Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 16-02-2021 and time 23:51:13 (UTC) in region 7 km E Monteleone di Spoleto (PG)

A magnitude ML 1.2 earthquake occured in region: 7 km E Monteleone di Spoleto (PG), on

  • 16-02-2021 23:51:13 (UTC)
  • 17-02-2021 00:51:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6510, 13.0430 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
Monteleone di Spoleto PG 7 599 599
Cascia PG 8 3217 3816
Cittareale RI 10 482 4298
Poggiodomo PG 11 117 4415
Leonessa RI 12 2435 6850
Posta RI 15 694 7544
Norcia PG 16 4957 12501
Borbona RI 17 617 13118
Accumoli RI 18 667 13785
Polino TR 18 233 14018
Scheggino PG 19 461 14479
Sant'Anatolia di Narco PG 19 564 15043
Vallo di Nera PG 20 364 15407

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
44 Km SE of Foligno (57155 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
54 Km W of Teramo (54892 inhabitants)
74 Km SE of Perugia (166134 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km N of Tivoli (56533 inhabitants)
81 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Roma (2864731 inhabitants)
98 Km W of Chieti (51815 inhabitants)
98 Km W 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
Bulletin
Rev1000 		ML 1.2 2021-02-16
23:51:13		 42.6507 13.043 10 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87602281
Reviewed
Rev100 		ML 1.5 2021-02-16
23:51:14		 42.6573 13.0378 9 2021-02-17
00:12:03		 Sala Sismica INGV-Roma 87223091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-16 23:51:13 ± 0.05
Latitude 42.6507 ± 0.0027
Longitude 13.0430 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87602281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 193
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 33
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48204
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 19
Type of magnitude ML
Reference to an origin 87602281
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-01 13:54:30

