Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 09-03-2021 and time 04:28:20 (UTC) in region 2 km W Falerone (FM)

A magnitude ML 1.9 earthquake occured in region: 2 km W Falerone (FM), on

  • 09-03-2021 04:28:20 (UTC)
  • 09-03-2021 05:28:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1160, 13.4510 at 23 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
Falerone FM 2 3337 3337
Montappone FM 3 1682 5019
Monte Vidon Corrado FM 3 731 5750
Massa Fermana FM 5 963 6713
Sant'Angelo in Pontano MC 5 1436 8149
Servigliano FM 5 2336 10485
Loro Piceno MC 6 2401 12886
Penna San Giovanni MC 7 1108 13994
Montegiorgio FM 7 6851 20845
Ripe San Ginesio MC 7 852 21697
Belmonte Piceno FM 8 646 22343
Mogliano MC 8 4696 27039
Monte San Martino MC 9 765 27804
Colmurano MC 9 1263 29067
Monteleone di Fermo FM 10 395 29462
Monsampietro Morico FM 10 659 30121
Gualdo MC 11 815 30936
Urbisaglia MC 11 2628 33564
San Ginesio MC 11 3498 37062
Santa Vittoria in Matenano FM 11 1330 38392
Francavilla d'Ete FM 11 964 39356
Magliano di Tenna FM 11 1452 40808
Petriolo MC 12 1998 42806
Grottazzolina FM 12 3398 46204
Smerillo FM 12 365 46569
Montottone FM 12 979 47548
Rapagnano FM 13 2145 49693
Montelparo FM 13 778 50471
Monte San Pietrangeli FM 14 2458 52929
Montefalcone Appennino FM 14 424 53353
Monte Rinaldo FM 14 379 53732
Torre San Patrizio FM 15 2048 55780
Monte Giberto FM 15 801 56581
Sarnano MC 15 3264 59845
Camporotondo di Fiastrone MC 15 563 60408
Corridonia MC 16 15430 75838
Cessapalombo MC 16 512 76350
Ortezzano FM 16 774 77124
Monte Vidon Combatte FM 16 433 77557
Amandola FM 17 3629 81186
Ponzano di Fermo FM 17 1674 82860
Tolentino MC 17 20069 102929
Force AP 17 1354 104283
Petritoli FM 18 2335 106618
Comunanza AP 18 3166 109784
Monte San Giusto MC 18 8191 117975
Belforte del Chienti MC 18 1886 119861
Caldarola MC 18 1823 121684
Pollenza MC 19 6618 128302
Montalto delle Marche AP 19 2122 130424
Montedinove AP 20 488 130912
Montegranaro FM 20 12990 143902
Rotella AP 20 906 144808

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NW of Teramo (54892 inhabitants)
56 Km S of Ancona (100861 inhabitants)
63 Km E of Foligno (57155 inhabitants)
85 Km N of L'Aquila (69753 inhabitants)
86 Km E of Perugia (166134 inhabitants)
88 Km NW of Montesilvano (53738 inhabitants)
88 Km SE of Fano (60888 inhabitants)
90 Km NE of Terni (111501 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
99 Km SE of Pesaro (94582 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 1.9 2021-03-09
04:28:20		 43.1158 13.4513 23 2021-07-12
16:55:01		 Bollettino Sismico Italiano INGV 88029841
Reviewed
Rev100 		ML 1.8 2021-03-09
04:28:20		 43.1132 13.481 19 2021-03-09
04:37:00		 Sala Sismica INGV-Roma 87932011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-09 04:28:20 ± 0.09
Latitude 43.1158 ± 0.0036
Longitude 13.4513 ± 0.0062
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88029841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 254
