Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 27-03-2021 and time 17:25:42 (UTC) in region 3 km W Cagnano Amiterno (AQ)

A magnitude ML 2.1 earthquake occured in region: 3 km W Cagnano Amiterno (AQ), on

  • 27-03-2021 17:25:42 (UTC)
  • 27-03-2021 18:25:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4480, 13.1920 at 12 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
Cagnano Amiterno AQ 3 1369 1369
Barete AQ 7 737 2106
Pizzoli AQ 9 4326 6432
Borbona RI 9 617 7049
Montereale AQ 10 2581 9630
Antrodoco RI 10 2588 12218
Scoppito AQ 10 3727 15945
Micigliano RI 11 127 16072
Posta RI 12 694 16766
Borgo Velino RI 12 972 17738
Capitignano AQ 12 665 18403
Castel Sant'Angelo RI 15 1308 19711
Cittareale RI 19 482 20193
Campotosto AQ 19 542 20735
Tornimparte AQ 20 3187 23922
Petrella Salto RI 20 1197 25119

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of L'Aquila (69753 inhabitants)
46 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
63 Km NE of Guidonia Montecelio (88673 inhabitants)
63 Km NE of Tivoli (56533 inhabitants)
69 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
81 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
85 Km NE of Roma (2864731 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
98 Km SE 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 2.1 2021-03-27
17:25:42		 42.4485 13.1923 12 2021-07-12
16:55:07		 Bollettino Sismico Italiano INGV 89320461
Reviewed
Rev100 		ML 2.1 2021-03-27
17:25:42		 42.4618 13.1818 14 2021-03-27
17:32:56		 Sala Sismica INGV-Roma 88527881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 17:25:42 ± 0.04
Latitude 42.4485 ± 0.0018
Longitude 13.1923 ± 0.0024
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89320461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 58
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 65
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83997
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 89320461
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-08 12:50:57

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 58
Type of magnitude ML
Reference to an origin 88527881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 17:32:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PZUN.HHZ. 2021-03-27T17:27:08.75 3.0 undecidable manual Sg 12.15 0
IV.RIBO.EHZ.01 2021-03-27T17:26:33.63 3.0 undecidable manual Sn 1.18 0
IV.CSNT.HHZ. 2021-03-27T17:26:17.78 3.0 negative manual Pg 6.25 0
IV.PESA.HHZ. 2021-03-27T17:26:12.54 3.0 undecidable manual P 4.09 0
IV.ATCC.EHZ. 2021-03-27T17:26:10.50 0.6 undecidable manual S 331 93.24 91 0.16 42
IV.CSP1.EHZ. 2021-03-27T17:26:04.73 0.6 undecidable manual S 1 71.373 91 0.23 43
IV.MF5.EHZ. 2021-03-27T17:26:03.47 0.3 undecidable manual S 20 63.6918 91 1.02 49
IV.CESI.HHZ. 2021-03-27T17:26:03.32 0.6 undecidable manual S 339 65.9895 91 0.25 44
IT.GNU.HGE. 2021-03-27T17:26:02.80 0.6 undecidable manual S 308 64.2912 91 0.19 44
IV.MOMA.HHZ. 2021-03-27T17:26:02.83 0.3 undecidable manual S 308 64.2912 91 0.22 66
