Istituto Nazionale di Geofisica e Vulcanologia

Earthquake (quarry blast) with magnitude of ML 1.1 on date 09-10-2020 and time 14:12:09 (UTC) in region 7 km W Treia (MC)

A magnitude ML 1.1 (quarry blast) earthquake occured in region: 7 km W Treia (MC), on

  • 09-10-2020 14:12:09 (UTC)
  • 09-10-2020 16:12:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3070, 13.2230 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 7 9403 9403
Cingoli MC 8 10352 19755
San Severino Marche MC 9 12726 32481
Pollenza MC 11 6618 39099
Appignano MC 12 4213 43312
Tolentino MC 12 20069 63381
Apiro MC 12 2280 65661
Poggio San Vicino MC 14 246 65907
Staffolo AN 14 2253 68160
Gagliole MC 15 620 68780
Serrapetrona MC 15 966 69746
Belforte del Chienti MC 16 1886 71632
San Paolo di Jesi AN 17 933 72565
Castelraimondo MC 17 4587 77152
Urbisaglia MC 17 2628 79780
Cupramontana AN 18 4756 84536
Filottrano AN 18 9499 94035
Matelica MC 18 9981 104016
Montecassiano MC 18 7125 111141
Caldarola MC 19 1823 112964
Macerata MC 19 42473 155437
Colmurano MC 19 1263 156700
Cerreto d'Esi AN 19 3817 160517
Camporotondo di Fiastrone MC 20 563 161080

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SW of Ancona (100861 inhabitants)
57 Km NE of Foligno (57155 inhabitants)
62 Km S of Fano (60888 inhabitants)
71 Km E of Perugia (166134 inhabitants)
72 Km SE of Pesaro (94582 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
95 Km NE of Terni (111501 inhabitants)
99 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 1.1 2020-10-09
14:12:09		 43.3072 13.2232 1 2021-02-26
14:56:12		 Bollettino Sismico Italiano INGV 85795851
Reviewed
Rev100 		ML 1.1 2020-10-09
14:12:09		 43.3292 13.2423 8 2020-10-09
14:21:16		 Sala Sismica INGV-Roma 83648601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-09 14:12:09 ± 0.16
Latitude 43.3072 ± 0.0090
Longitude 13.2232 ± 0.0124
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 85795851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1050
Semi-minor axis of confidence ellipse (meter) 980
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 1050.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 85795851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-28 14:52:40

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 83648601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-09 14:21:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-10-09T14:12:19.49 0.3 undecidable manual P 190 53.3022 91 -0.68 61
IV.CESI.HNN. 2020-10-09T14:12:17.85 0.3 undecidable manual P 218 42.3243 91 -0.12 72
IV.MF5.EHZ. 2020-10-09T14:12:17.87 0.3 undecidable manual P 152 40.2264 91 0.31 70
IV.AOI.HHE. 2020-10-09T14:12:16.91 0.3 undecidable manual P 48 40.7259 91 -0.75 60
IV.FDMO.HHZ. 2020-10-09T14:12:15.70 0.1 undecidable manual P 200 31.9458 91 -0.2 96
IV.MML1.EHN. 2020-10-09T14:12:15.39 0.1 undecidable manual P 223 29.5482 91 -0.03 100
IV.CSP1.EHZ. 2020-10-09T14:12:14.41 0.1 undecidable manual P 184 23.9538 91 0.12 99
IV.MMUR.HNE. 2020-10-09T14:12:14.20 0.3 undecidable manual P 309 23.5542 91 -0.02 76
IV.PF6.EHN. 2020-10-09T14:12:13.53 0.3 undecidable manual P 187 18.9699 92 0.24 73
IV.EL6.EHZ. 2020-10-09T14:12:11.86 0.1 undecidable manual P 284 10.0788 93 0.34 97
IV.TRE1.HNZ. 2020-10-09T14:12:11.47 0.3 undecidable manual P 86 7.2927 94 0.51 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EL6.EHE. ML:1.2 0.0002655 0.14 AML other m 2020-10-09T14:12:15.33
IV.EL6.EHN. ML:1.1 0.000222 1.02 AML other m 2020-10-09T14:12:15.54
IV.FDMO.HHE. ML:1.0 0.0000441 1.16 AML other m 2020-10-09T14:12:22.83
IV.FDMO.HHN. ML:0.9 0.00004175 0.9 AML other m 2020-10-09T14:12:23.30
IV.NRCA.HHN. ML:1.2 0.000033299999999999996 0.16 AML other m 2020-10-09T14:12:29.90
IV.NRCA.HHE. ML:1.1 0.0000317 0.68 AML other m 2020-10-09T14:12:30.05
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