Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 07-03-2021 and time 07:58:09 (Italy) in region 2 km SW Roccafluvione (AP)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Roccafluvione (AP), on

  • 07-03-2021 06:58:09 (UTC)
  • 07-03-2021 07:58:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8450, 13.4580 at 18 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
Roccafluvione AP 2 2010 2010
Venarotta AP 5 2066 4076
Palmiano AP 6 196 4272
Acquasanta Terme AP 9 2916 7188
Ascoli Piceno AP 10 49407 56595
Montegallo AP 10 523 57118
Montemonaco AP 12 604 57722
Valle Castellana TE 13 977 58699
Comunanza AP 13 3166 61865
Force AP 14 1354 63219
Folignano AP 15 9241 72460
Montefortino FM 15 1178 73638
Rotella AP 15 906 74544
Arquata del Tronto AP 15 1178 75722
Montefalcone Appennino FM 16 424 76146
Castignano AP 17 2796 78942
Amandola FM 17 3629 82571
Montedinove AP 18 488 83059
Smerillo FM 18 365 83424
Appignano del Tronto AP 18 1785 85209
Rocca Santa Maria TE 19 537 85746
Maltignano AP 19 2401 88147
Civitella del Tronto TE 19 5116 93263
Santa Vittoria in Matenano FM 20 1330 94593

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of Teramo (54892 inhabitants)
55 Km N of L'Aquila (69753 inhabitants)
63 Km E of Foligno (57155 inhabitants)
67 Km NW of Montesilvano (53738 inhabitants)
73 Km E of Terni (111501 inhabitants)
75 Km NW of Pescara (121014 inhabitants)
80 Km NW of Chieti (51815 inhabitants)
86 Km S of Ancona (100861 inhabitants)
92 Km E of Perugia (166134 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 2021-03-07
06:58:09		 42.8448 13.4583 18 2021-07-12
16:55:07		 Bollettino Sismico Italiano INGV 89363861
Reviewed
Rev100 		ML 1.3 2021-03-07
06:58:09		 42.8418 13.4512 19 2021-03-07
07:28:28		 Sala Sismica INGV-Roma 87860441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-07 06:58:09 ± 0.1
Latitude 42.8448 ± 0.0036
Longitude 13.4583 ± 0.0061
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89363861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 543
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33185
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 89363861
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-22 15:52:19