IV.VCEL.EHZ. 2021-03-27T17:26:00.03 0.6 undecidable manual S 96 53.4021 92 0.32 44
IV.MMO1.EHZ. 2021-03-27T17:25:59.06 0.3 undecidable manual S 12 51.2154 92 -0.06 71
IV.MC2.EHZ. 2021-03-27T17:25:59.36 0.3 undecidable manual S 360 51.3153 92 0.2 68
IV.CESX.HHZ. 2021-03-27T17:25:59.50 0.3 undecidable manual S 290 52.6029 92 0.01 71
IV.LPEL.HHZ. 2021-03-27T17:25:58.48 0.3 undecidable manual P 118 92.7405 91 -0.22 63
IV.ATCC.EHZ. 2021-03-27T17:25:58.85 0.3 undecidable manual P 331 93.24 91 0.07 65
IV.POFI.HNE. 2021-03-27T17:25:58.62 0.6 undecidable manual P 152 91.7415 91 0.08 43
IV.NRCA.HHZ. 2021-03-27T17:25:56.55 0.3 undecidable manual S 352 43.2234 92 -0.43 67
IV.INTR.HHZ. 2021-03-27T17:25:56.40 0.6 undecidable manual P 129 75.9684 91 0.28 43
IV.MNTT.EHZ. 2021-03-27T17:25:56.38 0.6 undecidable manual P 26 75.5688 91 0.32 42
IT.MMP1.HGZ. 2021-03-27T17:25:56.98 0.3 undecidable manual S 239 42.624 92 0.16 71
IV.RCAV.EHZ. 2021-03-27T17:25:55.27 0.1 undecidable manual P 197 69.6747 91 0.12 90
IV.GUAR.HNN. 2021-03-27T17:25:55.22 0.6 undecidable manual P 172 73.1712 91 -0.47 41
IV.VVLD.HHZ. 2021-03-27T17:25:55.96 0.6 undecidable manual P 151 73.371 91 0.25 44
IV.CSP1.EHZ. 2021-03-27T17:25:55.17 0.3 undecidable manual P 1 71.373 91 -0.24 66
IV.MTRA.EHZ. 2021-03-27T17:25:55.28 0.3 undecidable manual S 26 38.0286 93 -0.32 69
IV.TERO.HHZ. 2021-03-27T17:25:55.53 0.3 undecidable manual S 60 38.8278 93 -0.28 69
IV.CESI.HHZ. 2021-03-27T17:25:54.72 0.3 undecidable manual P 339 65.9895 91 0.13 67
IV.MOMA.HHZ. 2021-03-27T17:25:54.27 0.6 undecidable manual P 308 64.2912 91 -0.05 46
IV.SRES.HHN. 2021-03-27T17:25:54.33 0.6 undecidable manual P 247 60.6948 91 0.57 41
IV.GAVE.EHZ. 2021-03-27T17:25:54.89 0.3 undecidable manual S 318 36.4413 93 -0.28 69
IV.FDMO.HHZ. 2021-03-27T17:25:54.28 0.6 undecidable manual P 353 65.7897 91 -0.27 44
IT.GNU.HGE. 2021-03-27T17:25:54.56 0.6 undecidable manual P 308 64.2912 91 0.24 44
IV.MF5.EHZ. 2021-03-27T17:25:54.45 0.1 undecidable manual P 20 63.6918 91 0.23 88
IV.GIGS.HJZ. 2021-03-27T17:25:53.59 0.3 undecidable manual S 89 31.1466 94 -0.18 71
IV.MTCE.HHZ. 2021-03-27T17:25:53.51 0.6 undecidable manual P 218 59.9955 91 -0.14 45
IV.CERT.HHZ. 2021-03-27T17:25:53.24 0.3 undecidable manual P 197 57.9975 91 -0.12 68
IV.MC2.EHZ. 2021-03-27T17:25:52.22 0.3 undecidable manual P 360 51.3153 92 -0.1 70
IV.CESX.HHZ. 2021-03-27T17:25:52.40 0.6 undecidable manual P 290 52.6029 92 -0.12 46
IV.VCEL.EHZ. 2021-03-27T17:25:52.76 0.6 undecidable manual P 96 53.4021 92 0.12 46
IV.PTQR.HHZ. 2021-03-27T17:25:52.44 0.6 undecidable manual P 160 50.3163 92 0.28 45
IV.T0110.HHZ. 2021-03-27T17:25:52.94 0.3 undecidable manual P 117 53.7018 92 0.26 67
IV.MMO1.EHZ. 2021-03-27T17:25:52.05 0.3 undecidable manual P 12 51.2154 92 -0.25 68
IV.SMA1.EHZ. 2021-03-27T17:25:51.59 0.3 undecidable manual S 30 23.3544 96 -0.1 74
IV.T1299.HNZ. 2021-03-27T17:25:51.16 0.3 undecidable manual S 20 21.867 97 -0.14 73
