Earthquake with magnitude of ML 1.1 on date 22-10-2020 and time 15:04:22 (Italy) in region 2 km SW Campotosto (AQ)

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

  • 22-10-2020 13:04:22 (UTC)
  • 22-10-2020 15:04:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.54, 13.36 at 11 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
Campotosto AQ 2 542 542
Capitignano AQ 6 665 1207
Crognaleto TE 10 1297 2504
Montereale AQ 10 2581 5085
Amatrice RI 12 2657 7742
Barete AQ 12 737 8479
Pizzoli AQ 13 4326 12805
Fano Adriano TE 14 296 13101
Cagnano Amiterno AQ 15 1369 14470
Cortino TE 15 656 15126
Pietracamela TE 16 271 15397
Cittareale RI 19 482 15879
Borbona RI 19 617 16496
Accumoli RI 20 667 17163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of L'Aquila (69753 inhabitants)
31 Km W of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
70 Km W of Pescara (121014 inhabitants)
71 Km SE of Foligno (57155 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
80 Km NE of Guidonia Montecelio (88673 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 1.1 2020-10-22
13:04:22
42.54 13.36 11 2020-10-22
13:10:19
Sala Sismica INGV-Roma 84028351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 13:04:22 ± 0.06
Latitude 42.54 ± 0.00
Longitude 13.36 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84028351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 388
Semi-minor axis of confidence ellipse (meter) 309
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 194
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3912
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 84028351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-22 13:10:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-10-22T13:04:52.05 3.0 undecidable manual S -0.17 0
IV.NRCA.HHZ. 2020-10-22T13:04:35.00 0.6 undecidable manual S 328 0.3444 50 -0.05 48
IV.TERO.HHZ. 2020-10-22T13:04:30.34 0.6 undecidable manual S 65 0.1943 50 -0.28 47
IV.MC2.EHZ. 2020-10-22T13:04:30.61 0.1 undecidable manual P 341 0.3912 50 0.12 93
IV.MTRA.EHZ. 2020-10-22T13:04:30.80 0.6 undecidable manual S 6 0.2158 50 -0.46 45
IV.GIGS.HHZ. 2020-10-22T13:04:29.97 0.6 undecidable manual S 120 0.1781 50 -0.15 49
IV.NRCA.HHZ. 2020-10-22T13:04:29.73 0.1 negative manual P 328 0.3444 50 0.04 95
IV.TERO.HHZ. 2020-10-22T13:04:27.28 0.3 negative manual P 65 0.1943 50 0.16 72
IV.LNSS.HHZ. 2020-10-22T13:04:27.83 0.1 undecidable manual P 285 0.2455 50 -0.17 96
IV.SMA1.EHZ. 2020-10-22T13:04:27.43 0.6 undecidable manual S 347 0.0908 137 -0.1 49
IV.MTRA.EHZ. 2020-10-22T13:04:27.62 0.3 positive manual P 6 0.2158 50 0.12 72
IV.RM33.EHZ. 2020-10-22T13:04:27.90 0.6 undecidable manual S 253 0.1142 131 -0.28 48
IV.GIGS.HHZ. 2020-10-22T13:04:26.90 0.1 undecidable manual P 120 0.1781 50 0.06 97
IV.SMA1.EHZ. 2020-10-22T13:04:25.46 0.3 positive manual P 347 0.0908 137 0.12 74
IV.RM33.EHZ. 2020-10-22T13:04:25.79 0.3 negative manual P 253 0.1142 131 0.07 74
IV.CAMP.HHZ. 2020-10-22T13:04:24.80 0.1 undecidable manual P 100 0.0342 161 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.0001665 0.4 AML other m 2020-10-22T13:04:28.03
IV.RM33.EHN. ML:1 0.000117 0.12 AML other m 2020-10-22T13:04:28.16
IV.SMA1.EHE. ML:1.1 0.000167 0.84 AML other m 2020-10-22T13:04:28.66
IV.RM33.EHE. ML:1.1 0.000131 1.26 AML other m 2020-10-22T13:04:28.00
IV.MTRA.EHN. ML:1.1 7.075E-5 0.8 AML other m 2020-10-22T13:04:31.30
IV.TERO.HHN. ML:1 6.395E-5 0.78 AML other m 2020-10-22T13:04:31.96
IV.MTRA.EHE. ML:1.1 7.195E-5 0.84 AML other m 2020-10-22T13:04:31.71
IV.TERO.HHE. ML:0.9 4.865E-5 0.42 AML other m 2020-10-22T13:04:31.56
IV.NRCA.HHE. ML:1.8 0.000214 0.1 AML other m 2020-10-22T13:04:35.29
IV.NRCA.HHN. ML:1.6 0.000142 1.9 AML other m 2020-10-22T13:04:35.04
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