Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 30-01-2021 and time 15:33:44 (UTC) in region 4 km NE Montereale (AQ)

A magnitude ML 1.4 earthquake occured in region: 4 km NE Montereale (AQ), on

  • 30-01-2021 15:33:44 (UTC)
  • 30-01-2021 16:33:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5570, 13.2620 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Montereale AQ 4 2581 2581
Capitignano AQ 5 665 3246
Amatrice RI 9 2657 5903
Campotosto AQ 9 542 6445
Cittareale RI 11 482 6927
Cagnano Amiterno AQ 11 1369 8296
Borbona RI 12 617 8913
Barete AQ 12 737 9650
Pizzoli AQ 14 4326 13976
Posta RI 14 694 14670
Accumoli RI 16 667 15337
Crognaleto TE 18 1297 16634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
76 Km NE of Tivoli (56533 inhabitants)
78 Km W of Chieti (51815 inhabitants)
79 Km W of Pescara (121014 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
98 Km NE of Roma (2864731 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
Reviewed
Rev100 		ML 1.4 2021-01-30
15:33:44		 42.5568 13.2615 14 2021-01-30
15:42:25		 Sala Sismica INGV-Roma 86720341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-30 15:33:44 ± 0.06
Latitude 42.5568 ± 0.0027
Longitude 13.2615 ± 0.0037
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86720341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 86720341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-30 15:42:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2021-01-30T15:34:05.22 3.0 undecidable manual P 0
IV.MC2.EHZ. 2021-01-30T15:33:58.54 3.0 undecidable manual S -0.05 0
IV.GAVE.EHZ. 2021-01-30T15:33:55.86 0.3 undecidable manual S 297 33.5442 99 -0.06 71
IV.NRCA.HHZ. 2021-01-30T15:33:55.86 0.6 undecidable manual S 339 32.9448 99 0.09 48
IV.TERO.HHZ. 2021-01-30T15:33:54.49 0.3 undecidable manual S 75 28.9488 101 -0.21 70
IV.LNSS.HHZ. 2021-01-30T15:33:52.08 0.3 undecidable manual S 286 18.7701 113 -0.03 74
IV.ARRO.EHZ. 2021-01-30T15:33:52.12 0.3 undecidable manual P 274 40.626 97 -0.03 71
IV.GAVE.EHZ. 2021-01-30T15:33:51.04 0.1 positive manual P 297 33.5442 99 -0.03 96
IV.TERO.HHZ. 2021-01-30T15:33:50.30 0.1 undecidable manual P 75 28.9488 101 -0.07 96
IV.SMA1.EHZ. 2021-01-30T15:33:50.21 0.3 undecidable manual S 36 10.1787 136 0.03 75
IV.CAMP.HHN. 2021-01-30T15:33:50.59 0.3 undecidable manual S 101 12.2766 129 -0.02 75
IV.NRCA.HHZ. 2021-01-30T15:33:50.96 0.3 undecidable manual P 339 32.9448 99 -0.02 72
IV.RM33.EHZ. 2021-01-30T15:33:49.30 0.6 undecidable manual S 216 6.5934 150 -0.3 49
IV.MTRA.HNE. 2021-01-30T15:33:49.68 0.6 undecidable manual P 26 24.753 104 -0.06 48
IV.T1299.EHE. 2021-01-30T15:33:49.74 0.3 undecidable manual S 11 8.7801 141 -0.2 73
IV.SMA1.EHZ. 2021-01-30T15:33:48.00 0.1 positive manual P 36 10.1787 136 0.24 96
IV.CAMP.HHN. 2021-01-30T15:33:48.10 0.1 undecidable manual P 101 12.2766 129 0.1 98
IV.LNSS.HHZ. 2021-01-30T15:33:48.97 0.1 positive manual P 286 18.7701 113 0.1 98
IV.T1299.EHE. 2021-01-30T15:33:47.73 0.1 undecidable manual P 11 8.7801 141 0.12 99
IV.RM33.EHZ. 2021-01-30T15:33:47.46 0.1 undecidable manual P 216 6.5934 150 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNE. ML:1.5 0.00038699245 0.192 AML other m 2021-01-30T15:33:49.56
IV.RM33.EHE. ML:1.5 0.00037324985 0.2048 AML other m 2021-01-30T15:33:49.56
IV.RM33.EHN. ML:1.5 0.0003285 0.08 AML other m 2021-01-30T15:33:49.53
IV.RM33.HNN. ML:1.4 0.000322 0.08 AML other m 2021-01-30T15:33:49.49
IV.SMA1.EHN. ML:1.5 0.0002876625 0.1408 AML other m 2021-01-30T15:33:50.54
IV.SMA1.EHE. ML:1.9 0.00085825785 0.1792 AML other m 2021-01-30T15:33:50.58
IV.LNSS.HHN. ML:1.4 0.0001871074 0.1664 AML other m 2021-01-30T15:33:52.40
IV.LNSS.HHE. ML:1.6 0.00028254495 0.1152 AML other m 2021-01-30T15:33:52.33
IV.LNSS.HNE. ML:1.6 0.0002463544 0.1152 AML other m 2021-01-30T15:33:52.33
IV.LNSS.HNN. ML:1.4 0.0001954033 0.1536 AML other m 2021-01-30T15:33:52.40
IV.TERO.HHE. ML:0.9 0.000038524155 0.064 AML other m 2021-01-30T15:33:56.99
IV.TERO.HHN. ML:0.9 0.000040130369999999996 0.1408 AML other m 2021-01-30T15:33:54.63
IV.TERO.HNE. ML:1.3 0.00010215615 0.6016 AML other m 2021-01-30T15:33:57.29
IV.TERO.HNN. ML:1.5 0.0001513374 1.1008 AML other m 2021-01-30T15:33:52.17
IV.GAVE.HNE. ML:1.6 0.00016923775 1.8944 AML other m 2021-01-30T15:33:55.86
IV.GAVE.EHE. ML:1.3 0.000080185085 0.1664 AML other m 2021-01-30T15:33:56.10
IV.GAVE.EHN. ML:1.2 0.00006309824999999999 0.1664 AML other m 2021-01-30T15:33:56.01
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