Earthquake with magnitude of ML 1.1 on date 22-03-2017 and time 21:36:55 (Italy) in region 3 km W Campotosto (AQ)

A magnitude ML 1.1 earthquake occured in region: 3 km W Campotosto (AQ), on

  • 22-03-2017 20:36:55 (UTC)
  • 22-03-2017 21:36:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.57, 13.34 at 9 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 3 542 542
Capitignano AQ 6 665 1207
Amatrice RI 8 2657 3864
Montereale AQ 9 2581 6445
Crognaleto TE 12 1297 7742
Barete AQ 14 737 8479
Pizzoli AQ 15 4326 12805
Cortino TE 15 656 13461
Cagnano Amiterno AQ 15 1369 14830
Cittareale RI 16 482 15312
Accumoli RI 16 667 15979
Fano Adriano TE 17 296 16275
Borbona RI 18 617 16892
Pietracamela TE 18 271 17163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
67 Km W of Montesilvano (53738 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
72 Km W of Chieti (51815 inhabitants)
73 Km W of Pescara (121014 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km SE of Perugia (166134 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 2017-03-22
20:36:55
42.57 13.34 9 2017-03-22
20:40:32
Sala Sismica INGV-Roma 42796011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-22 20:36:55 ± 0.06
Latitude 42.57 ± 0.00
Longitude 13.34 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42796011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 298
Semi-minor axis of confidence ellipse (meter) 133
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 300
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 118
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
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) 0.06115
Epicentral distance of station farthest from the epicenter (degree) 0.30757
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 42796011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-22 20:40:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T1245.HHZ. 2017-03-22T20:37:07.14 0.3 undecidable manual S 339 0.3076 50 0.02 73
IV.TERO.HHZ. 2017-03-22T20:37:03.15 0.6 undecidable manual S 75 0.2023 111 -0.23 48
IV.T1214.EHZ. 2017-03-22T20:37:03.87 0.6 undecidable manual S 333 0.2122 110 0.13 49
IV.T1218.EHZ. 2017-03-22T20:37:02.71 0.6 undecidable manual S 302 0.1925 112 -0.3 47
IV.T1245.HHZ. 2017-03-22T20:37:01.82 1.0 negative manual P 339 0.3076 50 -0.19 24
IV.RM33.EHZ. 2017-03-22T20:37:00.05 0.6 undecidable manual S 237 0.1088 125 -0.14 50
IV.T1247.HHZ. 2017-03-22T20:37:00.79 0.6 undecidable manual S 193 0.1313 121 -0.1 50
IV.T1214.EHZ. 2017-03-22T20:37:00.11 1.0 undecidable manual P 333 0.2122 110 0.06 25
IV.T1299.EHZ. 2017-03-22T20:36:59.08 0.6 undecidable manual S 328 0.0764 135 -0.15 50
IV.T1218.EHZ. 2017-03-22T20:36:59.48 1.0 positive manual P 302 0.1925 112 -0.16 24
IV.TERO.HHZ. 2017-03-22T20:36:59.80 0.1 positive manual P 75 0.2023 111 -0.05 99
IV.RM33.EHZ. 2017-03-22T20:36:58.10 0.6 negative manual P 237 0.1088 125 0.1 50
IV.SMA1.EHZ. 2017-03-22T20:36:58.88 0.6 undecidable manual S 358 0.0612 142 0.05 51
IV.T1247.HHZ. 2017-03-22T20:36:58.58 0.3 undecidable manual P 193 0.1313 121 0.17 73
IV.SMA1.EHZ. 2017-03-22T20:36:57.37 0.1 negative manual P 358 0.0612 142 0.15 100
IV.T1299.EHZ. 2017-03-22T20:36:57.57 0.1 negative manual P 328 0.0764 135 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.2 0.0001765 1.08 AML other m 2017-03-22T20:37:00.92
IV.RM33.EHN. ML:1.1 0.000146 1.04 AML other m 2017-03-22T20:37:01.89
IV.SMA1.EHE. ML:1.5 0.0005505 0.32 AML other m 2017-03-22T20:36:59.01
IV.SMA1.EHN. ML:1.3 0.000337 0.42 AML other m 2017-03-22T20:36:59.33
IV.T1245.HHE. ML:0.8 2.655E-5 1.12 AML other m 2017-03-22T20:37:08.85
IV.T1245.HHN. ML:0.8 3.195E-5 0.74 AML other m 2017-03-22T20:37:08.87
IV.T1247.HHN. ML:1 0.00011065 0.96 AML other m 2017-03-22T20:37:02.40
IV.T1247.HHE. ML:0.9 8.975E-5 0.6 AML other m 2017-03-22T20:37:04.59
IV.T1299.EHN. ML:0.9 0.0001205 0.16 AML other m 2017-03-22T20:36:59.28
IV.T1299.EHE. ML:1.1 0.0001945 0.24 AML other m 2017-03-22T20:36:59.35
IV.TERO.HHN. ML:1.1 8.66E-5 0.26 AML other m 2017-03-22T20:37:03.45
IV.TERO.HHE. ML:1.1 8.275E-5 0.42 AML other m 2017-03-22T20:37:03.56
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