Earthquake with magnitude of ML 0.7 on date 10-10-2021 and time 07:25:32 (Italy) in region 4 km SE Ussita (MC)

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

  • 10-10-2021 05:25:32 (UTC)
  • 10-10-2021 07:25:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9260, 13.1820 at 12 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Ussita MC 4 444 444
Castelsantangelo sul Nera MC 4 281 725
Visso MC 8 1107 1832
Bolognola MC 9 142 1974
Acquacanina MC 12 121 2095
Montemonaco AP 12 604 2699
Fiastra MC 12 559 3258
Preci PG 13 724 3982
Montefortino FM 13 1178 5160
Fiordimonte MC 15 202 5362
Amandola FM 16 3629 8991
Montegallo AP 16 523 9514
Sarnano MC 16 3264 12778
Norcia PG 16 4957 17735
Monte Cavallo MC 17 145 17880
Pieve Torina MC 17 1458 19338
Pievebovigliana MC 17 866 20204
Comunanza AP 19 3166 23370
Arquata del Tronto AP 19 1178 24548

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 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 0.7 2021-10-10
05:25:32
42.9263 13.1817 12 2022-03-30
13:04:10
Bollettino Sismico Italiano INGV 96446331
Reviewed
Rev100
ML 1.0 2021-10-10
05:25:32
42.9287 13.1772 11 2021-10-10
06:19:04
Sala Sismica INGV-Roma 96400901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-10 05:25:32 ± 0.1
Latitude 42.9263 ± 0.0045
Longitude 13.1817 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96446331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 454
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.01619
Epicentral distance of station farthest from the epicenter (degree) 0.24192
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 96446331
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-11 20:16:19

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 96400901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-10 06:19:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.HNE. 2021-10-10T05:25:41.91 0.3 undecidable manual S 321 26.8509 94 0.16 72
IV.CESI.HHZ. 2021-10-10T05:25:41.12 0.3 undecidable manual S 291 24.1536 95 0.1 73
IV.CSP1.EHZ. 2021-10-10T05:25:39.56 0.3 undecidable manual S 6 18.4704 100 0.04 75
IT.MTCL.HGZ. 2021-10-10T05:25:38.81 0.3 undecidable manual S 297 16.5723 104 -0.22 72
IV.FDMO.HHZ. 2021-10-10T05:25:38.13 0.3 undecidable manual S 328 14.3745 110 -0.35 70
IV.NRCA.HHZ. 2021-10-10T05:25:37.48 0.3 undecidable manual S 208 11.6772 120 -0.34 71
IV.MML1.HNE. 2021-10-10T05:25:37.20 0.1 undecidable manual P 321 26.8509 94 -0.48 90
IV.MMO1.EHZ. 2021-10-10T05:25:37.76 0.3 undecidable manual S 104 12.1767 118 -0.17 73
IV.FEMA.HNE. 2021-10-10T05:25:37.93 0.1 undecidable manual S 290 11.3775 121 0.17 98
IV.CESI.HHZ. 2021-10-10T05:25:37.37 0.1 undecidable manual P 291 24.1536 95 0.11 97
IV.MC2.EHZ. 2021-10-10T05:25:36.37 0.3 undecidable manual S 160 1.7982 170 0.09 76
IT.MTCL.HGZ. 2021-10-10T05:25:36.26 0.1 undecidable manual P 297 16.5723 104 0.15 97
IV.CSP1.EHZ. 2021-10-10T05:25:36.52 0.1 undecidable manual P 6 18.4704 100 0.13 98
IV.FDMO.HHZ. 2021-10-10T05:25:35.85 0.1 undecidable manual P 328 14.3745 110 0.06 100
IV.FEMA.HNE. 2021-10-10T05:25:35.09 0.6 undecidable manual P 290 11.3775 121 -0.28 48
IV.NRCA.HHZ. 2021-10-10T05:25:35.47 0.1 undecidable manual P 208 11.6772 120 0.06 100
IV.MMO1.EHZ. 2021-10-10T05:25:35.59 0.1 positive manual P 104 12.1767 118 0.12 99
IV.MC2.EHZ. 2021-10-10T05:25:34.77 0.1 negative manual P 160 1.7982 170 0.25 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.1 0.00013550000000000001 0.08 AML other m 2021-10-10T05:25:37.59
IV.NRCA.HHE. ML:0.9 0.00008005 0.64 AML other m 2021-10-10T05:25:37.99
IV.NRCA.HNN. ML:1.0 0.000117204415 0.0704 AML other m 2021-10-10T05:25:37.63
IV.FDMO.HHE. ML:0.2 0.0000151361955 0.1984 AML other m 2021-10-10T05:25:38.60
IV.FDMO.HHN. ML:0.2 0.000016267805 0.1984 AML other m 2021-10-10T05:25:38.47
IV.CESI.HHE. ML:0.5 0.00002024827 0.1792 AML other m 2021-10-10T05:25:41.27
IV.CESI.HHN. ML:0.8 0.000032830649999999994 0.2208 AML other m 2021-10-10T05:25:41.51
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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