Earthquake with magnitude of ML 0.9 on date 03-02-2021 and time 23:43:38 (UTC) in region 2 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 0.9 earthquake occured in region: 2 km NE Castelsantangelo sul Nera (MC), on

  • 03-02-2021 23:43:38 (UTC)
  • 04-02-2021 00:43:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9030, 13.1710 at 16 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 2 281 281
Ussita MC 5 444 725
Visso MC 7 1107 1832
Preci PG 11 724 2556
Bolognola MC 11 142 2698
Montemonaco AP 13 604 3302
Norcia PG 14 4957 8259
Acquacanina MC 14 121 8380
Montefortino FM 15 1178 9558
Fiastra MC 15 559 10117
Montegallo AP 15 523 10640
Fiordimonte MC 16 202 10842
Monte Cavallo MC 17 145 10987
Amandola FM 17 3629 14616
Arquata del Tronto AP 18 1178 15794
Sarnano MC 18 3264 19058
Pieve Torina MC 19 1458 20516
Pievebovigliana MC 19 866 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
64 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
98 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 0.9 2021-02-03
23:43:38
42.9033 13.1712 16 2021-02-04
00:09:13
Sala Sismica INGV-Roma 86820911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-03 23:43:38 ± 0.17
Latitude 42.9033 ± 0.0045
Longitude 13.1712 ± 0.0086
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86820911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 618
Semi-minor axis of confidence ellipse (meter) 394
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.18976
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 86820911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-04 00:09:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2021-02-03T23:43:46.38 0.3 undecidable manual S 7 21.0678 114 -0.07 74
IV.MMO1.EHZ. 2021-02-03T23:43:44.46 0.1 undecidable manual S 92 12.6762 132 -0.09 97
IV.MC2.EHZ. 2021-02-03T23:43:43.29 0.1 undecidable manual S 58 1.6983 172 0.13 100
IV.NRCA.HHZ. 2021-02-03T23:43:43.71 0.1 undecidable manual S 211 8.9799 144 -0.19 97
IV.FDMO.HHZ. 2021-02-03T23:43:42.13 0.1 undecidable manual P 335 16.2726 123 -0.13 98
IV.CSP1.EHZ. 2021-02-03T23:43:42.95 0.1 undecidable manual P 7 21.0678 114 0.04 98
IV.MMO1.EHZ. 2021-02-03T23:43:41.80 0.1 undecidable manual P 92 12.6762 132 -0.02 99
IV.MC2.EHZ. 2021-02-03T23:43:41.20 0.1 undecidable manual P 58 1.6983 172 0.19 99
IV.NRCA.HHZ. 2021-02-03T23:43:41.53 0.1 undecidable manual P 211 8.9799 144 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.00008755 0.1 AML other m 2021-02-03T23:43:43.85
IV.NRCA.HHE. ML:0.7 0.00005185 0.9 AML other m 2021-02-03T23:43:44.06
IV.NRCA.HNE. ML:1.1 0.00012814084500000001 1.3696 AML other m 2021-02-03T23:43:45.19
IV.NRCA.HNN. ML:1.3 0.00020572785 0.8064 AML other m 2021-02-03T23:43:46.18
IV.FDMO.HHE. ML:0.4 0.000018993815000000002 2.2144 AML other m 2021-02-03T23:43:52.60
IV.FDMO.HHN. ML:0.3 0.000017370295000000002 1.5232 AML other m 2021-02-03T23:43:52.79
IV.CSP1.EHE. ML:1.3 0.000109195015 18.112 AML other m 2021-02-03T23:43:46.46
IV.CSP1.EHN. ML:1.0 0.000055812609999999996 1.5488 AML other m 2021-02-03T23:43:55.17
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download