IV.FIAM.HHZ. 2021-03-27T17:25:51.01 0.3 undecidable manual S 197 20.9679 98 -0.05 73
IV.FAGN.HHZ. 2021-03-27T17:25:50.25 0.6 undecidable manual P 122 37.9287 93 -0.01 48
IT.MMP1.HGZ. 2021-03-27T17:25:50.88 0.3 undecidable manual P 239 42.624 92 -0.09 70
IV.TERO.HHZ. 2021-03-27T17:25:50.04 0.3 undecidable manual P 60 38.8278 93 -0.35 68
MN.AQU.HNZ. 2021-03-27T17:25:50.98 0.3 undecidable manual S 121 20.3685 99 0.08 74
IV.CAMP.HHZ. 2021-03-27T17:25:50.84 0.3 undecidable manual S 61 20.1687 99 -0.02 75
IV.ARRO.EHZ. 2021-03-27T17:25:50.04 0.3 undecidable manual P 293 37.7289 93 -0.19 70
IV.LNSS.HHZ. 2021-03-27T17:25:50.95 0.3 undecidable manual S 324 21.1677 98 -0.17 73
IV.NRCA.HHZ. 2021-03-27T17:25:50.85 0.1 positive manual P 352 43.2234 92 -0.22 93
IV.MTRA.EHZ. 2021-03-27T17:25:49.97 0.1 undecidable manual P 26 38.0286 93 -0.31 92
IV.GAVE.EHZ. 2021-03-27T17:25:49.87 0.1 negative manual P 318 36.4413 93 -0.15 95
IV.GIGS.HJZ. 2021-03-27T17:25:48.96 0.3 undecidable manual P 89 31.1466 94 -0.25 70
IV.SMA1.EHZ. 2021-03-27T17:25:48.10 0.1 undecidable manual P 30 23.3544 96 0.09 98
IV.LNSS.HHZ. 2021-03-27T17:25:47.67 0.1 undecidable manual P 324 21.1677 98 -0.01 100
IV.RM33.HNZ. 2021-03-27T17:25:47.75 0.3 undecidable manual S 15 6.993 141 -0.01 76
IV.FIAM.HHZ. 2021-03-27T17:25:47.86 0.1 positive manual P 197 20.9679 98 0.21 97
MN.AQU.HNZ. 2021-03-27T17:25:47.62 0.3 undecidable manual P 121 20.3685 99 0.07 74
IV.CAMP.HHZ. 2021-03-27T17:25:47.60 0.1 positive manual P 61 20.1687 99 0.07 99
IV.T1299.HNZ. 2021-03-27T17:25:47.82 0.3 undecidable manual P 20 21.867 97 0.03 74
IV.RM33.HNZ. 2021-03-27T17:25:45.97 0.1 negative manual P 15 6.993 141 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:2.9 0.0112 1.7 AML other m 2021-03-27T17:25:48.14
IV.RM33.HNE. ML:2.9 0.011399999999999999 1.7 AML other m 2021-03-27T17:25:48.14
IV.RM33.EHN. ML:2.6 0.004695 0.46 AML other m 2021-03-27T17:25:48.32
IV.RM33.HNN. ML:2.6 0.004755 0.46 AML other m 2021-03-27T17:25:48.32
IV.CAMP.HHN. ML:1.9 0.0005250000000000001 0.9 AML other m 2021-03-27T17:25:51.28
IV.CAMP.HHE. ML:1.7 0.00037050000000000006 1.4 AML other m 2021-03-27T17:25:51.29
IV.LNSS.HNN. ML:2.5 0.0020999999999999994 0.46 AML other m 2021-03-27T17:25:51.08
IV.LNSS.HHN. ML:2.5 0.0021000000000000003 0.46 AML other m 2021-03-27T17:25:51.31
IV.FIAM.HHE. ML:1.8 0.00040300000000000004 0.4 AML other m 2021-03-27T17:25:51.61
IV.FIAM.HHN. ML:1.9 0.0005124999999999999 0.26 AML other m 2021-03-27T17:25:51.42
IV.LNSS.HHE. ML:2.4 0.0017000000000000001 0.16 AML other m 2021-03-27T17:25:51.56
IV.LNSS.HNE. ML:2.4 0.00163 0.16 AML other m 2021-03-27T17:25:51.56
IV.SMA1.EHN. ML:2.4 0.0014299999999999998 0.28 AML other m 2021-03-27T17:25:52.18
IV.SMA1.EHE. ML:2.6 0.00249 0.36 AML other m 2021-03-27T17:25:52.38
IV.MTRA.EHE. ML:2.1 0.0004885 0.7 AML other m 2021-03-27T17:25:55.45
IV.MTRA.HNN. ML:2.2 0.000557 0.52 AML other m 2021-03-27T17:25:55.50
IV.MTRA.EHN. ML:2.1 0.0005405 0.7 AML other m 2021-03-27T17:25:55.50
