ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.2 on date 19-03-2019 and time 00:33:01 (UTC) in region 3 km N Amatrice (RI)

A magnitude ML 1.2 earthquake occured in region: 3 km N Amatrice (RI), on

  • 19-03-2019 00:33:01 (UTC)
  • 19-03-2019 01:33:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.66, 13.28 at 12 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
Amatrice RI 3 2657 2657
Accumoli RI 5 667 3324
Cittareale RI 11 482 3806
Arquata del Tronto AP 13 1178 4984
Campotosto AQ 14 542 5526
Montereale AQ 15 2581 8107
Capitignano AQ 16 665 8772
Acquasanta Terme AP 16 2916 11688
Cortino TE 19 656 12344
Valle Castellana TE 20 977 13321

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Teramo (54892 inhabitants)
36 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km W of Chieti (51815 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
100 Km E of Viterbo (67173 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 1.2 2019-03-19
00:33:01
42.66 13.28 12 2019-03-19
00:41:27
Sala Sismica INGV-Roma 66671511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-19 00:33:01 ± 0.07
Latitude 42.66 ± 0.00
Longitude 13.28 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66671511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 444
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
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) 57
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.35253
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 66671511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-19 00:41:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHE. 2019-03-19T00:33:15.63 0.6 undecidable manual S 22 0.3525 91 1.03 34
IV.GAVE.EHZ. 2019-03-19T00:33:12.51 0.6 undecidable manual S 277 0.2842 92 -0.06 48
IV.MMO1.EHE. 2019-03-19T00:33:11.18 0.6 undecidable manual S 8 0.241 92 -0.11 49
IV.TERO.HHZ. 2019-03-19T00:33:10.98 0.6 undecidable manual S 99 0.2419 92 -0.32 46
IV.MF5.EHE. 2019-03-19T00:33:09.42 0.3 undecidable manual P 22 0.3525 91 0.28 68
IV.LNSS.HHZ. 2019-03-19T00:33:09.64 0.3 undecidable manual S 252 0.1844 94 0.02 74
IV.NRCA.HHZ. 2019-03-19T00:33:09.97 0.3 undecidable manual S 325 0.2113 93 -0.43 68
IV.RM33.EHZ. 2019-03-19T00:33:08.88 0.3 undecidable manual S 197 0.1583 96 0.03 74
IV.CAMP.HHE. 2019-03-19T00:33:08.64 0.6 undecidable manual S 142 0.1574 96 -0.16 48
IV.MTRA.HNZ. 2019-03-19T00:33:07.53 0.3 undecidable manual S 42 0.1295 104 -0.46 69
IV.TERO.HHZ. 2019-03-19T00:33:07.14 0.1 undecidable manual P 99 0.2419 92 -0.1 96
IV.MMO1.EHE. 2019-03-19T00:33:07.26 0.1 undecidable manual P 8 0.241 92 0.03 98
IV.GAVE.EHZ. 2019-03-19T00:33:07.86 0.1 undecidable manual P 277 0.2842 92 -0.11 95
IV.LNSS.HHZ. 2019-03-19T00:33:06.31 0.1 undecidable manual P 252 0.1844 94 0.05 99
IV.NRCA.HHZ. 2019-03-19T00:33:06.60 0.1 positive manual P 325 0.2113 93 -0.11 97
IV.CAMP.HHE. 2019-03-19T00:33:05.89 0.1 undecidable manual P 142 0.1574 96 0.1 99
IV.T1299.EHE. 2019-03-19T00:33:05.70 0.3 undecidable manual S 175 0.0261 162 -0.08 76
IV.MTRA.HNZ. 2019-03-19T00:33:05.27 0.1 undecidable manual P 42 0.1295 104 -0.05 100
IV.RM33.EHZ. 2019-03-19T00:33:05.98 0.1 undecidable manual P 197 0.1583 96 0.16 99
IV.SMA1.EHZ. 2019-03-19T00:33:05.97 0.3 undecidable manual S 126 0.0513 146 -0.14 75
IV.SMA1.EHZ. 2019-03-19T00:33:04.44 0.1 negative manual P 126 0.0513 146 0.2 98
IV.T1299.EHE. 2019-03-19T00:33:04.27 0.1 undecidable manual P 175 0.0261 162 0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.3 0.000253 0.32 AML other m 2019-03-19T00:33:06.07
IV.SMA1.EHE. ML:1.1 0.0001935 0.98 AML other m 2019-03-19T00:33:06.07
IV.MTRA.EHN. ML:1.4 0.0002345 0.5 AML other m 2019-03-19T00:33:07.89
IV.MTRA.EHE. ML:1.2 0.0001625 0.62 AML other m 2019-03-19T00:33:08.20
IV.TERO.HHN. ML:1 5.03E-5 1.76 AML other m 2019-03-19T00:33:12.92
IV.TERO.HHE. ML:1.2 8.85E-5 0.44 AML other m 2019-03-19T00:33:17.30
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