Earthquake with magnitude of ML 1.3 on date 01-02-2021 and time 10:54:25 (Italy) in region 6 km SE Leonessa (RI)

A magnitude ML 1.3 earthquake occured in region: 6 km SE Leonessa (RI), on

  • 01-02-2021 09:54:25 (UTC)
  • 01-02-2021 10:54:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.51, 13.01 at 13 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Leonessa RI 6 2435 2435
Posta RI 8 694 3129
Micigliano RI 8 127 3256
Cantalice RI 10 2755 6011
Poggio Bustone RI 10 2055 8066
Borbona RI 10 617 8683
Antrodoco RI 12 2588 11271
Rivodutri RI 12 1253 12524
Borgo Velino RI 13 972 13496
Castel Sant'Angelo RI 13 1308 14804
Morro Reatino RI 14 373 15177
Cittaducale RI 15 6828 22005
Polino TR 16 233 22238
Monteleone di Spoleto PG 16 599 22837
Rieti RI 17 47698 70535
Labro RI 17 374 70909
Cittareale RI 17 482 71391
Colli sul Velino RI 19 533 71924
Cagnano Amiterno AQ 19 1369 73293
Montereale AQ 20 2581 75874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Terni (111501 inhabitants)
37 Km W of L'Aquila (69753 inhabitants)
55 Km SE of Foligno (57155 inhabitants)
60 Km W of Teramo (54892 inhabitants)
61 Km NE of Guidonia Montecelio (88673 inhabitants)
63 Km N of Tivoli (56533 inhabitants)
75 Km E of Viterbo (67173 inhabitants)
81 Km NE of Roma (2864731 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
94 Km N of Velletri (53303 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
97 Km W of Chieti (51815 inhabitants)
99 Km W of Pescara (121014 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2021-02-01
09:54:25
42.51 13.01 13 2021-02-01
10:02:29
Sala Sismica INGV-Roma 86759501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-01 09:54:25 ± 0.15
Latitude 42.51 ± 0.01
Longitude 13.01 ± 0.01
Depth (km) 13 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86759501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1094
Semi-minor axis of confidence ellipse (meter) 865
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 13
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.45326
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 86759501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-01 10:02:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CAPR.HNZ. 2021-02-01T09:56:13.67 3.0 undecidable manual Sg 12.55 0
IV.CROCE.HNZ. 2021-02-01T09:55:42.92 3.0 positive manual Pn -1.49 0
IV.NDIM.HNZ. 2021-02-01T09:55:40.05 3.0 undecidable manual Sg 2.97 0
IV.SPS2.HHZ. 2021-02-01T09:55:39.62 3.0 positive manual Pg 16.190001 0
OT.OT11.EHZ. 2021-02-01T09:55:36.91 3.0 undecidable manual Sg 10.46 0
IV.MTMR.HNZ. 2021-02-01T09:55:28.64 3.0 undecidable manual Sn -0.34 0
IV.USI.HHZ. 2021-02-01T09:55:27.02 3.0 undecidable manual Pg 10.77 0
IV.CADC.HNZ. 2021-02-01T09:55:19.91 3.0 undecidable manual Pg 7.22 0
IV.FIR.HHZ. 2021-02-01T09:54:45.87 3.0 undecidable manual Pn -1.41 0
IV.SMA1.EHZ. 2021-02-01T09:54:35.75 0.3 undecidable manual S 64 0.2689 95 -0.12 75
IV.MMO1.EHZ. 2021-02-01T09:54:34.40 0.1 undecidable manual P 31 0.4524 92 -0.18 95
IV.MC2.EHZ. 2021-02-01T09:54:34.26 1.0 undecidable manual P 19 0.42 93 0.23 23
IV.TERO.HHZ. 2021-02-01T09:54:34.41 0.6 undecidable manual P 76 0.4533 92 -0.19 47
IV.FOSV.EHZ. 2021-02-01T09:54:34.40 3.0 undecidable manual P -1.67 0
IV.GAVE.EHZ. 2021-02-01T09:54:33.73 0.3 undecidable manual S 335 0.197 99 -0.01 76
IV.ARRO.EHZ. 2021-02-01T09:54:33.83 0.1 undecidable manual S 290 0.1889 100 0.32 97
IV.RM33.EHZ. 2021-02-01T09:54:32.28 0.3 undecidable manual S 92 0.1538 107 -0.21 74
IV.FIAM.HHZ. 2021-02-01T09:54:32.01 1.0 negative manual P 161 0.2581 96 0.74 21
IV.SMA1.EHZ. 2021-02-01T09:54:31.60 0.1 positive manual P 64 0.2689 95 0.15 98
IV.GAVE.EHZ. 2021-02-01T09:54:30.49 0.1 undecidable manual P 335 0.197 99 0.26 97
IV.LNSS.HHZ. 2021-02-01T09:54:30.69 0.3 undecidable manual S 16 0.0926 128 -0.21 76
IV.ARRO.EHZ. 2021-02-01T09:54:29.16 0.1 undecidable manual P 290 0.1889 100 -0.93 77
IV.RM33.EHZ. 2021-02-01T09:54:29.67 0.3 undecidable manual P 92 0.1538 107 0.17 75
IV.LNSS.HHZ. 2021-02-01T09:54:28.80 0.1 undecidable manual P 16 0.0926 128 0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.8 0.000601 0.12 AML other m 2021-02-01T09:54:30.90
IV.LNSS.HHN. ML:1.6 0.00040344085 0.1152 AML other m 2021-02-01T09:54:30.00
IV.RM33.EHE. ML:1.5 0.0002246873 0.1216 AML other m 2021-02-01T09:54:32.67
IV.RM33.EHN. ML:1.1 9.5173775E-5 0.0768 AML other m 2021-02-01T09:54:32.71
IV.SMA1.EHN. ML:1.5 0.000159362445 0.1984 AML other m 2021-02-01T09:54:36.04
IV.SMA1.EHE. ML:1.5 0.0001525 0.16 AML other m 2021-02-01T09:54:36.20
IV.FIAM.HHN. ML:0.8 3.018179E-5 0.2176 AML other m 2021-02-01T09:54:36.37
IV.FIAM.HHE. ML:0.6 1.7705414E-5 0.32 AML other m 2021-02-01T09:54:39.37
IV.LNSS.HNE. ML:1.7 0.0005499901 0.1344 AML other m 2021-02-01T09:54:30.89
IV.LNSS.HNN. ML:1.5 0.0003650114 0.1024 AML other m 2021-02-01T09:54:30.95
IV.RM33.HNE. ML:1.5 0.00023210051 0.1344 AML other m 2021-02-01T09:54:32.66
IV.RM33.HNN. ML:1.2 0.00011618805 0.2112 AML other m 2021-02-01T09:54:34.10
IV.GAVE.EHE. ML:1.1 8.263508E-5 0.3008 AML other m 2021-02-01T09:54:34.63
IV.GAVE.EHN. ML:1.2 9.7873505E-5 0.1792 AML other m 2021-02-01T09:54:34.12
IV.GAVE.HNE. ML:1.1 8.320369E-5 0.2304 AML other m 2021-02-01T09:54:33.92
IV.GAVE.HNN. ML:1.4 0.0001804307 0.7488 AML other m 2021-02-01T09:54:45.09
IV.TERO.HHE. ML:1 2.377037E-5 0.064 AML other m 2021-02-01T09:54:41.11
IV.TERO.HHN. ML:1.1 3.468143E-5 0.1408 AML other m 2021-02-01T09:54:40.96
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download