Earthquake with magnitude of ML 1.1 on date 23-01-2020 and time 04:25:57 (UTC) in region 4 km SW Serrapetrona (MC)

A magnitude ML 1.1 earthquake occured in region: 4 km SW Serrapetrona (MC), on

  • 23-01-2020 04:25:57 (UTC)
  • 23-01-2020 05:25:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.15, 13.16 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
Serrapetrona MC 4 966 966
Caldarola MC 6 1823 2789
Belforte del Chienti MC 7 1886 4675
Camerino MC 7 6974 11649
San Severino Marche MC 9 12726 24375
Camporotondo di Fiastrone MC 9 563 24938
Cessapalombo MC 10 512 25450
Castelraimondo MC 10 4587 30037
Pievebovigliana MC 12 866 30903
Gagliole MC 12 620 31523
Muccia MC 12 915 32438
Tolentino MC 12 20069 52507
Fiastra MC 13 559 53066
Acquacanina MC 14 121 53187
San Ginesio MC 14 3498 56685
Fiordimonte MC 14 202 56887
Pioraco MC 14 1134 58021
Pieve Torina MC 15 1458 59479
Colmurano MC 16 1263 60742
Matelica MC 17 9981 70723
Sefro MC 17 422 71145
Ripe San Ginesio MC 17 852 71997
Gualdo MC 18 815 72812
Sarnano MC 18 3264 76076
Bolognola MC 19 142 76218
Fiuminata MC 19 1402 77620
Urbisaglia MC 19 2628 80248
Serravalle di Chienti MC 19 1070 81318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Foligno (57155 inhabitants)
59 Km SW of Ancona (100861 inhabitants)
63 Km E of Perugia (166134 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
78 Km S of Fano (60888 inhabitants)
78 Km NE of Terni (111501 inhabitants)
86 Km S of Pesaro (94582 inhabitants)
91 Km N of L'Aquila (69753 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 2020-01-23
04:25:57
43.15 13.16 11 2020-01-23
04:47:15
Sala Sismica INGV-Roma 75759111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-23 04:25:57 ± 0.09
Latitude 43.15 ± 0.01
Longitude 13.16 ± 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 75759111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 983
Semi-minor axis of confidence ellipse (meter) 548
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.32196
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 75759111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-23 04:47:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2020-01-23T04:26:09.46 0.6 undecidable manual S 185 0.322 50 -0.1 46
IV.MMO1.EHZ. 2020-01-23T04:26:08.02 0.6 undecidable manual S 154 0.2833 50 -0.41 44
IV.MF5.EHZ. 2020-01-23T04:26:08.96 0.6 undecidable manual S 127 0.277 50 0.72 39
IV.CESI.HHZ. 2020-01-23T04:26:07.54 0.6 undecidable manual S 231 0.2365 50 0.5 43
IV.MC2.EHZ. 2020-01-23T04:26:07.44 0.6 undecidable manual S 174 0.2437 50 0.19 46
IV.SNTG.HHZ. 2020-01-23T04:26:05.62 0.6 undecidable manual S 303 0.1871 50 0.05 48
IV.NRCA.HHZ. 2020-01-23T04:26:04.20 0.1 positive manual P 185 0.322 50 -0.28 89
IV.MF5.EHZ. 2020-01-23T04:26:03.86 0.6 negative manual P 127 0.277 50 0.14 46
IV.CESI.HHZ. 2020-01-23T04:26:03.00 0.6 undecidable manual P 231 0.2365 50 -0.03 48
IV.MMO1.EHZ. 2020-01-23T04:26:03.36 0.6 positive manual P 154 0.2833 50 -0.47 43
IV.SNTG.HHZ. 2020-01-23T04:26:02.21 0.6 undecidable manual P 303 0.1871 50 0.04 48
IV.MC2.EHZ. 2020-01-23T04:26:02.94 0.6 positive manual P 174 0.2437 50 -0.21 46
IV.CSP1.EHZ. 2020-01-23T04:26:02.41 0.6 undecidable manual S 150 0.071 144 0.19 48
IV.PF6.EHZ. 2020-01-23T04:26:01.50 0.6 undecidable manual S 120 0.0324 162 -0.02 50
IV.CSP1.EHZ. 2020-01-23T04:26:00.34 0.3 positive manual P 150 0.071 144 0.1 73
IV.SSM1.HNE. 2020-01-23T04:26:00.23 0.1 undecidable manual P 11 0.0764 142 -0.07 98
IV.PF6.EHZ. 2020-01-23T04:25:59.84 0.1 undecidable manual P 120 0.0324 162 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1 0.0001385 0.44 AML other m 2020-01-23T04:26:02.48
IV.CSP1.EHE. ML:1.2 0.000193 0.5 AML other m 2020-01-23T04:26:02.84
IV.NRCA.HHE. ML:1 3.985E-5 1.32 AML other m 2020-01-23T04:26:10.14
IV.NRCA.HHN. ML:1 3.885E-5 0.12 AML other m 2020-01-23T04:26:11.73
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