Earthquake (quarry blast) with magnitude of ML 0.9 on date 27-04-2017 and time 17:21:45 (Italy) in region 5 km W Treia (MC)

A magnitude ML 0.9 (quarry blast) earthquake occured in region: 5 km W Treia (MC), on

  • 27-04-2017 15:21:45 (UTC)
  • 27-04-2017 17:21:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3140, 13.2510 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
Treia MC 5 9403 9403
Cingoli MC 7 10352 19755
Pollenza MC 9 6618 26373
Appignano MC 10 4213 30586
San Severino Marche MC 11 12726 43312
Tolentino MC 12 20069 63381
Apiro MC 13 2280 65661
Staffolo AN 14 2253 67914
Poggio San Vicino MC 15 246 68160
Serrapetrona MC 16 966 69126
Filottrano AN 16 9499 78625
Montecassiano MC 16 7125 85750
Macerata MC 17 42473 128223
Urbisaglia MC 17 2628 130851
Belforte del Chienti MC 17 1886 132737
Gagliole MC 17 620 133357
San Paolo di Jesi AN 17 933 134290
Cupramontana AN 18 4756 139046
Colmurano MC 19 1263 140309
Montefano MC 19 3541 143850
Castelraimondo MC 19 4587 148437
Caldarola MC 20 1823 150260

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km SW of Ancona (100861 inhabitants)
60 Km NE of Foligno (57155 inhabitants)
62 Km SE of Fano (60888 inhabitants)
72 Km SE of Pesaro (94582 inhabitants)
74 Km E of Perugia (166134 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
97 Km NE of Terni (111501 inhabitants)
100 Km SE of Rimini (147750 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 2017-04-27
15:21:45
43.3138 13.2507 1 2018-01-10
09:56:13
Bollettino Sismico Italiano INGV 50018861
Reviewed
Rev100
ML 1.0 2017-04-27
15:21:44
43.3423 13.2712 6 2017-04-27
15:33:53
Sala Sismica INGV-Roma 44482001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-27 15:21:45 ± 0.15
Latitude 43.3138 ± 0.0072
Longitude 13.2507 ± 0.0136
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 50018861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1120
Semi-minor axis of confidence ellipse (meter) 810
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.07374
Epicentral distance of station farthest from the epicenter (degree) 0.47574
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 3
Type of magnitude ML
Reference to an origin 44482001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-27 15:33:53

ML:0.9

Field Value
Value 0.9
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 50018861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-09-17 09:29:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1241.EHZ. 2017-04-27T15:21:55.52 0.3 undecidable manual P 164 52.8027 91 -0.32 66
IV.MMO1.EHZ. 2017-04-27T15:21:54.24 0.6 undecidable manual P 172 46.4202 91 -0.31 44
IV.CESI.HHE. 2017-04-27T15:21:53.78 0.3 undecidable manual P 219 44.2224 91 -0.34 66
IV.AOI.HHE. 2017-04-27T15:21:53.02 0.3 undecidable manual P 47 38.5281 91 0.03 72
IV.FDMO.HHZ. 2017-04-27T15:21:51.98 0.1 undecidable manual P 203 33.4443 91 0.01 97
IV.GUMA.HNN. 2017-04-27T15:21:51.64 0.3 undecidable manual P 166 28.6491 91 0.64 63
IV.ARVD.HHZ. 2017-04-27T15:21:51.23 0.3 undecidable manual P 309 32.2455 91 -0.49 66
IV.SNTG.HHZ. 2017-04-27T15:21:50.53 0.1 undecidable manual P 256 25.8519 91 0.09 96
IV.EL6.EHZ. 2017-04-27T15:21:48.14 0.3 undecidable manual P 278 12.1767 92 0.45 69
IV.CING.HHZ. 2017-04-27T15:21:46.96 0.1 positive manual P 327 8.1807 93 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHN. ML:1.0 0.00013380603499999998 0.2432 AML other m 2017-04-27T15:21:52.12
IV.SNTG.HHN. ML:0.9 0.00005190381 0.1664 AML other m 2017-04-27T15:21:55.56
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