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 87860441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-07 07:28:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VOBA.EHZ. 2021-03-07T06:59:50.49 3.0 undecidable manual Sg 11.53 0
IV.TDS.HHZ. 2021-03-07T06:59:46.47 3.0 undecidable manual Sn -6.94 0
IV.SERS.HHZ. 2021-03-07T06:59:28.88 3.0 undecidable manual Pg 12.84 0
IV.TEOL.HHZ. 2021-03-07T06:59:25.90 3.0 undecidable manual Sg 3.92 0
IV.PIPA.HHZ. 2021-03-07T06:59:24.83 3.0 positive manual Pg 13.22 0
IV.ORI.HHZ. 2021-03-07T06:59:10.92 3.0 undecidable manual Pg 7.86 0
IV.CPOZ.HHZ. 2021-03-07T06:59:09.25 3.0 undecidable manual Sn -1.19 0
IV.FIU.EHZ. 2021-03-07T06:58:45.25 3.0 negative manual Pg 3.29 0
IV.PE3.EHZ. 2021-03-07T06:58:37.74 3.0 undecidable manual Sg -2.51 0
IV.FDMO.HHZ. 2021-03-07T06:58:22.16 0.6 undecidable manual S 305 36.8298 105 -0.02 48
IV.CSP1.EHZ. 2021-03-07T06:58:21.72 0.6 undecidable manual S 323 34.2435 107 0.21 47
IV.T1299.HNZ. 2021-03-07T06:58:20.12 0.6 undecidable manual S 212 27.4503 112 0.33 46
IV.NRCA.HHZ. 2021-03-07T06:58:20.07 0.6 undecidable manual S 268 28.0497 112 0.14 48
IV.SMA1.EHZ. 2021-03-07T06:58:19.54 0.6 undecidable manual S 203 25.752 114 0.15 48
IV.GUMA.HNZ. 2021-03-07T06:58:19.86 0.6 undecidable manual S 338 26.1516 114 0.38 46
IV.TERO.HHZ. 2021-03-07T06:58:19.84 0.6 undecidable manual S 154 27.3504 113 0.07 49
IV.CRTC.HHZ. 2021-03-07T06:58:19.08 3.0 undecidable manual P -5.19 0
IV.MC2.EHZ. 2021-03-07T06:58:18.89 0.6 undecidable manual S 289 23.0547 118 0.15 49
IV.MF5.EHZ. 2021-03-07T06:58:17.34 0.6 undecidable manual S 0 15.873 130 0.2 49
IV.MMO1.EHZ. 2021-03-07T06:58:16.17 0.3 undecidable manual S 300 12.2766 139 -0.29 71
IV.MTRA.EHZ. 2021-03-07T06:58:16.11 0.3 undecidable manual S 207 10.9779 143 -0.13 74
IV.FDMO.HHZ. 2021-03-07T06:58:16.54 0.3 undecidable manual P 305 36.8298 105 -0.34 69
IV.CSP1.EHZ. 2021-03-07T06:58:16.27 0.1 undecidable manual P 323 34.2435 107 -0.22 94
IV.GUMA.HNZ. 2021-03-07T06:58:15.33 0.1 undecidable manual P 338 26.1516 114 0.01 99
IV.TERO.HHZ. 2021-03-07T06:58:15.27 0.1 undecidable manual P 154 27.3504 113 -0.22 96
IV.T1299.HNZ. 2021-03-07T06:58:15.58 0.1 undecidable manual P 212 27.4503 112 0.08 97
IV.NRCA.HHZ. 2021-03-07T06:58:15.50 0.3 undecidable manual P 268 28.0497 112 -0.08 73
IV.SMA1.EHZ. 2021-03-07T06:58:15.24 0.1 undecidable manual P 203 25.752 114 -0.03 99
IV.MF5.EHZ. 2021-03-07T06:58:14.33 0.1 undecidable manual P 0 15.873 130 0.37 94
IV.MC2.EHZ. 2021-03-07T06:58:14.89 0.1 undecidable manual P 289 23.0547 118 0 100
IV.MMO1.EHZ. 2021-03-07T06:58:13.38 0.1 undecidable manual P 300 12.2766 139 -0.19 98
IV.MTRA.EHZ. 2021-03-07T06:58:13.39 0.3 undecidable manual P 207 10.9779 143 -0.06 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.2 0.0001385 0.06 AML other m 2021-03-07T06:58:16.20
IV.MTRA.HNN. ML:1.2 0.0001414244 0.0704 AML other m 2021-03-07T06:58:16.20
IV.MTRA.HNE. ML:1.3 0.0001685905 0.0896 AML other m 2021-03-07T06:58:16.21
IV.MTRA.EHE. ML:1.3 0.00016499999999999997 0.1 AML other m 2021-03-07T06:58:16.21
IV.CSP1.EHN. ML:1.0 0.000032789440000000004 0.1216 AML other m 2021-03-07T06:58:16.61
IV.MF5.EHN. ML:1.3 0.00013202303500000002 0.16 AML other m 2021-03-07T06:58:17.58
IV.MF5.EHE. ML:1.1 0.000078371695 0.2816 AML other m 2021-03-07T06:58:17.79
IV.SMA1.EHE. ML:1.2 0.00008010000000000001 0.46 AML other m 2021-03-07T06:58:19.76
IV.SMA1.EHN. ML:1.2 0.00008324332 0.0992 AML other m 2021-03-07T06:58:19.89
IV.NRCA.HHN. ML:1.7 0.0002205 0.14 AML other m 2021-03-07T06:58:20.21
IV.NRCA.HHE. ML:1.5 0.0001305 0.48 AML other m 2021-03-07T06:58:20.39
IV.CSP1.EHE. ML:1.1 0.000051995475 0.96 AML other m 2021-03-07T06:58:32.27
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