Earthquake with magnitude of ML 1.1 on date 01-09-2021 and time 03:05:52 (Italy) in region 2 km S Bisegna (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km S Bisegna (AQ), on

  • 01-09-2021 01:05:52 (UTC)
  • 01-09-2021 03:05:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.907, 13.761 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bisegna AQ 2 223 223
Lecce nei Marsi AQ 7 1702 1925
Villalago AQ 7 568 2493
Gioia dei Marsi AQ 8 1989 4482
Scanno AQ 10 1847 6329
Ortona dei Marsi AQ 11 542 6871
Anversa degli Abruzzi AQ 11 341 7212
Ortucchio AQ 11 1860 9072
Pescasseroli AQ 11 2203 11275
Villavallelonga AQ 12 919 12194
Cocullo AQ 14 230 12424
Collelongo AQ 15 1233 13657
Opi AQ 15 420 14077
Bugnara AQ 15 1125 15202
Pescina AQ 16 4133 19335
San Benedetto dei Marsi AQ 16 3909 23244
Introdacqua AQ 16 2126 25370
Prezza AQ 18 945 26315
Pettorano sul Gizio AQ 18 1376 27691
Rocca Pia AQ 18 178 27869
Trasacco AQ 19 6246 34115
Goriano Sicoli AQ 19 569 34684
Pescosolido FR 19 1555 36239
Campoli Appennino FR 20 1725 37964
Balsorano AQ 20 3569 41533
Villetta Barrea AQ 20 653 42186

