Earthquake with magnitude of ML 0.8 on date 14-08-2021 and time 09:25:52 (Italy) in region 3 km N Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km N Castelsantangelo sul Nera (MC), on

  • 14-08-2021 07:25:52 (UTC)
  • 14-08-2021 09:25:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9210, 13.1610 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
Castelsantangelo sul Nera MC 3 281 281
Ussita MC 3 444 725
Visso MC 6 1107 1832
Bolognola MC 10 142 1974
Preci PG 11 724 2698
Acquacanina MC 12 121 2819
Fiastra MC 13 559 3378
Montemonaco AP 14 604 3982
Fiordimonte MC 14 202 4184
Montefortino FM 15 1178 5362
Norcia PG 15 4957 10319
Monte Cavallo MC 15 145 10464
Pieve Torina MC 17 1458 11922
Montegallo AP 17 523 12445
Pievebovigliana MC 17 866 13311
Sarnano MC 17 3264 16575
Amandola FM 17 3629 20204
Sellano PG 19 1079 21283
Arquata del Tronto AP 20 1178 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
53 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
66 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
100 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
Reviewed
Rev100
ML 0.8 2021-08-14
07:25:52
42.9207 13.1612 14 2021-08-14
07:35:52
Sala Sismica INGV-Roma 94121161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-14 07:25:52 ± 0.1
Latitude 42.9207 ± 0.0027
Longitude 13.1612 ± 0.0061
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 94121161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 387
Semi-minor axis of confidence ellipse (meter) 333
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.17447
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 94121161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-14 07:35:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTCC.HHZ. 2021-08-14T07:27:39.82 3.0 undecidable manual Sg 11.33 0
GU.GBOS.HHZ. 2021-08-14T07:27:34.89 3.0 undecidable manual Sn -8.7 0
IV.ZEN8.EHZ. 2021-08-14T07:27:31.78 3.0 undecidable manual Sg 7.67 0
IV.SPS2.HHZ. 2021-08-14T07:27:29.24 3.0 undecidable manual Sn -1.55 0
GU.GRAM.HHZ. 2021-08-14T07:27:13.31 3.0 undecidable manual Sg 1.57 0
IV.PZUN.HNZ. 2021-08-14T07:27:11.92 3.0 undecidable manual Sg 13.69 0
IV.NDIM.HNZ. 2021-08-14T07:27:09.33 3.0 undecidable manual Sg 1.61 0
IV.MGR.HHZ. 2021-08-14T07:27:04.12 3.0 undecidable manual Sn -1.3 0
IV.TDS.HHZ. 2021-08-14T07:26:47.10 3.0 positive manual Pg 6.58 0
IV.QLNO.HHZ. 2021-08-14T07:26:45.07 3.0 positive manual Pn -2.61 0
CH.MUGIO.HHZ. 2021-08-14T07:26:44.74 3.0 undecidable manual Pn -9.67 0
IV.SGAL.EHZ. 2021-08-14T07:26:43.95 3.0 undecidable manual Pg 1.38 0
GU.CANO.HHZ. 2021-08-14T07:26:40.66 3.0 undecidable manual Pn -7.41 0
IV.BRSN.HNZ. 2021-08-14T07:26:33.48 3.0 undecidable manual Sn -9.99 0
IV.TEOL.HHZ. 2021-08-14T07:26:26.39 3.0 undecidable manual Pn -6.74 0
IV.APEC.HHZ. 2021-08-14T07:26:24.68 3.0 undecidable manual Sg -1.01 0
GU.GRAM.HHZ. 2021-08-14T07:26:22.84 3.0 positive manual Pn -9.99 0
IV.LMD.HHZ. 2021-08-14T07:26:16.56 3.0 negative manual Pg -1.61 0
IV.TST01.HHZ. 2021-08-14T07:26:07.25 3.0 undecidable manual Pg 1.86 0
IV.CSP1.EHZ. 2021-08-14T07:25:59.82 0.6 undecidable manual S 11 19.3695 109 -0.12 48
IV.FDMO.HHZ. 2021-08-14T07:25:58.71 0.3 undecidable manual S 335 14.1747 120 0.02 74
IV.NRCA.HHZ. 2021-08-14T07:25:57.74 0.6 undecidable manual S 202 10.3785 133 -0.13 49
IV.MC2.EHZ. 2021-08-14T07:25:56.83 0.6 undecidable manual S 114 2.4975 167 0.03 51
IV.CSP1.EHZ. 2021-08-14T07:25:56.65 0.1 undecidable manual P 11 19.3695 109 -0.02 99
IV.SACS.HHZ. 2021-08-14T07:25:56.81 3.0 undecidable manual P -9.99 0
IV.FDMO.HHZ. 2021-08-14T07:25:56.01 0.6 positive manual P 335 14.1747 120 0.06 49
IV.MC2.EHZ. 2021-08-14T07:25:55.01 1.0 undecidable manual P 114 2.4975 167 0.15 25
IV.NRCA.HHZ. 2021-08-14T07:25:55.51 0.1 undecidable manual P 202 10.3785 133 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.9 0.00007705 0.12 AML other m 2021-08-14T07:25:58.32
IV.NRCA.HHN. ML:1.0 0.00009575 0.96 AML other m 2021-08-14T07:25:58.86
IV.FDMO.HHE. ML:0.2 0.000013549999999999999 1.2 AML other m 2021-08-14T07:25:58.76
IV.FDMO.HHN. ML:0.4 0.0000201 1.64 AML other m 2021-08-14T07:25:59.91
IV.GAVE.EHN. ML:0.9 0.00003075 1.9 AML other m 2021-08-14T07:26:03.02
IV.GAVE.EHE. ML:1.0 0.00003784999999999999 0.08 AML other m 2021-08-14T07:26:13.28
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