INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of 2.0 on date 18-03-2017 and time 17:33:58 (UTC) in region Macerata

A magnitude ML 2.0 earthquake occured in the Macerata region on

  • 18-03-2017 17:33:58 (UTC)
  • 18-03-2017 18:33:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.05, 13.05 at 10 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 2011).
Municipality Region Dist Inh Cum Inh
Pieve Torina MC 1 1483 1483
Pievebovigliana MC 3 844 2327
Muccia MC 4 929 3256
Fiordimonte MC 4 207 3463
Monte Cavallo MC 8 149 3612
Serravalle di Chienti MC 8 1085 4697
Fiastra MC 9 578 5275
Camerino MC 10 6902 12177
Acquacanina MC 11 122 12299
Sefro MC 13 431 12730
Visso MC 14 1180 13910
Ussita MC 14 420 14330
Pioraco MC 15 1250 15580
Bolognola MC 16 161 15741
Caldarola MC 17 1839 17580
Castelraimondo MC 18 4741 22321
Fiuminata MC 18 1497 23818
Serrapetrona MC 18 1008 24826
Cessapalombo MC 18 546 25372
Preci PG 19 757 26129
Castelsantangelo sul Nera MC 19 310 26439
Camporotondo di Fiastrone MC 20 589 27028
Belforte del Chienti MC 20 1860 28888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (56045 inhabitants)
54 Km E of Perugia (162449 inhabitants)
64 Km NE of Terni (109193 inhabitants)
69 Km NW of Teramo (54294 inhabitants)
74 Km SW of Ancona (100497 inhabitants)
83 Km NW of L'Aquila (66964 inhabitants)
88 Km S of Fano (62901 inhabitants)
96 Km S of Pesaro (94237 inhabitants)
Recent and historical Seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours)

