Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 12-02-2020 and time 03:20:28 (Italy) in region 1 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 1 km NE Castelsantangelo sul Nera (MC), on

  • 12-02-2020 02:20:28 (UTC)
  • 12-02-2020 03:20:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9050, 13.1600 at 6 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.

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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 1 281 281
Ussita MC 5 444 725
Visso MC 7 1107 1832
Preci PG 10 724 2556
Bolognola MC 11 142 2698
Norcia PG 14 4957 7655
Montemonaco AP 14 604 8259
Acquacanina MC 14 121 8380
Fiastra MC 15 559 8939
Montefortino FM 15 1178 10117
Montegallo AP 16 523 10640
Fiordimonte MC 16 202 10842
Monte Cavallo MC 16 145 10987
Pieve Torina MC 18 1458 12445
Amandola FM 18 3629 16074
Arquata del Tronto AP 19 1178 17252
Pievebovigliana MC 19 866 18118
Sarnano MC 19 3264 21382
Sellano PG 19 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
92 Km W 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 0.8 2020-02-12
02:20:28		 42.9053 13.1598 7 2020-07-18
21:08:23		 Bollettino Sismico Italiano INGV 77041371
Reviewed
Rev100 		Md 1.4 2020-02-12
02:20:28		 42.9087 13.1587 4 2020-02-12
02:45:02		 Sala Sismica INGV-Roma 76450841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-12 02:20:28 ± 0.09
Latitude 42.9053 ± 0.0027
Longitude 13.1598 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77041371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 38
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.30307
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77041371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-05 08:50:53

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude Md
Reference to an origin 76450841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-12 02:45:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1299.HNZ. 2020-02-12T02:20:40.29 0.6 undecidable manual S 162 31.6461 102 0.45 45
IV.GAVE.HNZ. 2020-02-12T02:20:40.10 0.3 undecidable manual S 223 32.0457 101 0.14 72
IV.SMA1.EHZ. 2020-02-12T02:20:40.16 0.6 undecidable manual S 155 33.6441 101 -0.36 46
IV.MML1.HNZ. 2020-02-12T02:20:38.59 0.6 undecidable manual S 327 27.6501 103 0.11 49
IV.CESI.HHZ. 2020-02-12T02:20:37.06 0.3 undecidable manual S 298 23.4543 105 -0.01 75
IV.GUMA.HHZ. 2020-02-12T02:20:37.08 0.6 undecidable manual S 39 22.5552 106 0.33 47
IV.SMA1.EHZ. 2020-02-12T02:20:35.07 0.3 undecidable manual P 155 33.6441 101 -0.42 68
IV.T1299.HNZ. 2020-02-12T02:20:35.08 0.3 undecidable manual P 162 31.6461 102 -0.02 74
IV.GAVE.HNZ. 2020-02-12T02:20:35.04 0.3 undecidable manual P 223 32.0457 101 -0.13 72
IT.MTCL.HGZ. 2020-02-12T02:20:34.79 0.3 undecidable manual S 307 16.2726 112 0.08 75
IV.MF5.EHZ. 2020-02-12T02:20:34.24 0.3 undecidable manual P 69 25.9518 104 0.25 71
IV.FDMO.HHZ. 2020-02-12T02:20:34.68 0.3 undecidable manual S 338 15.6732 113 0.17 74
IV.MML1.HNZ. 2020-02-12T02:20:33.90 0.3 undecidable manual P 327 27.6501 103 -0.41 69
IV.CESI.HHZ. 2020-02-12T02:20:33.28 0.1 undecidable manual P 298 23.4543 105 -0.22 96
IV.GUMA.HHZ. 2020-02-12T02:20:33.58 0.1 undecidable manual P 39 22.5552 106 0.27 95
IV.MMO1.EHZ. 2020-02-12T02:20:33.95 0.3 undecidable manual S 93 13.5753 116 0.11 75
IV.FEMA.HNZ. 2020-02-12T02:20:33.24 0.3 undecidable manual S 305 10.9779 121 0.21 74
IV.NRCA.HHZ. 2020-02-12T02:20:32.76 0.1 undecidable manual S 205 8.7801 126 0.35 96
IV.FDMO.HHZ. 2020-02-12T02:20:31.88 0.3 undecidable manual P 338 15.6732 113 -0.14 74
IV.MMO1.EHZ. 2020-02-12T02:20:31.62 0.3 undecidable manual P 93 13.5753 116 -0.01 77
IV.FEMA.HNZ. 2020-02-12T02:20:31.21 0.3 undecidable manual P 305 10.9779 121 0.05 76
IT.MTCL.HGZ. 2020-02-12T02:20:31.96 0.3 undecidable manual P 307 16.2726 112 -0.17 74
IV.MC2.EHZ. 2020-02-12T02:20:30.71 0.1 undecidable manual S 74 2.4975 159 -0.32 98
IV.NRCA.HHZ. 2020-02-12T02:20:30.92 0.3 undecidable manual P 205 8.7801 126 0.11 76
IV.MC2.EHZ. 2020-02-12T02:20:29.80 0.1 positive manual P 74 2.4975 159 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.00009040698999999999 0.88 AML other m 2020-02-12T02:20:37.66
IV.CESI.HHE. ML:0.7 0.0000362301435 0.1808 AML other m 2020-02-12T02:20:37.30
IV.SMA1.EHE. ML:0.7 0.000022495705 1.7792 AML other m 2020-02-12T02:20:39.67
IV.SMA1.EHN. ML:0.8 0.000028772105 1.64 AML other m 2020-02-12T02:20:40.13
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