ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.8 on date 15-03-2019 and time 20:44:23 (UTC) in region 4 km SE Campotosto (AQ)

A magnitude ML 0.8 earthquake occured in region: 4 km SE Campotosto (AQ), on

  • 15-03-2019 20:44:23 (UTC)
  • 15-03-2019 21:44:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.53, 13.4 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 4 542 542
Crognaleto TE 7 1297 1839
Capitignano AQ 8 665 2504
Fano Adriano TE 12 296 2800
Montereale AQ 12 2581 5381
Pietracamela TE 13 271 5652
Barete AQ 13 737 6389
Pizzoli AQ 13 4326 10715
Cortino TE 14 656 11371
Amatrice RI 14 2657 14028
Cagnano Amiterno AQ 16 1369 15397
L'Aquila AQ 20 69753 85150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of L'Aquila (69753 inhabitants)
29 Km W of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
66 Km W of Chieti (51815 inhabitants)
67 Km W of Pescara (121014 inhabitants)
74 Km SE of Foligno (57155 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
81 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
Rev 100 ML 0.8 2019-03-15
20:44:23
42.53 13.4 9 2019-03-15
20:57:44
Sala Sismica INGV-Roma 66567051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-15 20:44:23 ± 0.12
Latitude 42.53 ± 0.01
Longitude 13.40 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66567051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 855
Semi-minor axis of confidence ellipse (meter) 522
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36602
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 66567051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-15 20:57:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EUCT.HNZ. 2019-03-15T20:45:42.24 3.0 undecidable manual Sn 0.14 0
ST.PANI.EHZ. 2019-03-15T20:45:34.86 3.0 undecidable manual Sn 0.77 0
IV.SPS2.HHZ. 2019-03-15T20:45:30.89 3.0 undecidable manual Pg 10.14 0
ST.CARE.EHZ. 2019-03-15T20:45:19.29 3.0 positive manual Pg 13.68 0
IV.NRCA.HHZ. 2019-03-15T20:44:36.60 0.3 undecidable manual S 325 0.366 50 -0.3 66
IV.NRCA.HHZ. 2019-03-15T20:44:30.82 0.1 undecidable manual P 325 0.366 50 -0.24 89
IV.FAGN.HHE. 2019-03-15T20:44:30.29 0.1 undecidable manual P 153 0.3004 50 0.36 88
IV.TERO.HHZ. 2019-03-15T20:44:30.45 0.3 undecidable manual S 59 0.1772 114 -0.08 72
IV.T1299.EHE. 2019-03-15T20:44:29.56 0.3 undecidable manual S 320 0.1322 121 0.56 65
IV.RM33.EHZ. 2019-03-15T20:44:28.94 0.3 undecidable manual S 260 0.1367 120 -0.21 70
IV.TERO.HHZ. 2019-03-15T20:44:27.35 0.3 positive manual P 59 0.1772 114 -0.03 72
IV.SMA1.EHZ. 2019-03-15T20:44:26.25 1.0 positive manual P 335 0.1079 126 0.2 24
IV.RM33.EHZ. 2019-03-15T20:44:26.46 0.6 positive manual P 260 0.1367 120 -0.12 48
IV.T1299.EHE. 2019-03-15T20:44:26.74 0.1 undecidable manual P 320 0.1322 121 0.24 93
IV.CAMP.HHE. 2019-03-15T20:44:25.79 0.3 undecidable manual S 69 0.009 173 -0.33 70
IV.CAMP.HHE. 2019-03-15T20:44:24.83 0.1 undecidable manual P 69 0.009 173 -0.01 100
IV.MMUR.HNZ. 2019-03-15T20:44:20.98 3.0 negative manual P -0.09 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.6 4.49034E-5 0.448 AML other m 2019-03-15T20:44:31.78
IV.SMA1.EHN. ML:0.6 4.3462205E-5 0.3584 AML other m 2019-03-15T20:44:30.80
IV.RM33.HNE. ML:1.1 0.0001170465 0.2688 AML other m 2019-03-15T20:44:29.15
IV.RM33.EHE. ML:1.1 0.00011761495 0.2816 AML other m 2019-03-15T20:44:29.16
IV.RM33.EHN. ML:0.8 6.355639E-5 0.2048 AML other m 2019-03-15T20:44:29.93
IV.TERO.HHE. ML:0.6 2.7952985E-5 0.0512 AML other m 2019-03-15T20:44:30.88
IV.TERO.HHN. ML:0.6 3.0581E-5 0.0768 AML other m 2019-03-15T20:44:31.04
IV.NRCA.HHE. ML:0.9 3.1473345E-5 0.0768 AML other m 2019-03-15T20:44:37.50
IV.NRCA.HHN. ML:0.8 1.947405E-5 0.1408 AML other m 2019-03-15T20:44:37.75
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