ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.1 on date 23-03-2019 and time 20:10:21 (Italy) in region 5 km E Pizzoli (AQ)

A magnitude ML 1.1 earthquake occured in region: 5 km E Pizzoli (AQ), on

  • 23-03-2019 19:10:21 (UTC)
  • 23-03-2019 20:10:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.45, 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
Pizzoli AQ 5 4326 4326
Barete AQ 6 737 5063
Capitignano AQ 9 665 5728
Cagnano Amiterno AQ 11 1369 7097
L'Aquila AQ 11 69753 76850
Scoppito AQ 12 3727 80577
Montereale AQ 12 2581 83158
Campotosto AQ 12 542 83700
Crognaleto TE 15 1297 84997
Lucoli AQ 17 1011 86008
Tornimparte AQ 18 3187 89195
Pietracamela TE 19 271 89466
Fano Adriano TE 19 296 89762
Borbona RI 20 617 90379

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of L'Aquila (69753 inhabitants)
37 Km SW of Teramo (54892 inhabitants)
59 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
68 Km W of Chieti (51815 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
71 Km W of Pescara (121014 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km SE of Foligno (57155 inhabitants)
95 Km NE of Roma (2864731 inhabitants)
97 Km NE of Velletri (53303 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
Rev 100 ML 1.1 2019-03-23
19:10:21
42.45 13.35 11 2019-03-23
19:14:45
Sala Sismica INGV-Roma 66844721
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-23 19:10:21 ± 0.12
Latitude 42.45 ± 0.01
Longitude 13.35 ± 0.01
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 66844721

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 445
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 750
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.12051
Epicentral distance of station farthest from the epicenter (degree) 0.42448
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 66844721
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-23 19:14:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2019-03-23T19:10:36.70 0.3 undecidable manual S 335 0.4245 50 0.05 72
IV.GAVE.EHZ. 2019-03-23T19:10:36.81 0.6 undecidable manual S 306 0.4182 50 0.35 46
IV.MTRA.EHZ. 2019-03-23T19:10:32.97 0.3 undecidable manual S 6 0.3112 50 -0.31 69
IV.LNSS.HHZ. 2019-03-23T19:10:32.55 0.1 undecidable manual S 304 0.2788 50 0.21 97
IV.TERO.HHZ. 2019-03-23T19:10:31.32 0.6 undecidable manual S 46 0.2536 50 -0.27 47
IV.SMA1.EHZ. 2019-03-23T19:10:30.00 0.3 undecidable manual S 356 0.1835 50 0.49 68
IV.NRCA.HHZ. 2019-03-23T19:10:30.24 0.3 undecidable manual P 335 0.4245 50 -0.05 72
IV.FIAM.HHZ. 2019-03-23T19:10:30.64 0.6 undecidable manual S 225 0.2509 50 -0.85 37
IV.GAVE.EHZ. 2019-03-23T19:10:30.41 1.0 undecidable manual P 306 0.4182 50 0.23 23
IV.GIGS.HHZ. 2019-03-23T19:10:28.83 0.3 undecidable manual S 88 0.161 50 -0.01 75
IV.MTRA.EHZ. 2019-03-23T19:10:28.16 0.1 undecidable manual P 6 0.3112 50 -0.19 95
IV.LNSS.HHZ. 2019-03-23T19:10:28.00 1.0 positive manual P 304 0.2788 50 0.2 24
IV.FAGN.HHZ. 2019-03-23T19:10:28.10 0.3 undecidable manual P 137 0.2482 50 0.84 59
IV.TERO.HHZ. 2019-03-23T19:10:27.23 0.1 negative manual P 46 0.2536 50 -0.14 97
IV.FIAM.HHZ. 2019-03-23T19:10:27.40 1.0 undecidable manual P 225 0.2509 50 0.09 25
IV.RM33.EHZ. 2019-03-23T19:10:27.34 0.1 undecidable manual S 301 0.1205 129 -0.26 100
IV.SMA1.EHZ. 2019-03-23T19:10:26.31 0.6 positive manual P 356 0.1835 50 0.14 49
IV.RM33.EHZ. 2019-03-23T19:10:25.07 0.3 positive manual P 301 0.1205 129 0.01 75
IV.GIGS.HHZ. 2019-03-23T19:10:25.70 0.6 negative manual P 88 0.161 50 -0.07 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.3 0.000184 0.24 AML other m 2019-03-23T19:10:27.88
IV.RM33.EHN. ML:1.4 0.0002375 0.8 AML other m 2019-03-23T19:10:27.80
IV.GIGS.HHN. ML:0.8 4.945E-5 0.38 AML other m 2019-03-23T19:10:29.91
IV.GIGS.HHE. ML:0.6 3.515E-5 0.82 AML other m 2019-03-23T19:10:30.41
IV.SMA1.EHN. ML:0.9 5.78E-5 0.72 AML other m 2019-03-23T19:10:30.44
IV.SMA1.EHE. ML:1.1 9.385E-5 0.42 AML other m 2019-03-23T19:10:30.52
IV.TERO.HHE. ML:1.1 6.13E-5 0.5 AML other m 2019-03-23T19:10:32.05
IV.TERO.HHN. ML:1.1 6.935E-5 0.44 AML other m 2019-03-23T19:10:32.08
IV.LNSS.HHN. ML:1.2 6.65E-5 1.1 AML other m 2019-03-23T19:10:33.18
IV.MTRA.EHE. ML:1.3 7.385E-5 0.5 AML other m 2019-03-23T19:10:33.10
IV.LNSS.HHE. ML:1.2 6.475E-5 0.98 AML other m 2019-03-23T19:10:33.85
IV.FIAM.HHE. ML:0.6 2.195E-5 0.62 AML other m 2019-03-23T19:10:33.34
IV.FIAM.HHN. ML:0.8 3.17E-5 1.12 AML other m 2019-03-23T19:10:33.18
IV.MTRA.EHN. ML:1.1 5.29E-5 1.72 AML other m 2019-03-23T19:10:34.10
IV.FAGN.HHE. ML:1.4 0.0001265 0.44 AML other m 2019-03-23T19:10:35.49
IV.FAGN.HHN. ML:1.4 0.0001345 0.26 AML other m 2019-03-23T19:10:36.38
IV.NRCA.HHN. ML:1.1 3.555E-5 0.12 AML other m 2019-03-23T19:10:37.29
IV.NRCA.HHE. ML:1.2 4.485E-5 1.1 AML other m 2019-03-23T19:10:37.27
IV.GAVE.EHE. ML:1.2 4.14E-5 1.52 AML other m 2019-03-23T19:10:39.02
IV.GAVE.EHN. ML:1.1 3.455E-5 1.36 AML other m 2019-03-23T19:10:40.19
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