IV.ARRO.EHE. ML:2.1 0.00047450000000000004 0.96 AML other m 2021-03-27T17:25:56.17
IV.MTRA.HNE. ML:2.2 0.0005845000000000001 0.72 AML other m 2021-03-27T17:25:56.79
IV.GAVE.EHN. ML:2.1 0.00045599999999999997 0.2 AML other m 2021-03-27T17:25:56.39
IV.TERO.HHE. ML:1.7 0.0001815 0.48 AML other m 2021-03-27T17:25:56.48
IV.NRCA.HHE. ML:2.4 0.000808 0.12 AML other m 2021-03-27T17:25:57.01
IV.GAVE.EHE. ML:2.2 0.0005685 0.32 AML other m 2021-03-27T17:25:57.24
IV.ARRO.EHN. ML:2.1 0.0005095000000000001 0.16 AML other m 2021-03-27T17:25:57.11
IV.TERO.HHN. ML:1.7 0.0001815 0.16 AML other m 2021-03-27T17:25:57.24
IV.NRCA.HHN. ML:2.3 0.0006005 0.12 AML other m 2021-03-27T17:25:57.65
IV.FAGN.HHN. ML:2.2 0.000607 0.32 AML other m 2021-03-27T17:25:58.66
IV.FAGN.HHE. ML:2.1 0.00046899999999999996 0.7 AML other m 2021-03-27T17:26:01.12
IV.CESX.HHN. ML:1.7 0.0001265 1.78 AML other m 2021-03-27T17:26:01.01
IV.CESX.HHE. ML:1.7 0.00011899999999999999 0.5 AML other m 2021-03-27T17:26:02.42
IV.T0110.HHE. ML:1.8 0.00014150000000000002 0.28 AML other m 2021-03-27T17:26:03.19
IV.T0110.HHN. ML:1.9 0.00019700000000000002 0.48 AML other m 2021-03-27T17:26:03.62
IV.CERT.HHN. ML:1.7 0.000103 0.2 AML other m 2021-03-27T17:26:04.13
IV.MOMA.HNE. ML:2.1 0.00022999999999999998 0.14 AML other m 2021-03-27T17:26:04.15
IV.MOMA.HHE. ML:2.1 0.0002525 0.16 AML other m 2021-03-27T17:26:04.08
IV.MOMA.HHN. ML:2.1 0.0002185 0.66 AML other m 2021-03-27T17:26:04.16
IV.MOMA.HNN. ML:2.1 0.0002375 0.98 AML other m 2021-03-27T17:26:04.66
IV.CERT.HHE. ML:1.8 0.000127 0.78 AML other m 2021-03-27T17:26:04.58
IV.MF5.EHN. ML:2.1 0.00025550000000000003 0.54 AML other m 2021-03-27T17:26:04.20
IV.CESI.HHN. ML:2.1 0.0002165 0.24 AML other m 2021-03-27T17:26:04.68
IV.FDMO.HHN. ML:1.6 0.0000691 0.6 AML other m 2021-03-27T17:26:05.12
IV.CESI.HHE. ML:1.6 0.00007685 0.9 AML other m 2021-03-27T17:26:05.12
IV.MF5.EHE. ML:2.0 0.00017925000000000002 0.92 AML other m 2021-03-27T17:26:06.30
IV.FDMO.HHE. ML:1.6 0.00007439999999999999 0.32 AML other m 2021-03-27T17:26:06.41
IV.VCEL.EHN. ML:1.9 0.000182 0.46 AML other m 2021-03-27T17:26:06.47
IV.CSP1.EHN. ML:2.2 0.00028349999999999995 0.18 AML other m 2021-03-27T17:26:06.85
IV.CSP1.EHE. ML:2.2 0.00027249999999999996 1.62 AML other m 2021-03-27T17:26:06.92
IV.VCEL.EHE. ML:1.9 0.000193 0.28 AML other m 2021-03-27T17:26:07.39
IV.INTR.HHE. ML:1.7 0.00006905 0.44 AML other m 2021-03-27T17:26:12.43
IV.LPEL.HHN. ML:1.7 0.00005515 1.58 AML other m 2021-03-27T17:26:13.85
IV.MNTT.EHE. ML:2.4 0.000383 0.96 AML other m 2021-03-27T17:26:14.20
IV.MNTT.EHN. ML:2.3 0.000282 0.58 AML other m 2021-03-27T17:26:14.20
IV.ATCC.EHE. ML:1.9 0.00009045 0.44 AML other m 2021-03-27T17:26:17.60
IV.LPEL.HHE. ML:1.7 0.00004835 0.7 AML other m 2021-03-27T17:26:19.92
IV.ATCC.EHN. ML:1.8 0.0000649 0.68 AML other m 2021-03-27T17:26:22.27
IV.INTR.HHN. ML:1.8 0.00009955 0.66 AML other m 2021-03-27T17:26:23.71
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
Waveforms Seismic signals in miniseed + resp format Download