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 87223091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-17 00:12:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2021-02-16T23:51:48.21 3.0 undecidable manual S -2 0
IV.INTR.HHZ. 2021-02-16T23:51:46.53 3.0 undecidable manual S 1.82 0
IV.VVLD.HHZ. 2021-02-16T23:51:45.27 3.0 undecidable manual S -0.01 0
IV.ASSB.HHZ. 2021-02-16T23:51:30.88 0.1 undecidable manual S 324 53.502 50 -0.1 91
IV.TERO.HHZ. 2021-02-16T23:51:28.61 0.1 undecidable manual S 94 45.9207 50 -0.33 88
IV.FIAM.HNN. 2021-02-16T23:51:28.05 0.3 undecidable manual S 172 42.8238 50 -0.09 70
IV.MOMA.HHZ. 2021-02-16T23:51:28.36 0.1 undecidable manual S 294 42.1245 50 0.42 87
IV.FDMO.HHZ. 2021-02-16T23:51:28.33 0.1 undecidable manual S 5 42.9237 50 0.17 91
IV.CESX.HHE. 2021-02-16T23:51:27.18 0.3 undecidable manual S 263 37.5291 50 0.47 65
IV.CESI.HHE. 2021-02-16T23:51:27.46 0.1 undecidable manual S 344 40.9257 50 -0.14 92
IV.MMO1.EHZ. 2021-02-16T23:51:26.22 0.1 undecidable manual S 40 36.0417 50 -0.08 94
IV.CAMP.HHE. 2021-02-16T23:51:25.28 0.3 undecidable manual S 113 32.4453 50 -0.08 71
IV.MC2.EHE. 2021-02-16T23:51:25.39 0.1 undecidable manual S 22 31.2465 50 0.35 90
IV.MTRA.EHZ. 2021-02-16T23:51:24.65 0.3 undecidable manual S 68 31.1466 50 -0.35 67
IV.ASSB.HHZ. 2021-02-16T23:51:23.57 0.1 undecidable manual P 324 53.502 50 -0.22 89
IV.SMA1.EHZ. 2021-02-16T23:51:23.21 0.1 undecidable manual S 95 23.9538 112 0.26 93
IV.MOMA.HHZ. 2021-02-16T23:51:22.04 0.1 undecidable manual P 294 42.1245 50 0.01 94
IV.FDMO.HHZ. 2021-02-16T23:51:22.38 0.1 undecidable manual P 5 42.9237 50 0.22 90
IV.ARRO.EHZ. 2021-02-16T23:51:22.41 0.1 undecidable manual S 251 23.9538 112 -0.55 86
IV.TERO.HHZ. 2021-02-16T23:51:22.36 3.0 undecidable manual P 94 45.9207 50 -0.25 89
IV.FIAM.HNN. 2021-02-16T23:51:22.31 0.3 undecidable manual P 172 42.8238 50 0.17 69
IV.NRCA.HNE. 2021-02-16T23:51:21.70 0.1 undecidable manual S 16 21.0678 115 -0.34 92
IV.CESI.HHE. 2021-02-16T23:51:21.99 0.1 undecidable manual P 344 40.9257 50 0.15 92
IV.CESX.HHE. 2021-02-16T23:51:21.38 0.3 undecidable manual P 263 37.5291 50 0.06 71
IV.T1299.HNE. 2021-02-16T23:51:21.78 0.1 undecidable manual S 95 19.5693 117 0.21 94
IV.RM33.EHZ. 2021-02-16T23:51:21.94 0.1 undecidable manual S 138 21.0678 115 -0.09 96
IV.MTRA.EHZ. 2021-02-16T23:51:20.26 0.3 undecidable manual P 68 31.1466 50 -0.08 71
IV.MMO1.EHZ. 2021-02-16T23:51:20.46 0.1 undecidable manual P 40 36.0417 50 -0.62 82
IV.CAMP.HHE. 2021-02-16T23:51:20.46 0.3 undecidable manual P 113 32.4453 50 -0.08 71
IV.MC2.EHE. 2021-02-16T23:51:20.54 0.1 undecidable manual P 22 31.2465 50 0.18 93
IV.SMA1.EHZ. 2021-02-16T23:51:19.32 0.1 positive manual P 95 23.9538 112 0.17 94
IV.GAVE.EHZ. 2021-02-16T23:51:19.44 0.1 undecidable manual S 291 12.9759 127 -0.18 96
IV.ARRO.EHZ. 2021-02-16T23:51:19.12 0.1 negative manual P 251 23.9538 112 -0.04 97
IV.T1299.HNE. 2021-02-16T23:51:18.58 0.1 positive manual P 95 19.5693 117 0.22 94
IV.RM33.EHZ. 2021-02-16T23:51:18.73 3.0 positive manual P 138 21.0678 115 0.11 96
IV.NRCA.HNE. 2021-02-16T23:51:18.78 0.1 positive manual P 16 21.0678 115 0.15 95
IV.LNSS.HHZ. 2021-02-16T23:51:17.80 0.1 undecidable manual S 182 5.2947 152 -0.04 100
IV.GAVE.EHZ. 2021-02-16T23:51:17.31 0.1 positive manual P 291 12.9759 127 0.09 98
IV.LNSS.HHZ. 2021-02-16T23:51:16.44 3.0 undecidable manual P 182 5.2947 152 0.24 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNE. ML:1.7 0.0008900000000000001 0.1 AML other m 2021-02-16T23:51:18.00
IV.LNSS.HHE. ML:1.8 0.000967 0.08 AML other m 2021-02-16T23:51:18.01
IV.LNSS.HNN. ML:1.6 0.0007275844999999999 0.1152 AML other m 2021-02-16T23:51:18.11
IV.LNSS.HHN. ML:1.5 0.00047593589999999996 0.1408 AML other m 2021-02-16T23:51:17.84
IV.GAVE.EHN. ML:1.0 0.000117811265 0.32 AML other m 2021-02-16T23:51:19.78
IV.GAVE.EHE. ML:1.2 0.00018282105 0.1792 AML other m 2021-02-16T23:51:19.61
IV.RM33.EHN. ML:1.3 0.00013122695000000002 0.2176 AML other m 2021-02-16T23:51:22.32
IV.RM33.EHE. ML:1.0 0.000068903515 0.256 AML other m 2021-02-16T23:51:22.59
IV.SMA1.EHE. ML:1.4 0.000171500925 0.2048 AML other m 2021-02-16T23:51:23.50
IV.SMA1.EHN. ML:1.2 0.00010449999999999999 0.3 AML other m 2021-02-16T23:51:23.44
IV.TERO.HHN. ML:0.8 0.000018617592999999997 0.0768 AML other m 2021-02-16T23:51:29.04
IV.TERO.HHE. ML:0.9 0.0000264 1.28 AML other m 2021-02-16T23:51:29.97
IV.GAVE.HNN. ML:1.2 0.00017692537 0.704 AML other m 2021-02-16T23:51:24.90
IV.GAVE.HNE. ML:1.2 0.00017731179999999999 0.192 AML other m 2021-02-16T23:51:19.60
IV.RM33.HNN. ML:1.3 0.00014464554499999999 0.4096 AML other m 2021-02-16T23:51:22.41
IV.MOMA.HHE. ML:1.1 0.000040382809999999996 0.1152 AML other m 2021-02-16T23:51:28.46
IV.MOMA.HHN. ML:1.1 0.000044426715 0.2048 AML other m 2021-02-16T23:51:28.50
IV.ASSB.HHN. ML:1.2 0.000040601245 0.1152 AML other m 2021-02-16T23:51:31.12
IV.ASSB.HHE. ML:1.1 0.000027907765 0.1024 AML other m 2021-02-16T23:51:31.01
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