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 Date and Time (UTC) Latitude Longitude Magnitude Depth (km) Published time (UTC) Author Location ID
Rev 100 2017-03-18
17:33:58
43.05 13.05 ML 2.0 10 2017-03-18
18:05:34
Sala Sismica INGV-Roma 42608481
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-03-18 17:33:58 ± 0.06
Latitude 43.05 ± 0.00
Longitude 13.05 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 42608481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 362
Semi-minor axis of confidence ellipse (meter) 308
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.42808
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 16
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 42608481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-03-18 18:05:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RM33.EHZ. 2017-03-18T17:34:18.57 3.0 undecidable manual S -0.21 0
IV.CESX.HHZ. 2017-03-18T17:34:18.88 3.0 undecidable manual S -0.11 0
IV.T1211.EHZ. 2017-03-18T17:34:17.72 3.0 undecidable manual S -0.52 0
IV.ARVD.HHZ. 2017-03-18T17:34:15.52 3.0 undecidable manual S -0.29 0
IV.MOMA.HHZ. 2017-03-18T17:34:07.73 0.3 undecidable manual P 235 0.4281 50 0.08 69
IV.GIGS.HHZ. 2017-03-18T17:34:12.06 3.0 positive manual P -0.8 0
IV.T1218.EHZ. 2017-03-18T17:34:06.65 0.1 undecidable manual P 173 0.384 50 -0.24 89
IV.T1241.EHZ. 2017-03-18T17:34:06.02 0.1 undecidable manual P 125 0.3408 50 -0.13 92
IV.T1214.EHZ. 2017-03-18T17:34:05.57 0.1 undecidable manual P 158 0.3139 50 -0.12 93
IV.TERO.HHZ. 2017-03-18T17:34:10.74 3.0 undecidable manual P 0.1 0
IV.T1212.EHZ. 2017-03-18T17:34:05.34 0.1 undecidable manual P 181 0.2995 50 -0.1 94
IV.ASSB.HHZ. 2017-03-18T17:34:05.08 0.1 undecidable manual P 268 0.2851 50 -0.11 94
IV.SMA1.EHZ. 2017-03-18T17:34:08.39 3.0 negative manual P 0 0
IV.T1245.HHZ. 2017-03-18T17:34:03.82 0.1 undecidable manual P 152 0.2194 111 -0.13 94
IV.SNTG.HHN. 2017-03-18T17:34:04.35 0.1 undecidable manual P 339 0.2185 112 0.42 89
IV.T1299.EHZ. 2017-03-18T17:34:07.95 3.0 undecidable manual P -0.08 0
IV.GUMA.HHE. 2017-03-18T17:34:03.91 0.1 undecidable manual P 87 0.2095 112 0.16 94
IV.MC2.EHZ. 2017-03-18T17:34:03.55 0.3 undecidable manual P 144 0.1736 116 0.54 65
IV.T1216.EHZ. 2017-03-18T17:34:02.77 0.1 undecidable manual P 188 0.1619 118 -0.01 98
IV.CESI.HHZ. 2017-03-18T17:34:02.18 0.1 undecidable manual P 246 0.1151 127 0.28 93
IV.FEMA.HNZ. 2017-03-18T17:34:01.64 0.1 undecidable manual P 179 0.089 134 0.18 96
IV.T1220.HNZ. 2017-03-18T17:34:01.23 0.1 undecidable manual P 27 0.0657 143 0.1 98
IV.FDMO.HHZ. 2017-03-18T17:34:00.65 0.1 undecidable manual P 117 0.0315 160 -0.1 98
IV.T1219.EHZ. 2017-03-18T17:34:00.78 0.1 undecidable manual P 279 0.0324 159 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:2 0.000488 0.22 AML other m 2017-03-18T17:34:10.14
IV.ASSB.HHE. ML:1.9 0.00036 1.46 AML other m 2017-03-18T17:34:10.17
IV.CESI.HHN. ML:1.7 0.0006195 0.32 AML other m 2017-03-18T17:34:04.74
IV.CESI.HHE. ML:1.7 0.000535 0.68 AML other m 2017-03-18T17:34:05.43
IV.CESX.HHN. ML:1.8 0.00011645 0.66 AML other m 2017-03-18T17:34:18.95
IV.CESX.HHE. ML:1.8 0.00011905 0.64 AML other m 2017-03-18T17:34:20.11
IV.FDMO.HHE. ML:2.4 0.00524 0.16 AML other m 2017-03-18T17:34:01.80
IV.FDMO.HHN. ML:2.4 0.00437 0.18 AML other m 2017-03-18T17:34:01.90
IV.MOMA.HHN. ML:1.7 0.000148 0.88 AML other m 2017-03-18T17:34:15.62
IV.MOMA.HHE. ML:1.6 0.0001225 1.28 AML other m 2017-03-18T17:34:16.05
IV.T1212.EHE. ML:2 0.000383 0.44 AML other m 2017-03-18T17:34:10.54
IV.T1212.EHN. ML:2 0.000384 0.86 AML other m 2017-03-18T17:34:10.50
IV.T1216.EHN. ML:2.2 0.001265 0.24 AML other m 2017-03-18T17:34:06.49
IV.T1216.EHE. ML:2.1 0.0010535 0.28 AML other m 2017-03-18T17:34:06.89
IV.T1218.EHN. ML:1.9 0.000274 0.28 AML other m 2017-03-18T17:34:13.21
IV.T1218.HNN. ML:1.9 0.00027 0.28 AML other m 2017-03-18T17:34:13.35
IV.T1218.HNE. ML:1.9 0.0002645 0.68 AML other m 2017-03-18T17:34:13.19
IV.T1218.EHE. ML:1.9 0.000255 0.68 AML other m 2017-03-18T17:34:13.53
IV.T1219.EHN. ML:2.5 0.005765 0.26 AML other m 2017-03-18T17:34:02.19
IV.T1219.EHE. ML:2.2 0.003075 0.34 AML other m 2017-03-18T17:34:02.06
IV.T1219.HNN. ML:2.5 0.006105 0.26 AML other m 2017-03-18T17:34:02.19
IV.T1219.HNE. ML:2.1 0.00258 0.34 AML other m 2017-03-18T17:34:02.06
IV.T1220.EHN. ML:2.7 0.00722 0.34 AML other m 2017-03-18T17:34:05.32
IV.T1220.EHE. ML:2.8 0.00911 0.24 AML other m 2017-03-18T17:34:03.96
IV.T1245.HHE. ML:1.9 0.0004375 1.06 AML other m 2017-03-18T17:34:09.29
IV.T1245.HHN. ML:1.8 0.0003765 0.18 AML other m 2017-03-18T17:34:09.57
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://cnt.rm.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in full SEED format Download