Municipalities with at least 50000 inhabitants

An earthquake occurred to
58 Km SE of L'Aquila (69753 inhabitants)
60 Km SW of Chieti (51815 inhabitants)
73 Km SW of Pescara (121014 inhabitants)
75 Km SW of Montesilvano (53738 inhabitants)
80 Km E of Tivoli (56533 inhabitants)
84 Km S of Teramo (54892 inhabitants)
85 Km E of Velletri (53303 inhabitants)
86 Km E of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Latina (125985 inhabitants)
99 Km E of Aprilia (73446 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-09-01
01:05:52
41.9068 13.7612 14 2021-09-01
01:12:20
Sala Sismica INGV-Roma 94892371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-01 01:05:52 ± 0.09
Latitude 41.9068 ± 0.0027
Longitude 13.7612 ± 0.0060
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94892371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 443
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38221
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 94892371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-01 01:12:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CERA.HHZ. 2021-09-01T01:06:05.24 0.3 undecidable manual S 148 0.3633 96 -0.1 70
IV.FAGN.HHZ. 2021-09-01T01:06:05.48 0.3 undecidable manual S 340 0.3822 96 -0.4 66
IV.T0110.HHZ. 2021-09-01T01:06:04.17 0.3 undecidable manual S 2 0.3229 98 0.03 72
IV.LRP.EHZ. 2021-09-01T01:06:03.20 0.1 undecidable manual S 207 0.2905 99 0 97
IV.GIUL.HHZ. 2021-09-01T01:06:02.03 3.0 positive manual P -0.11 0
IV.MIDA.HHZ. 2021-09-01T01:06:01.22 3.0 positive manual P 0.29 0
IT.SULP.HGE. 2021-09-01T01:06:01.07 0.1 undecidable manual S 35 0.2167 105 0.02 98
IV.CERA.HHZ. 2021-09-01T01:06:00.34 0.3 undecidable manual P 148 0.3633 96 0.61 63
IV.POFI.HHZ. 2021-09-01T01:06:00.27 0.3 undecidable manual S 191 0.1925 108 -0.11 72
IT.SULA.HNN. 2021-09-01T01:06:00.89 0.3 undecidable manual S 35 0.2023 107 0.24 71
IV.INTR.HHZ. 2021-09-01T01:05:59.05 0.1 undecidable manual S 46 0.1493 117 -0.14 96
IV.LPEL.HHZ. 2021-09-01T01:05:59.14 3.0 positive manual P -0.01 0
IV.PTQR.HHZ. 2021-09-01T01:05:59.01 0.1 undecidable manual P 293 0.2914 99 0.5 86
IV.FAGN.HHZ. 2021-09-01T01:05:59.67 0.3 undecidable manual P 340 0.3822 96 -0.38 67
IV.VVLD.HHZ. 2021-09-01T01:05:58.07 0.1 undecidable manual S 250 0.1088 129 -0.11 98
IV.T0110.HHZ. 2021-09-01T01:05:58.99 0.3 undecidable manual P 2 0.3229 98 -0.05 72
IV.LRP.EHZ. 2021-09-01T01:05:58.37 0.1 undecidable manual P 207 0.2905 99 -0.12 95
IT.OPI.HGE. 2021-09-01T01:05:58.75 0.1 undecidable manual S 158 0.1403 119 -0.2 94
IT.SULP.HGE. 2021-09-01T01:05:57.20 0.1 undecidable manual P 35 0.2167 105 -0.06 97
IT.SULA.HNN. 2021-09-01T01:05:57.03 0.1 undecidable manual P 35 0.2023 107 0.01 99
IT.OPI.HGE. 2021-09-01T01:05:56.08 0.1 undecidable manual P 158 0.1403 119 0.04 100
IV.INTR.HHZ. 2021-09-01T01:05:56.22 0.1 positive manual P 46 0.1493 117 0.04 100
IV.POFI.HHZ. 2021-09-01T01:05:56.85 0.1 undecidable manual P 191 0.1925 108 -0.02 98
IV.VVLD.HHZ. 2021-09-01T01:05:55.65 0.1 undecidable manual P 250 0.1088 129 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.5 0.000287 0.44 AML other m 2021-09-01T01:05:58.40
IV.VVLD.HHN. ML:1.5 0.0003095 0.28 AML other m 2021-09-01T01:05:58.19
IV.INTR.HHE. ML:1.8 0.000519 0.46 AML other m 2021-09-01T01:05:59.15
IV.INTR.HHN. ML:1.8 0.0004945 0.18 AML other m 2021-09-01T01:06:00.10
IV.POFI.HHE. ML:1.2 8.91E-5 0.74 AML other m 2021-09-01T01:06:00.90
IV.POFI.HHN. ML:1 7.2E-5 0.94 AML other m 2021-09-01T01:06:01.25
IV.LRP.EHE. ML:1.3 8.98E-5 0.44 AML other m 2021-09-01T01:06:03.50
IV.LRP.EHN. ML:0.8 3.04E-5 0.12 AML other m 2021-09-01T01:06:03.58
IV.PTQR.HHN. ML:0.8 2.86E-5 0.72 AML other m 2021-09-01T01:06:04.96
IV.PTQR.HHE. ML:1 4.03E-5 0.58 AML other m 2021-09-01T01:06:04.69
IV.T0110.HHE. ML:1.4 9.315E-5 0.38 AML other m 2021-09-01T01:06:05.29
IV.T0110.HHN. ML:1.4 9.75E-5 0.6 AML other m 2021-09-01T01:06:05.23
IV.LPEL.HHN. ML:1.2 6.175E-5 1.02 AML other m 2021-09-01T01:06:06.98
IV.CERA.HHN. ML:0.9 2.49E-5 0.84 AML other m 2021-09-01T01:06:06.27
IV.CERA.HHE. ML:0.8 1.8825E-5 1.58 AML other m 2021-09-01T01:06:06.09
IV.LPEL.HHE. ML:1.3 7.57E-5 1.48 AML other m 2021-09-01T01:06:06.14
IV.FAGN.HHN. ML:1.3 6.63E-5 0.5 AML other m 2021-09-01T01:06:08.98
IV.FAGN.HHE. ML:1.5 8.8E-5 0.42 AML other m 2021-09-01T01:06:09.71
IV.GIUL.HHN. ML:0.8 1.655E-5 1.54 AML other m 2021-09-01T01:06:10.08
IV.GIUL.HHE. ML:0.8 1.32E-5 0.42 AML other m 2021-09-01T01:06:13.17
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