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 88029841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-08 00:31:30

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 87932011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-09 04:37:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-03-09T04:28:38.49 0.6 undecidable manual S 167 56.0994 105 0.32 44
IV.SMA1.EHZ. 2021-03-09T04:28:37.93 0.3 undecidable manual S 190 54.7008 105 0.13 68
IV.CESI.HHZ. 2021-03-09T04:28:36.19 0.3 undecidable manual S 255 46.0206 109 0.6 62
IV.PIEI.HHZ. 2021-03-09T04:28:35.27 0.6 undecidable manual P 303 87.3459 99 -0.08 44
IV.NARO.HHZ. 2021-03-09T04:28:35.77 0.3 undecidable manual P 308 89.1441 99 0.16 63
IV.NRCA.HHZ. 2021-03-09T04:28:34.83 0.3 undecidable manual S 221 41.625 111 0.35 67
IV.MTRA.EHE. 2021-03-09T04:28:34.14 0.6 undecidable manual S 186 40.1265 112 0.03 48
IT.MTCL.HGZ. 2021-03-09T04:28:34.28 0.6 undecidable manual S 250 39.0276 113 0.43 44
IV.FEMA.HNE. 2021-03-09T04:28:33.93 0.6 undecidable manual S 242 36.741 114 0.64 42
IV.EL6.EHZ. 2021-03-09T04:28:33.58 0.6 undecidable manual S 310 36.8298 114 0.26 46
IV.CING.HNZ. 2021-03-09T04:28:33.06 0.6 undecidable manual S 324 35.4423 115 0.08 48
IV.CIMA.HNE. 2021-03-09T04:28:32.78 0.6 undecidable manual S 40 27.4503 123 1.67 25
IV.RM33.EHZ. 2021-03-09T04:28:32.71 0.3 undecidable manual P 196 70.0743 102 0 68
IV.MC2.EHZ. 2021-03-09T04:28:32.28 0.6 undecidable manual S 223 31.1466 119 0.34 46
IV.ATCC.EHZ. 2021-03-09T04:28:32.26 0.1 undecidable manual P 277 66.0894 102 0.14 89
IV.FDMO.HHZ. 2021-03-09T04:28:31.87 0.1 undecidable manual S 253 30.747 119 0 97
IV.TERO.HHZ. 2021-03-09T04:28:30.72 0.1 undecidable manual P 167 56.0994 105 0.1 91
IV.SMA1.EHZ. 2021-03-09T04:28:30.06 0.1 undecidable manual P 190 54.7008 105 -0.35 87
IV.MMO1.EHZ. 2021-03-09T04:28:30.76 0.1 undecidable manual S 203 26.0517 125 -0.04 97
IV.PF6.EHN. 2021-03-09T04:28:29.36 0.6 undecidable manual S 277 20.9679 132 -0.37 46
IV.CESI.HHZ. 2021-03-09T04:28:29.15 0.1 undecidable manual P 255 46.0206 109 0.02 95
IV.AOI.HHE. 2021-03-09T04:28:29.78 0.3 undecidable manual P 14 49.7169 107 0.11 69
IV.CSP1.EHZ. 2021-03-09T04:28:29.43 0.1 undecidable manual S 262 20.1687 133 -0.14 96
IV.NRCA.HHZ. 2021-03-09T04:28:28.36 0.1 positive manual P 221 41.625 111 -0.14 93
IV.MTRA.EHE. 2021-03-09T04:28:28.04 0.3 undecidable manual P 186 40.1265 112 -0.24 69
IT.MTCL.HGZ. 2021-03-09T04:28:28.04 0.3 undecidable manual P 250 39.0276 113 -0.09 71
IV.MNTT.EHZ. 2021-03-09T04:28:28.90 0.6 undecidable manual S 117 13.1757 146 0.55 45
IV.FEMA.HNE. 2021-03-09T04:28:28.01 0.3 undecidable manual P 242 36.741 114 0.2 70
IV.MF5.EHZ. 2021-03-09T04:28:28.74 0.6 undecidable manual S 177 14.2746 144 0.22 48
IV.GUMA.HHZ. 2021-03-09T04:28:27.88 0.6 undecidable manual S 238 11.0778 151 -0.19 48
IV.CING.HNZ. 2021-03-09T04:28:27.47 0.1 undecidable manual P 324 35.4423 115 -0.16 94
IV.EL6.EHZ. 2021-03-09T04:28:27.82 0.1 undecidable manual P 310 36.8298 114 0 97
IV.CIMA.HNE. 2021-03-09T04:28:27.05 0.3 undecidable manual P 40 27.4503 123 0.5 66
