Earthquake with magnitude of ML 0.7 on date 24-09-2021 and time 02:28:14 (UTC) in region 5 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 0.7 earthquake occured in region: 5 km SW Castelsantangelo sul Nera (MC), on

  • 24-09-2021 02:28:14 (UTC)
  • 24-09-2021 04:28:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8570, 13.1130 at 10 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
Castelsantangelo sul Nera MC 6 281 281
Preci PG 7 724 1005
Norcia PG 7 4957 5962
Visso MC 9 1107 7069
Ussita MC 10 444 7513
Sellano PG 16 1079 8592
Cerreto di Spoleto PG 17 1075 9667
Cascia PG 17 3217 12884
Arquata del Tronto AP 18 1178 14062
Monte Cavallo MC 18 145 14207
Bolognola MC 18 142 14349
Montegallo AP 18 523 14872
Montemonaco AP 18 604 15476
Acquacanina MC 20 121 15597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Viterbo (67173 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 Km NE of Guidonia Montecelio (88673 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 2021-09-24
02:28:14
42.8567 13.113 10 2021-09-24
02:34:31
Sala Sismica INGV-Roma 95806381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-24 02:28:14 ± 0.07
Latitude 42.8567 ± 0.0036
Longitude 13.1130 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95806381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 510
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 95806381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-24 02:34:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-09-24T02:28:29.89 0.1 undecidable manual S 123 47.7189 50 -0.04 95
IV.SMA1.EHZ. 2021-09-24T02:28:25.49 0.1 undecidable manual S 144 30.9468 50 0.02 98
IV.MML1.EHZ. 2021-09-24T02:28:25.32 0.1 undecidable manual S 338 30.747 50 -0.09 97
IV.CESI.HHZ. 2021-09-24T02:28:23.45 0.1 undecidable manual S 314 23.5542 113 0 100
IV.TERO.HHZ. 2021-09-24T02:28:23.28 0.6 undecidable manual P 123 47.7189 50 -0.15 47
IV.FDMO.HHZ. 2021-09-24T02:28:22.08 0.1 undecidable manual S 354 20.0688 117 -0.26 95
IV.MMO1.EHZ. 2021-09-24T02:28:21.53 0.1 undecidable manual S 75 17.9709 119 -0.18 97
IV.MML1.EHZ. 2021-09-24T02:28:21.01 1.0 positive manual P 338 30.747 50 0.19 24
IV.SMA1.EHZ. 2021-09-24T02:28:20.93 1.0 negative manual P 144 30.9468 50 0.08 24
IV.FDMO.HHZ. 2021-09-24T02:28:19.15 1.0 positive manual P 354 20.0688 117 0.11 25
IV.MC2.EHZ. 2021-09-24T02:28:19.36 0.1 undecidable manual S 45 8.6802 139 0.19 99
IV.CESI.HHZ. 2021-09-24T02:28:19.83 0.1 positive manual P 314 23.5542 113 0.14 97
IV.MMO1.EHZ. 2021-09-24T02:28:18.79 0.6 undecidable manual P 75 17.9709 119 0.11 49
IV.NRCA.HHZ. 2021-09-24T02:28:17.92 0.1 undecidable manual S 178 2.5974 166 -0.25 99
IV.MC2.EHZ. 2021-09-24T02:28:17.54 0.1 negative manual P 45 8.6802 139 0.33 96
IV.NRCA.HHZ. 2021-09-24T02:28:16.84 1.0 undecidable manual P 178 2.5974 166 0.21 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.3 0.0003705 0.14 AML other m 2021-09-24T02:28:18.06
IV.NRCA.HHE. ML:1.5 0.0006075 0.08 AML other m 2021-09-24T02:28:18.14
IV.FDMO.HHN. ML:0.5 0.00002395 0.26 AML other m 2021-09-24T02:28:22.71
IV.FDMO.HHE. ML:0.5 0.0000242 1.32 AML other m 2021-09-24T02:28:23.02
IV.SMA1.EHE. ML:0.6 0.00002225 0.48 AML other m 2021-09-24T02:28:27.60
IV.SMA1.EHN. ML:0.6 0.0000223 0.62 AML other m 2021-09-24T02:28:30.13
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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