Earthquake with magnitude of ML 0.7 on date 17-09-2021 and time 20:09:50 (Italy) in region 4 km SW Serrapetrona (MC)

A magnitude ML 0.7 earthquake occured in region: 4 km SW Serrapetrona (MC), on

  • 17-09-2021 18:09:50 (UTC)
  • 17-09-2021 20:09:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1470, 13.1770 at 14 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Serrapetrona MC 4 966 966
Caldarola MC 4 1823 2789
Belforte del Chienti MC 5 1886 4675
Camporotondo di Fiastrone MC 7 563 5238
Cessapalombo MC 8 512 5750
Camerino MC 9 6974 12724
San Severino Marche MC 9 12726 25450
Tolentino MC 11 20069 45519
Castelraimondo MC 12 4587 50106
Pievebovigliana MC 12 866 50972
San Ginesio MC 12 3498 54470
Fiastra MC 12 559 55029
Muccia MC 13 915 55944
Acquacanina MC 13 121 56065
Gagliole MC 14 620 56685
Fiordimonte MC 14 202 56887
Colmurano MC 15 1263 58150
Pieve Torina MC 15 1458 59608
Ripe San Ginesio MC 16 852 60460
Gualdo MC 16 815 61275
Pioraco MC 16 1134 62409
Sarnano MC 16 3264 65673
Urbisaglia MC 17 2628 68301
Bolognola MC 17 142 68443
Matelica MC 18 9981 78424
Sefro MC 18 422 78846
Sant'Angelo in Pontano MC 19 1436 80282
Pollenza MC 19 6618 86900
Loro Piceno MC 20 2401 89301

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
59 Km SW of Ancona (100861 inhabitants)
64 Km E of Perugia (166134 inhabitants)
69 Km NW of Teramo (54892 inhabitants)
78 Km NE of Terni (111501 inhabitants)
79 Km S of Fano (60888 inhabitants)
88 Km S of Pesaro (94582 inhabitants)
90 Km N of L'Aquila (69753 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 2021-09-17
18:09:50
43.1473 13.1772 14 2021-09-17
18:20:06
Sala Sismica INGV-Roma 95552721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-17 18:09:50 ± 0.08
Latitude 43.1473 ± 0.0027
Longitude 13.1772 ± 0.0111
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95552721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 881
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 177
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23562
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 95552721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-17 18:20:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.APEC.HHZ. 2021-09-17T18:10:06.27 3.0 undecidable manual S -0.02 0
IV.MC2.EHZ. 2021-09-17T18:10:00.44 0.6 undecidable manual S 178 26.1516 102 0.24 47
IV.MML1.EHE. 2021-09-17T18:09:58.00 0.6 undecidable manual S 257 17.0718 115 0.12 49
IV.EL6.EHZ. 2021-09-17T18:09:58.86 0.3 undecidable manual S 343 21.0678 108 -0.03 75
IV.MNTT.EHZ. 2021-09-17T18:09:57.69 3.0 negative manual P -0.22 0
IV.FDMO.HHZ. 2021-09-17T18:09:57.13 0.6 undecidable manual S 211 14.2746 122 -0.1 50
IV.PP3.EHZ. 2021-09-17T18:09:57.49 3.0 positive manual P 0.2 0
IV.MC2.EHZ. 2021-09-17T18:09:56.08 0.1 undecidable manual P 178 26.1516 102 -0.09 98
IV.EL6.EHZ. 2021-09-17T18:09:55.48 0.1 undecidable manual P 343 21.0678 108 0.07 99
IV.CSP1.EHZ. 2021-09-17T18:09:55.77 0.6 undecidable manual S 160 6.5934 149 0 51
IV.FDMO.HHZ. 2021-09-17T18:09:54.39 0.6 negative manual P 211 14.2746 122 -0.07 50
IV.MML1.EHE. 2021-09-17T18:09:54.75 0.1 undecidable manual P 257 17.0718 115 -0.08 100
IV.CSP1.EHZ. 2021-09-17T18:09:53.73 0.6 undecidable manual P 160 6.5934 149 0.12 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.8 0.000059550000000000004 0.12 AML other m 2021-09-17T18:09:57.27
IV.FDMO.HHN. ML:0.6 0.00002855 0.9 AML other m 2021-09-17T18:09:58.56
IV.CSP1.EHE. ML:0.7 0.00005898598 0.1664 AML other m 2021-09-17T18:09:56.28
IV.CSP1.EHN. ML:0.7 0.00005859852 0.2176 AML other m 2021-09-17T18:09:55.76
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