ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 0.9 on date 25-03-2019 and time 03:34:58 (Italy) in region 6 km SW Serravalle di Chienti (MC)

A magnitude ML 0.9 earthquake occured in region: 6 km SW Serravalle di Chienti (MC), on

  • 25-03-2019 02:34:58 (UTC)
  • 25-03-2019 03:34:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.03, 12.91 at 4 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
Serravalle di Chienti MC 6 1070 1070
Monte Cavallo MC 9 145 1215
Pieve Torina MC 12 1458 2673
Muccia MC 13 915 3588
Valtopina PG 13 1398 4986
Nocera Umbra PG 13 5839 10825
Sefro MC 13 422 11247
Pievebovigliana MC 15 866 12113
Fiordimonte MC 15 202 12315
Sellano PG 16 1079 13394
Camerino MC 18 6974 20368
Pioraco MC 18 1134 21502
Fiuminata MC 18 1402 22904
Foligno PG 19 57155 80059
Visso MC 19 1107 81166
Spello PG 20 8645 89811

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
56 Km NE of Terni (111501 inhabitants)
77 Km NW of Teramo (54892 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
91 Km S of Fano (60888 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km SE of Arezzo (99543 inhabitants)
98 Km S of Pesaro (94582 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 0.9 2019-03-25
02:34:58
43.03 12.91 4 2019-03-25
02:56:11
Sala Sismica INGV-Roma 66890701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-25 02:34:58 ± 0.17
Latitude 43.03 ± 0.01
Longitude 12.91 ± 0.00
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66890701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 532
Semi-minor axis of confidence ellipse (meter) 383
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 178
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.24821
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 66890701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-25 02:56:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2019-03-25T02:35:08.83 0.6 undecidable manual S 308 0.2482 99 0.34 91
IV.SNTG.HHZ. 2019-03-25T02:35:07.54 0.6 undecidable manual S 6 0.2239 100 -0.05 97
IV.ASSB.HHZ. 2019-03-25T02:35:05.97 0.6 undecidable manual S 273 0.1817 102 -0.02 98
IV.FDMO.HHZ. 2019-03-25T02:35:04.31 0.6 undecidable manual S 88 0.1313 106 0.19 96
IV.ATCC.EHZ. 2019-03-25T02:35:04.26 0.6 negative manual P 308 0.2482 99 -0.15 94
IV.SNTG.HHZ. 2019-03-25T02:35:03.63 0.6 negative manual P 6 0.2239 100 -0.26 93
IV.ASSB.HHZ. 2019-03-25T02:35:02.98 1.0 negative manual P 273 0.1817 102 0.02 49
IV.FDMO.HHZ. 2019-03-25T02:35:01.89 0.6 negative manual P 88 0.1313 106 0.01 99
IV.CESI.HHZ. 2019-03-25T02:35:00.57 0.6 undecidable manual S 184 0.027 144 -0.07 100
IV.CESI.HHZ. 2019-03-25T02:34:59.88 1.0 undecidable manual P 184 0.027 144 0 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0 0.0019557515 0.1392 AML other m 2019-03-25T02:35:00.85
IV.CESI.HHN. ML:0 0.002296863 0.0992 AML other m 2019-03-25T02:35:00.62
IV.FDMO.HHE. ML:1.1 0.000156392 0.1792 AML other m 2019-03-25T02:35:04.40
IV.FDMO.HHN. ML:0.7 5.7207845E-5 0.1392 AML other m 2019-03-25T02:35:04.37
IV.ASSB.HHE. ML:0.8 5.519857E-5 0.88 AML other m 2019-03-25T02:35:06.82
IV.ASSB.HHN. ML:0.8 4.840118E-5 1.6208 AML other m 2019-03-25T02:35:06.39
IV.SNTG.HHE. ML:0.6 2.4474265E-5 0.4816 AML other m 2019-03-25T02:35:07.89
IV.SNTG.HHN. ML:0.7 3.3702265E-5 1.0192 AML other m 2019-03-25T02:35:08.04
IV.SNTG.HNE. ML:1.2 0.000108111439 3.1408 AML other m 2019-03-25T02:35:06.33
IV.SNTG.HNN. ML:1.2 9.8714285E-5 1.2096 AML other m 2019-03-25T02:35:06.98
IV.ATCC.EHE. ML:0.9 4.7449995E-5 0.24 AML other m 2019-03-25T02:35:09.35
IV.ATCC.EHN. ML:1 5.08514E-5 0.72 AML other m 2019-03-25T02:35:08.10
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