Sg 0.92 0
IV.VAGA.HHZ. 2019-09-19T19:00:26.93 3.0 undecidable manual Pn -2.86 0
IV.ARCI.HHZ. 2019-09-19T19:00:22.37 3.0 undecidable manual Sn -2.75 0
IV.CSP1.EHZ. 2019-09-19T19:00:12.44 0.6 undecidable manual S 76 40.3263 90 0.42 58
IV.TRTR.HHZ. 2019-09-19T19:00:11.82 3.0 negative manual Pn -0.54 0
IV.FOSV.EHE. 2019-09-19T19:00:10.11 0.6 undecidable manual S 6 32.2455 90 0.24 62
IV.FAGN.HHZ. 2019-09-19T19:00:09.75 3.0 positive manual Pn -6.61 0
IV.SNTG.HHZ. 2019-09-19T19:00:09.93 0.6 undecidable manual S 33 32.8449 90 -0.1 63
IV.FDMO.HHZ. 2019-09-19T19:00:08.93 0.6 undecidable manual S 83 29.8479 90 -0.3 62
IV.ATCC.EHZ. 2019-09-19T19:00:06.94 0.6 undecidable manual S 342 20.9679 90 0.07 66
IV.CSP1.EHZ. 2019-09-19T19:00:06.40 0.3 undecidable manual P 76 40.3263 90 -0.04 95
IV.PE3.EHZ. 2019-09-19T19:00:06.25 3.0 undecidable manual S -3.88 0
IV.SNTG.HHZ. 2019-09-19T19:00:05.49 0.3 undecidable manual P 33 32.8449 90 0.2 93
IV.FOSV.EHE. 2019-09-19T19:00:04.80 0.6 undecidable manual P 6 32.2455 90 -0.4 59
IV.FDMO.HHZ. 2019-09-19T19:00:04.62 0.3 undecidable manual P 83 29.8479 90 -0.2 94
IV.ATCC.EHZ. 2019-09-19T19:00:03.48 0.3 undecidable manual P 342 20.9679 90 0.02 98
IV.ASSB.HHZ. 2019-09-19T19:00:03.11 0.3 undecidable manual S 309 6.5934 139 -0.17 97
TV.SF01.EHZ. 2019-09-19T19:00:02.01 3.0 undecidable manual Pn -0.9 0
NI.VINO.HHZ. 2019-09-19T19:00:01.37 3.0 undecidable manual Pn -2.94 0
IV.ASSB.HHZ. 2019-09-19T19:00:01.49 0.3 undecidable manual P 309 6.5934 139 0.11 100
IV.EUCT.HNZ. 2019-09-19T19:00:00.47 3.0 undecidable manual Pn -0.52 0
IV.FIR.HHZ. 2019-09-19T18:59:59.87 3.0 undecidable manual S -3.12 0
IV.PII.HHZ. 2019-09-19T18:59:55.38 3.0 undecidable manual P 1.89 0
IV.CAVE.HHZ. 2019-09-19T18:59:49.41 3.0 undecidable manual S 0 0
IV.BRSN.EHZ. 2019-09-19T18:59:42.90 3.0 undecidable manual P -2.17 0
IV.NDIM.HHZ. 2019-09-19T18:59:42.50 3.0 positive manual P -0.84 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:1.4 0.000314 0.18 AML other m 2019-09-19T19:00:03.38
IV.ASSB.HHN. ML:1.2 0.0002575 0.4 AML other m 2019-09-19T19:00:03.42
IV.FDMO.HHE. ML:0.6 0.000021850000000000003 0.5 AML other m 2019-09-19T19:00:06.93
IV.ATCC.EHE. ML:0.7 0.000036556405 0.128 AML other m 2019-09-19T19:00:07.28
IV.ATCC.EHN. ML:0.6 0.000028758995000000003 0.128 AML other m 2019-09-19T19:00:07.31
IV.FDMO.HHN. ML:0.8 0.0000309 1.54 AML other m 2019-09-19T19:00:09.82
IV.SNTG.HHN. ML:1.0 0.000040488669999999995 0.1632 AML other m 2019-09-19T19:00:11.63
IV.SNTG.HHE. ML:0.4 0.000009375753 0.3712 AML other m 2019-09-19T19:00:15.58
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