Earthquake (quarry blast) with magnitude of ML 0.9 on date 23-08-2019 and time 08:15:12 (UTC) in region 3 km E Gubbio (PG)

A magnitude ML 0.9 (quarry blast) earthquake occured in region: 3 km E Gubbio (PG), on

  • 23-08-2019 08:15:12 (UTC)
  • 23-08-2019 10:15:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3540, 12.6140 at 0 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Event type: quarry blast.

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
Gubbio PG 3 32216 32216
Scheggia e Pascelupo PG 7 1393 33609
Costacciaro PG 8 1216 34825
Sigillo PG 11 2404 37229
Cantiano PU 13 2245 39474
Fossato di Vico PG 14 2840 42314
Pietralunga PG 17 2111 44425
Gualdo Tadino PG 20 15208 59633
Serra Sant'Abbondio PU 20 1027 60660

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
45 Km N of Foligno (57155 inhabitants)
60 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
79 Km S of Rimini (147750 inhabitants)
79 Km W of Ancona (100861 inhabitants)
88 Km N of Terni (111501 inhabitants)
92 Km SE of Cesena (96758 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 2019-08-23
08:15:12
43.3545 12.6135 1 2019-11-13
14:31:07
Bollettino Sismico Italiano INGV 73382911
Reviewed
Rev100
ML 0.9 2019-08-23
08:15:12
43.3535 12.6257 4 2019-08-23
08:26:16
Sala Sismica INGV-Roma 71731821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-23 08:15:12 ± 0.05
Latitude 43.3545 ± 0.0027
Longitude 12.6135 ± 0.0049
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type quarry blast
Origin ID 73382911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 370
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18256
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 73382911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-22 00:42:14

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 71731821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-23 08:26:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-08-23T08:15:25.89 3.0 undecidable manual P -0.71 0
IV.FRON.EHZ. 2019-08-23T08:15:16.18 0.3 undecidable manual P 26 20.2686 91 -0.01 98
IV.TB01.DHZ.01 2019-08-23T08:15:15.04 0.3 undecidable manual P 282 14.6742 92 -0.04 99
IV.ATBU.EHZ. 2019-08-23T08:15:15.12 0.3 undecidable manual P 339 14.4744 92 0.09 98
IV.ATCC.EHZ. 2019-08-23T08:15:15.84 0.3 undecidable manual P 174 18.87 92 -0.09 97
IV.MURB.HHZ. 2019-08-23T08:15:14.78 0.3 undecidable manual P 215 12.4764 92 0.15 97
IV.ATSC.EHZ. 2019-08-23T08:15:14.09 0.3 undecidable manual P 37 9.6792 93 0.01 100
IV.ATFO.HHZ. 2019-08-23T08:15:12.78 0.3 undecidable manual P 292 3.6963 98 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:1.0 0.0001545 1.2 AML other m 2019-08-23T08:15:20.32
IV.ATCC.EHE. ML:0.9 0.00007475 1.08 AML other m 2019-08-23T08:15:20.77
IV.FRON.EHE. ML:0.7 0.0000429 1 AML other m 2019-08-23T08:15:22.70
IV.MURB.HHE. ML:1.0 0.0001565 1.34 AML other m 2019-08-23T08:15:22.05
IV.ATCC.EHN. ML:0.7 0.00004405000000000001 0.66 AML other m 2019-08-23T08:15:23.19
IV.FRON.EHN. ML:0.8 0.00005405 0.66 AML other m 2019-08-23T08:15:24.56
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