Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-03-2021 and time 17:15:39 (UTC) in region 1 km S Borgorose (RI)

A magnitude ML 1.3 earthquake occured in region: 1 km S Borgorose (RI), on

  • 01-03-2021 17:15:39 (UTC)
  • 01-03-2021 18:15:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.1890, 13.2340 at 10 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
Borgorose RI 1 4591 4591
Pescorocchiano RI 7 2075 6666
Sante Marie AQ 10 1166 7832
Fiamignano RI 12 1413 9245
Tornimparte AQ 13 3187 12432
Tagliacozzo AQ 13 6889 19321
Nespolo RI 14 246 19567
Lucoli AQ 14 1011 20578
Magliano de' Marsi AQ 15 3690 24268
Massa d'Albe AQ 16 1476 25744
Marcetelli RI 16 89 25833
Carsoli AQ 16 5396 31229
Collegiove RI 16 213 31442
Collalto Sabino RI 16 442 31884
Scurcola Marsicana AQ 16 2824 34708
Pereto AQ 18 682 35390
Petrella Salto RI 18 1197 36587
Varco Sabino RI 19 187 36774
Turania RI 19 241 37015
Paganico Sabino RI 19 172 37187
Ascrea RI 20 234 37421

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of L'Aquila (69753 inhabitants)
44 Km NE of Tivoli (56533 inhabitants)
47 Km E of Guidonia Montecelio (88673 inhabitants)
64 Km SE of Terni (111501 inhabitants)
65 Km SW of Teramo (54892 inhabitants)
67 Km NE of Velletri (53303 inhabitants)
70 Km E of Roma (2864731 inhabitants)
79 Km W of Chieti (51815 inhabitants)
82 Km NE of Aprilia (73446 inhabitants)
84 Km NE of Pomezia (62966 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
85 Km NE of Latina (125985 inhabitants)
86 Km W of Pescara (121014 inhabitants)
94 Km NE of Fiumicino (78395 inhabitants)
96 Km SE of Foligno (57155 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km NE of Anzio (54211 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 1.3 2021-03-01
17:15:39		 42.1887 13.234 10 2021-07-12
16:55:11		 Bollettino Sismico Italiano INGV 90256131
Reviewed
Rev100 		ML 1.5 2021-03-01
17:15:40		 42.1903 13.2407 8 2021-03-01
17:21:52		 Sala Sismica INGV-Roma 87605231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-01 17:15:39 ± 0.07
Latitude 42.1887 ± 0.0045
Longitude 13.2340 ± 0.0061
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90256131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 458
Semi-minor axis of confidence ellipse (meter) 452
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.11781
Epicentral distance of station farthest from the epicenter (degree) 0.44786
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 87605231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-01 17:21:52

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 90256131
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-19 09:50:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HNZ. 2021-03-01T17:15:55.32 0.6 undecidable manual S 341 48.618 50 -0.35 44
IV.T0110.HHZ. 2021-03-01T17:15:55.18 0.3 undecidable manual S 84 44.8218 50 0.53 64
IV.RM33.EHZ. 2021-03-01T17:15:52.99 0.6 undecidable manual S 357 35.5422 50 0.8 39
IV.CERT.HNE. 2021-03-01T17:15:51.53 0.3 undecidable manual S 218 33.744 50 -0.17 70
IV.FAGN.HHZ. 2021-03-01T17:15:50.72 0.3 undecidable manual S 73 29.9478 50 0.02 73
IV.SMA1.EHN. 2021-03-01T17:15:49.38 0.3 undecidable manual P 10 49.7169 50 0.17 68
IV.T1299.HNN. 2021-03-01T17:15:49.68 0.6 undecidable manual P 5 49.617 50 0.49 43
IV.T0110.HHZ. 2021-03-01T17:15:48.49 0.1 undecidable manual P 84 44.8218 50 0.04 95
IV.GUAR.HNN. 2021-03-01T17:15:48.28 0.6 undecidable manual P 172 44.2224 50 -0.08 47
IV.LNSS.HNZ. 2021-03-01T17:15:48.83 0.3 undecidable manual P 341 48.618 50 -0.22 68
IV.PTQR.HHZ. 2021-03-01T17:15:48.84 0.6 undecidable manual S 143 23.0547 113 0.15 48
IV.CAMP.HHE. 2021-03-01T17:15:47.75 0.3 undecidable manual P 20 41.1255 50 -0.13 70
IV.GIGS.HHN. 2021-03-01T17:15:47.64 0.3 undecidable manual P 43 40.4262 50 -0.14 70
IV.RM33.EHZ. 2021-03-01T17:15:46.88 0.1 undecidable manual P 357 35.5422 50 -0.15 94
IT.CSO1.HGZ. 2021-03-01T17:15:46.70 0.3 undecidable manual S 231 15.4734 123 0.33 70
IV.CERT.HNE. 2021-03-01T17:15:46.70 0.3 undecidable manual P 218 33.744 50 -0.05 72
IV.FAGN.HHZ. 2021-03-01T17:15:45.95 0.1 undecidable manual P 73 29.9478 50 -0.22 93
IV.FIAM.HHZ. 2021-03-01T17:15:45.73 0.3 undecidable manual S 313 13.0758 127 0.05 75
IV.PTQR.HHZ. 2021-03-01T17:15:44.70 0.3 undecidable manual P 143 23.0547 113 -0.31 70
MN.AQU.HNZ. 2021-03-01T17:15:44.04 1.0 undecidable manual P 37 23.0547 113 -0.99 18
IV.FIAM.HHZ. 2021-03-01T17:15:43.24 0.1 undecidable manual P 313 13.0758 127 -0.04 100
IT.CSO1.HGZ. 2021-03-01T17:15:43.80 0.3 undecidable manual P 231 15.4734 123 0.13 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:0.8 0.00007148184 0.1408 AML other m 2021-03-01T17:15:46.80
IV.FIAM.HNN. ML:1.2 0.000156660185 0.1536 AML other m 2021-03-01T17:15:46.20
IV.FIAM.HHE. ML:1.0 0.00010977945 0.1408 AML other m 2021-03-01T17:15:46.39
IV.RM33.EHE. ML:1.1 0.00007960000000000001 0.54 AML other m 2021-03-01T17:15:55.52
IV.FAGN.HHN. ML:1.8 0.00032824265 0.3328 AML other m 2021-03-01T17:15:51.02
IV.RM33.EHN. ML:1.3 0.00007730000000000001 0.34 AML other m 2021-03-01T17:15:56.58
IV.T0110.HHE. ML:1.6 0.000133 0.22 AML other m 2021-03-01T17:15:56.96
IV.T0110.HHN. ML:1.8 0.00020600000000000002 0.32 AML other m 2021-03-01T17:15:58.52
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