IV.SAP2.EHZ. 2021-03-09T04:28:27.30 0.6 undecidable manual S 243 4.6953 167 -0.15 49
IV.MNTP.HNZ. 2021-03-09T04:28:27.08 0.6 undecidable manual S 31 2.7972 172 -0.27 48
IV.MC2.EHZ. 2021-03-09T04:28:26.98 0.1 undecidable manual P 223 31.1466 119 -0.05 97
IV.MMO1.EHZ. 2021-03-09T04:28:26.17 0.1 positive manual P 203 26.0517 125 -0.2 95
IV.FDMO.HHZ. 2021-03-09T04:28:26.77 0.1 positive manual P 253 30.747 119 -0.22 93
IV.CSP1.EHZ. 2021-03-09T04:28:25.42 0.1 positive manual P 262 20.1687 133 -0.24 95
IV.PF6.EHN. 2021-03-09T04:28:25.41 0.1 positive manual P 277 20.9679 132 -0.34 93
IV.MNTT.EHZ. 2021-03-09T04:28:25.07 0.1 negative manual P 117 13.1757 146 0.12 99
IV.MF5.EHZ. 2021-03-09T04:28:25.03 0.1 negative manual P 177 14.2746 144 -0.02 100
IV.GUMA.HHZ. 2021-03-09T04:28:24.60 0.1 positive manual P 238 11.0778 151 -0.19 97
IV.MNTP.HNZ. 2021-03-09T04:28:24.06 0.1 undecidable manual P 31 2.7972 172 -0.32 96
IV.SAP2.EHZ. 2021-03-09T04:28:24.17 0.1 undecidable manual P 243 4.6953 167 -0.26 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTP.HNE. ML:2.2 0.0011519999999999998 0.28 AML other m 2021-03-09T04:28:27.27
IV.MNTP.HNN. ML:2.1 0.0008575000000000001 0.8 AML other m 2021-03-09T04:28:27.21
IV.SAP2.EHN. ML:2.7 0.00385 0.18 AML other m 2021-03-09T04:28:27.54
IV.SAP2.EHE. ML:2.2 0.00126 0.18 AML other m 2021-03-09T04:28:27.54
IV.GUMA.HNE. ML:1.9 0.0005245 0.44 AML other m 2021-03-09T04:28:28.04
IV.GUMA.HHN. ML:2.1 0.000755 0.22 AML other m 2021-03-09T04:28:28.17
IV.GUMA.HNN. ML:1.8 0.0004485 0.98 AML other m 2021-03-09T04:28:28.06
IV.MF5.EHE. ML:2.0 0.0005885 1.62 AML other m 2021-03-09T04:28:28.09
IV.MF5.EHN. ML:1.9 0.00043100000000000007 0.12 AML other m 2021-03-09T04:28:28.99
IV.MNTT.EHN. ML:1.7 0.0003255 1.34 AML other m 2021-03-09T04:28:29.21
IV.MNTT.EHE. ML:1.9 0.0005385 0.38 AML other m 2021-03-09T04:28:29.25
IV.CSP1.EHN. ML:1.8 0.0003445 0.32 AML other m 2021-03-09T04:28:29.62
IV.CSP1.EHE. ML:1.9 0.000378 0.48 AML other m 2021-03-09T04:28:29.72
IV.GUMA.HHE. ML:1.8 0.00041999999999999996 1.66 AML other m 2021-03-09T04:28:31.09
IV.FDMO.HHE. ML:2.0 0.0003465 0.5 AML other m 2021-03-09T04:28:32.14
IV.FDMO.HHN. ML:1.6 0.00016350000000000002 0.16 AML other m 2021-03-09T04:28:32.08
IV.NRCA.HNN. ML:2.1 0.00036950000000000004 0.14 AML other m 2021-03-09T04:28:35.14
IV.NRCA.HHN. ML:2.1 0.0003855 0.14 AML other m 2021-03-09T04:28:35.14
IV.NRCA.HHE. ML:1.9 0.0002355 1.46 AML other m 2021-03-09T04:28:35.20
IV.NRCA.HNE. ML:2.0 0.00027649999999999994 1.46 AML other m 2021-03-09T04:28:35.20
IV.CESI.HHN. ML:1.8 0.00017649999999999998 0.24 AML other m 2021-03-09T04:28:37.16
IV.CESI.HHE. ML:1.6 0.00010305 0.88 AML other m 2021-03-09T04:28:37.40
IV.SMA1.EHN. ML:1.3 0.00004175 0.14 AML other m 2021-03-09T04:28:39.85
IV.TERO.HHN. ML:1.4 0.0000496 1.1 AML other m 2021-03-09T04:28:40.00
IV.SMA1.EHE. ML:1.4 0.00005805 1.32 AML other m 2021-03-09T04:28:40.95
IV.TERO.HHE. ML:1.3 0.00004075 0.86 AML other m 2021-03-09T04:28:40.28
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